./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/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_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/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_834c708c-8efc-4e49-a025-8b81f7f667e4/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 776d32abf1ae3b62e7ad4a02cd7c02c0cc6433852a1fe73b7d30c6e216da832a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:52:20,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:52:20,795 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:52:20,804 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:52:20,805 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:52:20,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:52:20,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:52:20,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:52:20,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:52:20,856 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:52:20,856 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:52:20,857 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:52:20,857 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:52:20,860 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:52:20,860 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:52:20,861 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:52:20,861 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:52:20,861 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:52:20,862 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:52:20,862 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:52:20,862 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:52:20,866 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:52:20,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:52:20,868 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:52:20,868 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:52:20,868 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:52:20,869 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:52:20,869 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:52:20,869 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:52:20,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:52:20,870 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:52:20,870 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:52:20,871 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:52:20,871 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:52:20,871 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:52:20,872 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:52:20,872 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:52:20,872 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:52:20,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:52:20,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:52:20,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:52:20,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:52:20,874 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:52:20,874 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:52:20,874 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:52:20,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:52:20,875 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:52:20,875 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:52:20,875 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:52:20,876 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_834c708c-8efc-4e49-a025-8b81f7f667e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 776d32abf1ae3b62e7ad4a02cd7c02c0cc6433852a1fe73b7d30c6e216da832a [2024-11-09 05:52:21,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:52:21,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:52:21,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:52:21,234 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:52:21,235 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:52:21,236 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound10.c Unable to find full path for "g++" [2024-11-09 05:52:23,370 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:52:23,574 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:52:23,575 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound10.c [2024-11-09 05:52:23,584 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/data/e05293ed7/1b20d9aeb5ab439db14dc5d358edea34/FLAG98d54e4b1 [2024-11-09 05:52:23,956 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/data/e05293ed7/1b20d9aeb5ab439db14dc5d358edea34 [2024-11-09 05:52:23,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:52:23,963 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:52:23,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:52:23,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:52:23,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:52:23,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:52:23" (1/1) ... [2024-11-09 05:52:23,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aa447c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:23, skipping insertion in model container [2024-11-09 05:52:23,975 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:52:23" (1/1) ... [2024-11-09 05:52:24,009 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:52:24,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:52:24,257 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:52:24,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:52:24,304 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:52:24,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:24 WrapperNode [2024-11-09 05:52:24,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:52:24,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:52:24,307 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:52:24,307 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:52:24,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:24" (1/1) ... [2024-11-09 05:52:24,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:24" (1/1) ... [2024-11-09 05:52:24,344 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 136 [2024-11-09 05:52:24,344 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:52:24,345 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:52:24,345 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:52:24,345 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:52:24,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:24" (1/1) ... [2024-11-09 05:52:24,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:24" (1/1) ... [2024-11-09 05:52:24,357 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:24" (1/1) ... [2024-11-09 05:52:24,357 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:24" (1/1) ... [2024-11-09 05:52:24,361 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:24" (1/1) ... [2024-11-09 05:52:24,365 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:24" (1/1) ... [2024-11-09 05:52:24,367 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:24" (1/1) ... [2024-11-09 05:52:24,368 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:24" (1/1) ... [2024-11-09 05:52:24,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:52:24,372 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:52:24,372 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:52:24,372 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:52:24,373 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:24" (1/1) ... [2024-11-09 05:52:24,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:52:24,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:24,414 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:52:24,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:52:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:52:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:52:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:52:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:52:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:52:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:52:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:52:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:52:24,514 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:52:24,516 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:52:25,374 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-11-09 05:52:25,375 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:52:25,430 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:52:25,430 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 05:52:25,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:52:25 BoogieIcfgContainer [2024-11-09 05:52:25,431 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:52:25,435 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:52:25,435 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:52:25,439 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:52:25,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:52:23" (1/3) ... [2024-11-09 05:52:25,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16fda739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:52:25, skipping insertion in model container [2024-11-09 05:52:25,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:24" (2/3) ... [2024-11-09 05:52:25,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16fda739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:52:25, skipping insertion in model container [2024-11-09 05:52:25,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:52:25" (3/3) ... [2024-11-09 05:52:25,444 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound10.c [2024-11-09 05:52:25,465 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:52:25,466 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2024-11-09 05:52:25,534 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:52:25,541 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;@77ac5a79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:52:25,541 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-09 05:52:25,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 63 states have (on average 1.8888888888888888) internal successors, (119), 113 states have internal predecessors, (119), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 05:52:25,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 05:52:25,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:25,558 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:25,559 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:25,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:25,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1144753570, now seen corresponding path program 1 times [2024-11-09 05:52:25,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:25,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503640586] [2024-11-09 05:52:25,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:25,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:25,812 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:52:25,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:25,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503640586] [2024-11-09 05:52:25,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503640586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:25,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:25,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:52:25,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719510039] [2024-11-09 05:52:25,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:25,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:52:25,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:25,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:52:25,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:52:25,861 INFO L87 Difference]: Start difference. First operand has 125 states, 63 states have (on average 1.8888888888888888) internal successors, (119), 113 states have internal predecessors, (119), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:25,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:25,916 INFO L93 Difference]: Finished difference Result 241 states and 262 transitions. [2024-11-09 05:52:25,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:52:25,919 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 17 [2024-11-09 05:52:25,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:25,927 INFO L225 Difference]: With dead ends: 241 [2024-11-09 05:52:25,928 INFO L226 Difference]: Without dead ends: 122 [2024-11-09 05:52:25,931 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 05:52:25,935 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:25,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:52:25,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-09 05:52:25,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-09 05:52:26,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 62 states have (on average 1.8387096774193548) internal successors, (114), 111 states have internal predecessors, (114), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:52:26,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 130 transitions. [2024-11-09 05:52:26,005 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 130 transitions. Word has length 17 [2024-11-09 05:52:26,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:26,007 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 130 transitions. [2024-11-09 05:52:26,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:26,008 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 130 transitions. [2024-11-09 05:52:26,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 05:52:26,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:26,010 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:26,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:52:26,011 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:26,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:26,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1127819855, now seen corresponding path program 1 times [2024-11-09 05:52:26,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:26,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142176151] [2024-11-09 05:52:26,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:26,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:26,283 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 05:52:26,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:26,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142176151] [2024-11-09 05:52:26,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142176151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:26,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:26,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:52:26,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593489059] [2024-11-09 05:52:26,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:26,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:52:26,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:26,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:52:26,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:52:26,296 INFO L87 Difference]: Start difference. First operand 122 states and 130 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:26,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:26,869 INFO L93 Difference]: Finished difference Result 211 states and 231 transitions. [2024-11-09 05:52:26,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:52:26,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 18 [2024-11-09 05:52:26,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:26,872 INFO L225 Difference]: With dead ends: 211 [2024-11-09 05:52:26,872 INFO L226 Difference]: Without dead ends: 183 [2024-11-09 05:52:26,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:52:26,874 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 208 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:26,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 228 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:52:26,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-09 05:52:26,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 124. [2024-11-09 05:52:26,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 64 states have (on average 1.8125) internal successors, (116), 113 states have internal predecessors, (116), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:52:26,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 132 transitions. [2024-11-09 05:52:26,893 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 132 transitions. Word has length 18 [2024-11-09 05:52:26,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:26,894 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 132 transitions. [2024-11-09 05:52:26,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:26,895 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 132 transitions. [2024-11-09 05:52:26,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 05:52:26,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:26,896 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:26,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:52:26,896 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:26,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:26,897 INFO L85 PathProgramCache]: Analyzing trace with hash 646609691, now seen corresponding path program 1 times [2024-11-09 05:52:26,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:26,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36146887] [2024-11-09 05:52:26,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:26,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:52:26,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277570996] [2024-11-09 05:52:26,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:26,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:26,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:26,966 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:26,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:52:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:27,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:52:27,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:27,105 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:52:27,105 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:52:27,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:27,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36146887] [2024-11-09 05:52:27,106 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:52:27,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277570996] [2024-11-09 05:52:27,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277570996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:27,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:27,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:52:27,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231392553] [2024-11-09 05:52:27,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:27,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:52:27,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:27,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:52:27,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:52:27,114 INFO L87 Difference]: Start difference. First operand 124 states and 132 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:27,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:27,409 INFO L93 Difference]: Finished difference Result 193 states and 211 transitions. [2024-11-09 05:52:27,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:52:27,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 21 [2024-11-09 05:52:27,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:27,413 INFO L225 Difference]: With dead ends: 193 [2024-11-09 05:52:27,413 INFO L226 Difference]: Without dead ends: 189 [2024-11-09 05:52:27,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 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 05:52:27,418 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 59 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:27,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 208 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:52:27,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-09 05:52:27,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 163. [2024-11-09 05:52:27,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 99 states have (on average 1.8080808080808082) internal successors, (179), 148 states have internal predecessors, (179), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:52:27,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 203 transitions. [2024-11-09 05:52:27,444 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 203 transitions. Word has length 21 [2024-11-09 05:52:27,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:27,444 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 203 transitions. [2024-11-09 05:52:27,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:27,445 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 203 transitions. [2024-11-09 05:52:27,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 05:52:27,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:27,446 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:27,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:52:27,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:27,650 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:27,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:27,653 INFO L85 PathProgramCache]: Analyzing trace with hash 646609309, now seen corresponding path program 1 times [2024-11-09 05:52:27,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:27,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090647292] [2024-11-09 05:52:27,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:27,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:52:27,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1181827500] [2024-11-09 05:52:27,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:27,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:27,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:27,708 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:27,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:52:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:27,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:52:27,768 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:27,797 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:52:27,797 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:52:27,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:27,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090647292] [2024-11-09 05:52:27,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:52:27,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181827500] [2024-11-09 05:52:27,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181827500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:27,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:27,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:52:27,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893546294] [2024-11-09 05:52:27,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:27,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:52:27,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:27,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:52:27,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:52:27,804 INFO L87 Difference]: Start difference. First operand 163 states and 203 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:28,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:28,082 INFO L93 Difference]: Finished difference Result 191 states and 207 transitions. [2024-11-09 05:52:28,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:52:28,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 21 [2024-11-09 05:52:28,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:28,084 INFO L225 Difference]: With dead ends: 191 [2024-11-09 05:52:28,084 INFO L226 Difference]: Without dead ends: 189 [2024-11-09 05:52:28,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 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 05:52:28,086 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 59 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:28,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 226 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:52:28,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-09 05:52:28,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 163. [2024-11-09 05:52:28,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 99 states have (on average 1.7878787878787878) internal successors, (177), 148 states have internal predecessors, (177), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:52:28,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 201 transitions. [2024-11-09 05:52:28,102 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 201 transitions. Word has length 21 [2024-11-09 05:52:28,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:28,103 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 201 transitions. [2024-11-09 05:52:28,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:28,103 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 201 transitions. [2024-11-09 05:52:28,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 05:52:28,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:28,106 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:28,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:52:28,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:28,308 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:28,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:28,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1378340131, now seen corresponding path program 1 times [2024-11-09 05:52:28,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:28,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464422950] [2024-11-09 05:52:28,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:28,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:28,585 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:52:28,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:28,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464422950] [2024-11-09 05:52:28,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464422950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:28,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:28,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:52:28,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995761265] [2024-11-09 05:52:28,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:28,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:52:28,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:28,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:52:28,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:52:28,593 INFO L87 Difference]: Start difference. First operand 163 states and 201 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:29,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:29,330 INFO L93 Difference]: Finished difference Result 186 states and 205 transitions. [2024-11-09 05:52:29,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:52:29,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 23 [2024-11-09 05:52:29,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:29,332 INFO L225 Difference]: With dead ends: 186 [2024-11-09 05:52:29,332 INFO L226 Difference]: Without dead ends: 185 [2024-11-09 05:52:29,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:52:29,335 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 53 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:29,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 389 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:52:29,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-09 05:52:29,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 164. [2024-11-09 05:52:29,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 100 states have (on average 1.78) internal successors, (178), 149 states have internal predecessors, (178), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:52:29,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 202 transitions. [2024-11-09 05:52:29,354 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 202 transitions. Word has length 23 [2024-11-09 05:52:29,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:29,355 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 202 transitions. [2024-11-09 05:52:29,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:29,355 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 202 transitions. [2024-11-09 05:52:29,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 05:52:29,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:29,356 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:29,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:52:29,357 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:29,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:29,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1378709537, now seen corresponding path program 1 times [2024-11-09 05:52:29,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:29,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73451807] [2024-11-09 05:52:29,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:29,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:52:29,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1416234295] [2024-11-09 05:52:29,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:29,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:29,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:29,402 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:29,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:52:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:29,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:52:29,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:29,605 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:52:29,605 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:52:29,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:29,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73451807] [2024-11-09 05:52:29,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:52:29,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416234295] [2024-11-09 05:52:29,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416234295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:29,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:29,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:52:29,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613148740] [2024-11-09 05:52:29,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:29,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:52:29,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:29,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:52:29,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:52:29,609 INFO L87 Difference]: Start difference. First operand 164 states and 202 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:29,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:29,959 INFO L93 Difference]: Finished difference Result 183 states and 202 transitions. [2024-11-09 05:52:29,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:52:29,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 23 [2024-11-09 05:52:29,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:29,961 INFO L225 Difference]: With dead ends: 183 [2024-11-09 05:52:29,961 INFO L226 Difference]: Without dead ends: 182 [2024-11-09 05:52:29,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 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 05:52:29,963 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 139 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:29,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 180 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:52:29,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-09 05:52:29,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 164. [2024-11-09 05:52:29,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 100 states have (on average 1.77) internal successors, (177), 149 states have internal predecessors, (177), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:52:29,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 201 transitions. [2024-11-09 05:52:29,994 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 201 transitions. Word has length 23 [2024-11-09 05:52:29,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:29,994 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 201 transitions. [2024-11-09 05:52:29,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:29,995 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 201 transitions. [2024-11-09 05:52:29,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 05:52:29,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:29,995 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:30,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:52:30,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:30,197 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:30,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:30,197 INFO L85 PathProgramCache]: Analyzing trace with hash 221129051, now seen corresponding path program 1 times [2024-11-09 05:52:30,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:30,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921782217] [2024-11-09 05:52:30,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:30,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:52:30,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [617290598] [2024-11-09 05:52:30,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:30,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:30,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:30,233 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:30,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:52:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:30,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:52:30,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:30,400 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:52:30,400 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:52:30,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:30,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921782217] [2024-11-09 05:52:30,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:52:30,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617290598] [2024-11-09 05:52:30,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617290598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:30,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:30,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:52:30,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356710363] [2024-11-09 05:52:30,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:30,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:52:30,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:30,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:52:30,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:52:30,404 INFO L87 Difference]: Start difference. First operand 164 states and 201 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:30,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:30,953 INFO L93 Difference]: Finished difference Result 184 states and 203 transitions. [2024-11-09 05:52:30,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:52:30,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2024-11-09 05:52:30,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:30,955 INFO L225 Difference]: With dead ends: 184 [2024-11-09 05:52:30,955 INFO L226 Difference]: Without dead ends: 183 [2024-11-09 05:52:30,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 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 05:52:30,957 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 53 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:30,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 270 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:52:30,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-09 05:52:30,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 165. [2024-11-09 05:52:30,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 101 states have (on average 1.7623762376237624) internal successors, (178), 150 states have internal predecessors, (178), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:52:30,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 202 transitions. [2024-11-09 05:52:30,970 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 202 transitions. Word has length 24 [2024-11-09 05:52:30,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:30,970 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 202 transitions. [2024-11-09 05:52:30,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:30,971 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 202 transitions. [2024-11-09 05:52:30,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 05:52:30,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:30,972 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:30,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 05:52:31,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:31,176 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:31,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:31,177 INFO L85 PathProgramCache]: Analyzing trace with hash 209677393, now seen corresponding path program 1 times [2024-11-09 05:52:31,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:31,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079814072] [2024-11-09 05:52:31,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:31,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:52:31,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975154954] [2024-11-09 05:52:31,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:31,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:31,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:31,214 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:31,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:52:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:31,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:52:31,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:31,390 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:52:31,391 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:52:31,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:31,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079814072] [2024-11-09 05:52:31,391 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:52:31,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975154954] [2024-11-09 05:52:31,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975154954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:31,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:31,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:52:31,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581796222] [2024-11-09 05:52:31,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:31,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:52:31,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:31,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:52:31,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:52:31,393 INFO L87 Difference]: Start difference. First operand 165 states and 202 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:31,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:31,608 INFO L93 Difference]: Finished difference Result 184 states and 202 transitions. [2024-11-09 05:52:31,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:52:31,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2024-11-09 05:52:31,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:31,611 INFO L225 Difference]: With dead ends: 184 [2024-11-09 05:52:31,611 INFO L226 Difference]: Without dead ends: 183 [2024-11-09 05:52:31,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 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 05:52:31,612 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 138 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:31,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 180 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:52:31,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-09 05:52:31,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 165. [2024-11-09 05:52:31,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 101 states have (on average 1.7524752475247525) internal successors, (177), 150 states have internal predecessors, (177), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:52:31,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 201 transitions. [2024-11-09 05:52:31,624 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 201 transitions. Word has length 24 [2024-11-09 05:52:31,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:31,625 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 201 transitions. [2024-11-09 05:52:31,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:31,625 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 201 transitions. [2024-11-09 05:52:31,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 05:52:31,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:31,626 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:31,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 05:52:31,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:31,830 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:31,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:31,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1734933857, now seen corresponding path program 1 times [2024-11-09 05:52:31,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:31,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834426127] [2024-11-09 05:52:31,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:31,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:52:31,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223453548] [2024-11-09 05:52:31,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:31,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:31,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:31,850 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:31,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:52:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:31,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:52:31,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:31,930 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:52:31,931 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:52:31,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:31,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834426127] [2024-11-09 05:52:31,931 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:52:31,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223453548] [2024-11-09 05:52:31,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223453548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:31,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:31,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:52:31,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658136710] [2024-11-09 05:52:31,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:31,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:52:31,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:31,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:52:31,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:52:31,934 INFO L87 Difference]: Start difference. First operand 165 states and 201 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:32,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:32,064 INFO L93 Difference]: Finished difference Result 279 states and 357 transitions. [2024-11-09 05:52:32,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:52:32,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 25 [2024-11-09 05:52:32,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:32,076 INFO L225 Difference]: With dead ends: 279 [2024-11-09 05:52:32,076 INFO L226 Difference]: Without dead ends: 273 [2024-11-09 05:52:32,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 05:52:32,077 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 56 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:32,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 203 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:52:32,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-09 05:52:32,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 241. [2024-11-09 05:52:32,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 169 states have (on average 1.7100591715976332) internal successors, (289), 218 states have internal predecessors, (289), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 05:52:32,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 329 transitions. [2024-11-09 05:52:32,107 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 329 transitions. Word has length 25 [2024-11-09 05:52:32,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:32,108 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 329 transitions. [2024-11-09 05:52:32,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:32,109 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 329 transitions. [2024-11-09 05:52:32,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 05:52:32,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:32,110 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:32,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 05:52:32,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:32,312 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:32,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:32,313 INFO L85 PathProgramCache]: Analyzing trace with hash -2089935327, now seen corresponding path program 1 times [2024-11-09 05:52:32,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:32,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759602427] [2024-11-09 05:52:32,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:32,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:52:32,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [754008613] [2024-11-09 05:52:32,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:32,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:32,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:32,332 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:32,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:52:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:32,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:52:32,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:32,442 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:52:32,442 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:52:32,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:32,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759602427] [2024-11-09 05:52:32,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:52:32,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754008613] [2024-11-09 05:52:32,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754008613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:32,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:32,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:52:32,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496507404] [2024-11-09 05:52:32,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:32,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:52:32,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:32,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:52:32,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:52:32,449 INFO L87 Difference]: Start difference. First operand 241 states and 329 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:32,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:32,891 INFO L93 Difference]: Finished difference Result 266 states and 333 transitions. [2024-11-09 05:52:32,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:52:32,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 25 [2024-11-09 05:52:32,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:32,894 INFO L225 Difference]: With dead ends: 266 [2024-11-09 05:52:32,894 INFO L226 Difference]: Without dead ends: 265 [2024-11-09 05:52:32,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 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 05:52:32,896 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 101 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:32,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 233 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:52:32,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-09 05:52:32,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 241. [2024-11-09 05:52:32,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 169 states have (on average 1.698224852071006) internal successors, (287), 218 states have internal predecessors, (287), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 05:52:32,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 327 transitions. [2024-11-09 05:52:32,925 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 327 transitions. Word has length 25 [2024-11-09 05:52:32,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:32,926 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 327 transitions. [2024-11-09 05:52:32,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:32,926 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 327 transitions. [2024-11-09 05:52:32,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 05:52:32,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:32,928 INFO L215 NwaCegarLoop]: trace histogram [4, 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 05:52:32,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 05:52:33,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 05:52:33,129 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:33,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:33,129 INFO L85 PathProgramCache]: Analyzing trace with hash -363485613, now seen corresponding path program 1 times [2024-11-09 05:52:33,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:33,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515098886] [2024-11-09 05:52:33,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:33,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:52:33,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [152149674] [2024-11-09 05:52:33,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:33,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:33,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:33,146 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:33,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:52:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:33,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:52:33,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:33,314 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:52:33,314 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:52:33,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:33,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515098886] [2024-11-09 05:52:33,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:52:33,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152149674] [2024-11-09 05:52:33,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152149674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:33,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:33,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:52:33,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379944733] [2024-11-09 05:52:33,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:33,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:52:33,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:33,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:52:33,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:52:33,320 INFO L87 Difference]: Start difference. First operand 241 states and 327 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:33,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:33,957 INFO L93 Difference]: Finished difference Result 267 states and 332 transitions. [2024-11-09 05:52:33,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:52:33,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2024-11-09 05:52:33,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:33,959 INFO L225 Difference]: With dead ends: 267 [2024-11-09 05:52:33,959 INFO L226 Difference]: Without dead ends: 266 [2024-11-09 05:52:33,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 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 05:52:33,960 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 57 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:33,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 307 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:52:33,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-09 05:52:33,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 241. [2024-11-09 05:52:33,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 169 states have (on average 1.6863905325443787) internal successors, (285), 218 states have internal predecessors, (285), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 05:52:33,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 325 transitions. [2024-11-09 05:52:33,978 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 325 transitions. Word has length 26 [2024-11-09 05:52:33,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:33,978 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 325 transitions. [2024-11-09 05:52:33,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:33,979 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 325 transitions. [2024-11-09 05:52:33,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 05:52:33,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:33,980 INFO L215 NwaCegarLoop]: trace histogram [4, 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 05:52:34,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 05:52:34,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:34,184 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:34,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:34,185 INFO L85 PathProgramCache]: Analyzing trace with hash -824120735, now seen corresponding path program 1 times [2024-11-09 05:52:34,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:34,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360838493] [2024-11-09 05:52:34,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:34,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:34,353 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:52:34,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:34,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360838493] [2024-11-09 05:52:34,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360838493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:34,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:34,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:52:34,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033771353] [2024-11-09 05:52:34,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:34,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:52:34,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:34,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:52:34,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:52:34,356 INFO L87 Difference]: Start difference. First operand 241 states and 325 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:34,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:34,639 INFO L93 Difference]: Finished difference Result 270 states and 335 transitions. [2024-11-09 05:52:34,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:52:34,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 27 [2024-11-09 05:52:34,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:34,641 INFO L225 Difference]: With dead ends: 270 [2024-11-09 05:52:34,641 INFO L226 Difference]: Without dead ends: 269 [2024-11-09 05:52:34,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:52:34,642 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 56 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:34,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 336 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:52:34,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-09 05:52:34,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 246. [2024-11-09 05:52:34,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 174 states have (on average 1.6781609195402298) internal successors, (292), 223 states have internal predecessors, (292), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 05:52:34,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 332 transitions. [2024-11-09 05:52:34,661 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 332 transitions. Word has length 27 [2024-11-09 05:52:34,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:34,662 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 332 transitions. [2024-11-09 05:52:34,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:34,662 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 332 transitions. [2024-11-09 05:52:34,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 05:52:34,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:34,663 INFO L215 NwaCegarLoop]: trace histogram [4, 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 05:52:34,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 05:52:34,664 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:34,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:34,664 INFO L85 PathProgramCache]: Analyzing trace with hash 222061151, now seen corresponding path program 1 times [2024-11-09 05:52:34,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:34,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334698290] [2024-11-09 05:52:34,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:34,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:52:34,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [626552307] [2024-11-09 05:52:34,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:34,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:34,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:34,691 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:34,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 05:52:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:34,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:52:34,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:34,827 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:52:34,827 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:52:34,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:34,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334698290] [2024-11-09 05:52:34,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:52:34,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626552307] [2024-11-09 05:52:34,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626552307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:34,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:34,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:52:34,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446812214] [2024-11-09 05:52:34,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:34,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:52:34,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:34,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:52:34,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:52:34,830 INFO L87 Difference]: Start difference. First operand 246 states and 332 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:35,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:35,112 INFO L93 Difference]: Finished difference Result 287 states and 343 transitions. [2024-11-09 05:52:35,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:52:35,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2024-11-09 05:52:35,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:35,114 INFO L225 Difference]: With dead ends: 287 [2024-11-09 05:52:35,114 INFO L226 Difference]: Without dead ends: 286 [2024-11-09 05:52:35,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:52:35,115 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 153 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:35,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 336 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:52:35,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-09 05:52:35,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 248. [2024-11-09 05:52:35,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 176 states have (on average 1.6704545454545454) internal successors, (294), 225 states have internal predecessors, (294), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 05:52:35,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 334 transitions. [2024-11-09 05:52:35,132 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 334 transitions. Word has length 28 [2024-11-09 05:52:35,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:35,132 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 334 transitions. [2024-11-09 05:52:35,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:52:35,133 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 334 transitions. [2024-11-09 05:52:35,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 05:52:35,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:35,139 INFO L215 NwaCegarLoop]: trace histogram [4, 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 05:52:35,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 05:52:35,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 05:52:35,339 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:35,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:35,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1174159491, now seen corresponding path program 1 times [2024-11-09 05:52:35,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:35,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899006618] [2024-11-09 05:52:35,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:35,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:35,467 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 05:52:35,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:35,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899006618] [2024-11-09 05:52:35,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899006618] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:52:35,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456240891] [2024-11-09 05:52:35,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:35,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:35,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:35,470 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:35,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 05:52:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:35,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:52:35,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:35,599 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:52:35,600 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:52:35,805 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:52:35,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456240891] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:52:35,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1303851734] [2024-11-09 05:52:35,836 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 05:52:35,836 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:52:35,839 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:52:35,845 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:52:35,845 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:52:36,930 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:52:36,935 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:52:39,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1303851734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:39,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:52:39,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [7, 5, 5] total 27 [2024-11-09 05:52:39,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292345140] [2024-11-09 05:52:39,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:39,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 05:52:39,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:39,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 05:52:39,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=553, Unknown=0, NotChecked=0, Total=702 [2024-11-09 05:52:39,067 INFO L87 Difference]: Start difference. First operand 248 states and 334 transitions. Second operand has 15 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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 05:52:40,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:40,677 INFO L93 Difference]: Finished difference Result 394 states and 516 transitions. [2024-11-09 05:52:40,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:52:40,678 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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 31 [2024-11-09 05:52:40,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:40,681 INFO L225 Difference]: With dead ends: 394 [2024-11-09 05:52:40,681 INFO L226 Difference]: Without dead ends: 348 [2024-11-09 05:52:40,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2024-11-09 05:52:40,683 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 438 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:40,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 150 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 05:52:40,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-09 05:52:40,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 318. [2024-11-09 05:52:40,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 238 states have (on average 1.5714285714285714) internal successors, (374), 287 states have internal predecessors, (374), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-09 05:52:40,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 430 transitions. [2024-11-09 05:52:40,725 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 430 transitions. Word has length 31 [2024-11-09 05:52:40,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:40,725 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 430 transitions. [2024-11-09 05:52:40,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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 05:52:40,726 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 430 transitions. [2024-11-09 05:52:40,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 05:52:40,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:40,728 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:52:40,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 05:52:40,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:40,933 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:40,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:40,934 INFO L85 PathProgramCache]: Analyzing trace with hash -583317047, now seen corresponding path program 1 times [2024-11-09 05:52:40,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:40,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496655991] [2024-11-09 05:52:40,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:40,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:52:40,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1628169329] [2024-11-09 05:52:40,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:40,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:40,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:40,967 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:40,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 05:52:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:41,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:52:41,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:41,183 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:52:41,184 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:52:41,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:41,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496655991] [2024-11-09 05:52:41,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:52:41,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628169329] [2024-11-09 05:52:41,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628169329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:41,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:41,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:52:41,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774942330] [2024-11-09 05:52:41,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:41,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:52:41,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:41,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:52:41,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:52:41,190 INFO L87 Difference]: Start difference. First operand 318 states and 430 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 05:52:41,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:41,790 INFO L93 Difference]: Finished difference Result 396 states and 521 transitions. [2024-11-09 05:52:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:52:41,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 46 [2024-11-09 05:52:41,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:41,793 INFO L225 Difference]: With dead ends: 396 [2024-11-09 05:52:41,793 INFO L226 Difference]: Without dead ends: 393 [2024-11-09 05:52:41,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:52:41,795 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 218 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:41,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 184 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:52:41,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-09 05:52:41,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 374. [2024-11-09 05:52:41,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 286 states have (on average 1.5174825174825175) internal successors, (434), 335 states have internal predecessors, (434), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 05:52:41,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 506 transitions. [2024-11-09 05:52:41,852 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 506 transitions. Word has length 46 [2024-11-09 05:52:41,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:41,852 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 506 transitions. [2024-11-09 05:52:41,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 05:52:41,853 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 506 transitions. [2024-11-09 05:52:41,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 05:52:41,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:41,854 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:52:41,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 05:52:42,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:42,058 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:42,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:42,058 INFO L85 PathProgramCache]: Analyzing trace with hash -902959162, now seen corresponding path program 1 times [2024-11-09 05:52:42,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:42,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880233700] [2024-11-09 05:52:42,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:42,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:52:42,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2065365821] [2024-11-09 05:52:42,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:42,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:42,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:42,078 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:42,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 05:52:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:42,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:52:42,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:42,291 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:52:42,291 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:52:42,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:42,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880233700] [2024-11-09 05:52:42,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:52:42,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065365821] [2024-11-09 05:52:42,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065365821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:42,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:42,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:52:42,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025703473] [2024-11-09 05:52:42,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:42,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:52:42,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:42,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:52:42,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:52:42,296 INFO L87 Difference]: Start difference. First operand 374 states and 506 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 05:52:42,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:42,826 INFO L93 Difference]: Finished difference Result 394 states and 515 transitions. [2024-11-09 05:52:42,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:52:42,826 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), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 47 [2024-11-09 05:52:42,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:42,829 INFO L225 Difference]: With dead ends: 394 [2024-11-09 05:52:42,829 INFO L226 Difference]: Without dead ends: 393 [2024-11-09 05:52:42,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:52:42,830 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 213 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:42,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 187 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:52:42,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-09 05:52:42,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 374. [2024-11-09 05:52:42,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 286 states have (on average 1.5104895104895104) internal successors, (432), 335 states have internal predecessors, (432), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 05:52:42,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 504 transitions. [2024-11-09 05:52:42,888 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 504 transitions. Word has length 47 [2024-11-09 05:52:42,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:42,888 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 504 transitions. [2024-11-09 05:52:42,888 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), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 05:52:42,888 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 504 transitions. [2024-11-09 05:52:42,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 05:52:42,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:42,889 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:52:42,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 05:52:43,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:43,090 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:43,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:43,091 INFO L85 PathProgramCache]: Analyzing trace with hash 519128955, now seen corresponding path program 1 times [2024-11-09 05:52:43,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:43,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761646741] [2024-11-09 05:52:43,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:43,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:43,191 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:52:43,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:43,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761646741] [2024-11-09 05:52:43,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761646741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:43,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:43,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:52:43,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795522249] [2024-11-09 05:52:43,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:43,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:52:43,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:43,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:52:43,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:52:43,194 INFO L87 Difference]: Start difference. First operand 374 states and 504 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:52:44,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:44,021 INFO L93 Difference]: Finished difference Result 397 states and 517 transitions. [2024-11-09 05:52:44,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:52:44,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 51 [2024-11-09 05:52:44,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:44,025 INFO L225 Difference]: With dead ends: 397 [2024-11-09 05:52:44,025 INFO L226 Difference]: Without dead ends: 395 [2024-11-09 05:52:44,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:52:44,026 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 229 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:44,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 249 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:52:44,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-09 05:52:44,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 376. [2024-11-09 05:52:44,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 288 states have (on average 1.5) internal successors, (432), 337 states have internal predecessors, (432), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 05:52:44,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 504 transitions. [2024-11-09 05:52:44,087 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 504 transitions. Word has length 51 [2024-11-09 05:52:44,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:44,087 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 504 transitions. [2024-11-09 05:52:44,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:52:44,087 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 504 transitions. [2024-11-09 05:52:44,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 05:52:44,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:44,088 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:52:44,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 05:52:44,089 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:44,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:44,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1086871463, now seen corresponding path program 1 times [2024-11-09 05:52:44,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:44,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693567431] [2024-11-09 05:52:44,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:44,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:44,253 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:52:44,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:44,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693567431] [2024-11-09 05:52:44,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693567431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:44,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:44,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:52:44,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205031671] [2024-11-09 05:52:44,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:44,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:52:44,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:44,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:52:44,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:52:44,256 INFO L87 Difference]: Start difference. First operand 376 states and 504 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:52:44,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:44,775 INFO L93 Difference]: Finished difference Result 406 states and 513 transitions. [2024-11-09 05:52:44,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:52:44,776 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), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2024-11-09 05:52:44,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:44,778 INFO L225 Difference]: With dead ends: 406 [2024-11-09 05:52:44,778 INFO L226 Difference]: Without dead ends: 404 [2024-11-09 05:52:44,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:52:44,779 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 316 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:44,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 384 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:52:44,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-09 05:52:44,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 376. [2024-11-09 05:52:44,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 288 states have (on average 1.4930555555555556) internal successors, (430), 337 states have internal predecessors, (430), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 05:52:44,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 502 transitions. [2024-11-09 05:52:44,829 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 502 transitions. Word has length 52 [2024-11-09 05:52:44,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:44,830 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 502 transitions. [2024-11-09 05:52:44,830 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), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:52:44,830 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 502 transitions. [2024-11-09 05:52:44,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 05:52:44,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:44,831 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:52:44,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 05:52:44,832 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:44,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:44,832 INFO L85 PathProgramCache]: Analyzing trace with hash -806419192, now seen corresponding path program 1 times [2024-11-09 05:52:44,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:44,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555644098] [2024-11-09 05:52:44,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:44,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:44,892 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:52:44,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:44,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555644098] [2024-11-09 05:52:44,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555644098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:44,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:44,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:52:44,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488747627] [2024-11-09 05:52:44,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:44,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:52:44,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:44,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:52:44,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:52:44,901 INFO L87 Difference]: Start difference. First operand 376 states and 502 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:52:45,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:45,018 INFO L93 Difference]: Finished difference Result 523 states and 723 transitions. [2024-11-09 05:52:45,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:52:45,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2024-11-09 05:52:45,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:45,022 INFO L225 Difference]: With dead ends: 523 [2024-11-09 05:52:45,022 INFO L226 Difference]: Without dead ends: 522 [2024-11-09 05:52:45,022 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 05:52:45,023 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 23 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:45,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 213 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:52:45,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-09 05:52:45,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 483. [2024-11-09 05:52:45,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 379 states have (on average 1.517150395778364) internal successors, (575), 428 states have internal predecessors, (575), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 05:52:45,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 679 transitions. [2024-11-09 05:52:45,097 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 679 transitions. Word has length 54 [2024-11-09 05:52:45,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:45,097 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 679 transitions. [2024-11-09 05:52:45,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:52:45,098 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 679 transitions. [2024-11-09 05:52:45,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 05:52:45,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:45,099 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:52:45,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 05:52:45,099 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:45,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:45,100 INFO L85 PathProgramCache]: Analyzing trace with hash 770808960, now seen corresponding path program 1 times [2024-11-09 05:52:45,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:45,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957534899] [2024-11-09 05:52:45,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:45,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:45,187 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:52:45,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:45,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957534899] [2024-11-09 05:52:45,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957534899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:45,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:45,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:52:45,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31632572] [2024-11-09 05:52:45,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:45,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:52:45,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:45,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:52:45,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:52:45,189 INFO L87 Difference]: Start difference. First operand 483 states and 679 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:52:45,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:45,847 INFO L93 Difference]: Finished difference Result 500 states and 680 transitions. [2024-11-09 05:52:45,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:52:45,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2024-11-09 05:52:45,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:45,850 INFO L225 Difference]: With dead ends: 500 [2024-11-09 05:52:45,850 INFO L226 Difference]: Without dead ends: 499 [2024-11-09 05:52:45,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:52:45,851 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 206 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:45,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 328 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:52:45,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-09 05:52:45,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 483. [2024-11-09 05:52:45,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 379 states have (on average 1.5145118733509235) internal successors, (574), 428 states have internal predecessors, (574), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 05:52:45,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 678 transitions. [2024-11-09 05:52:45,927 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 678 transitions. Word has length 55 [2024-11-09 05:52:45,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:45,927 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 678 transitions. [2024-11-09 05:52:45,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:52:45,928 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 678 transitions. [2024-11-09 05:52:45,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 05:52:45,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:45,929 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:52:45,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 05:52:45,929 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:45,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:45,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1874725878, now seen corresponding path program 1 times [2024-11-09 05:52:45,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:45,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257484425] [2024-11-09 05:52:45,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:45,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:46,026 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:52:46,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:46,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257484425] [2024-11-09 05:52:46,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257484425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:46,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:46,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:52:46,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177943705] [2024-11-09 05:52:46,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:46,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:52:46,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:46,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:52:46,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:52:46,028 INFO L87 Difference]: Start difference. First operand 483 states and 678 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:52:46,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:46,327 INFO L93 Difference]: Finished difference Result 554 states and 733 transitions. [2024-11-09 05:52:46,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:52:46,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2024-11-09 05:52:46,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:46,330 INFO L225 Difference]: With dead ends: 554 [2024-11-09 05:52:46,330 INFO L226 Difference]: Without dead ends: 550 [2024-11-09 05:52:46,331 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 05:52:46,331 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 82 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:46,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 296 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:52:46,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-09 05:52:46,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 499. [2024-11-09 05:52:46,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 395 states have (on average 1.4987341772151899) internal successors, (592), 444 states have internal predecessors, (592), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 05:52:46,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 696 transitions. [2024-11-09 05:52:46,404 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 696 transitions. Word has length 56 [2024-11-09 05:52:46,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:46,404 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 696 transitions. [2024-11-09 05:52:46,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:52:46,405 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 696 transitions. [2024-11-09 05:52:46,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 05:52:46,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:46,407 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:46,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 05:52:46,408 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:46,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:46,408 INFO L85 PathProgramCache]: Analyzing trace with hash 756491675, now seen corresponding path program 1 times [2024-11-09 05:52:46,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:46,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902726597] [2024-11-09 05:52:46,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:46,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:52:46,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1064685734] [2024-11-09 05:52:46,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:46,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:46,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:46,436 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:46,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 05:52:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:46,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:52:46,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:46,686 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:52:46,686 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:52:46,877 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:52:46,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:46,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902726597] [2024-11-09 05:52:46,877 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:52:46,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064685734] [2024-11-09 05:52:46,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064685734] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:52:46,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1968616346] [2024-11-09 05:52:46,882 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:52:46,882 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:52:46,883 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:52:46,897 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:52:46,897 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:52:49,288 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:52:49,289 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:52:49,290 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:52:54,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1968616346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:54,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:52:54,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [6, 6] total 29 [2024-11-09 05:52:54,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580986493] [2024-11-09 05:52:54,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:54,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 05:52:54,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:54,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 05:52:54,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=649, Unknown=0, NotChecked=0, Total=870 [2024-11-09 05:52:54,171 INFO L87 Difference]: Start difference. First operand 499 states and 696 transitions. Second operand has 20 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 05:52:56,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:56,711 INFO L93 Difference]: Finished difference Result 526 states and 705 transitions. [2024-11-09 05:52:56,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 05:52:56,712 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 59 [2024-11-09 05:52:56,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:56,715 INFO L225 Difference]: With dead ends: 526 [2024-11-09 05:52:56,715 INFO L226 Difference]: Without dead ends: 521 [2024-11-09 05:52:56,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 132 SyntacticMatches, 15 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=246, Invalid=684, Unknown=0, NotChecked=0, Total=930 [2024-11-09 05:52:56,716 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 536 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:56,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 194 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 05:52:56,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-09 05:52:56,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 499. [2024-11-09 05:52:56,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 395 states have (on average 1.4860759493670885) internal successors, (587), 444 states have internal predecessors, (587), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 05:52:56,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 691 transitions. [2024-11-09 05:52:56,795 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 691 transitions. Word has length 59 [2024-11-09 05:52:56,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:56,796 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 691 transitions. [2024-11-09 05:52:56,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 05:52:56,796 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 691 transitions. [2024-11-09 05:52:56,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 05:52:56,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:56,798 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:56,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 05:52:57,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:57,002 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:57,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:57,003 INFO L85 PathProgramCache]: Analyzing trace with hash -2018759957, now seen corresponding path program 1 times [2024-11-09 05:52:57,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:57,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396065637] [2024-11-09 05:52:57,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:57,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:52:57,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1802371231] [2024-11-09 05:52:57,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:57,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:57,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:57,034 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:57,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 05:52:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:57,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:52:57,107 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:57,363 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:52:57,363 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:52:57,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:57,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396065637] [2024-11-09 05:52:57,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:52:57,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802371231] [2024-11-09 05:52:57,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802371231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:57,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:57,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:52:57,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014014587] [2024-11-09 05:52:57,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:57,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:52:57,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:52:57,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:52:57,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:52:57,365 INFO L87 Difference]: Start difference. First operand 499 states and 691 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:52:57,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:57,861 INFO L93 Difference]: Finished difference Result 536 states and 709 transitions. [2024-11-09 05:52:57,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:52:57,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2024-11-09 05:52:57,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:57,865 INFO L225 Difference]: With dead ends: 536 [2024-11-09 05:52:57,865 INFO L226 Difference]: Without dead ends: 533 [2024-11-09 05:52:57,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:52:57,867 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 78 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:57,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 355 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:52:57,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-09 05:52:57,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 499. [2024-11-09 05:52:57,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 395 states have (on average 1.4759493670886077) internal successors, (583), 444 states have internal predecessors, (583), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 05:52:57,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 687 transitions. [2024-11-09 05:52:57,942 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 687 transitions. Word has length 65 [2024-11-09 05:52:57,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:57,943 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 687 transitions. [2024-11-09 05:52:57,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:52:57,943 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 687 transitions. [2024-11-09 05:52:57,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 05:52:57,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:57,944 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:57,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 05:52:58,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:58,145 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:52:58,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:58,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1842950929, now seen corresponding path program 1 times [2024-11-09 05:52:58,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:58,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199553165] [2024-11-09 05:52:58,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:58,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:52:58,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1024035993] [2024-11-09 05:52:58,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:58,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:52:58,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:58,180 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:52:58,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 05:52:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:58,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:52:58,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:58,529 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:52:58,530 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:52:59,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:52:59,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199553165] [2024-11-09 05:52:59,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:52:59,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024035993] [2024-11-09 05:52:59,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024035993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:52:59,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2017138188] [2024-11-09 05:52:59,089 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2024-11-09 05:52:59,089 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:52:59,090 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:52:59,090 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:52:59,090 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:53:01,426 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 05:53:01,430 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:53:01,434 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:53:04,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2017138188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:53:04,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:53:04,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [5] total 22 [2024-11-09 05:53:04,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501223229] [2024-11-09 05:53:04,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:53:04,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 05:53:04,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:53:04,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 05:53:04,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2024-11-09 05:53:04,167 INFO L87 Difference]: Start difference. First operand 499 states and 687 transitions. Second operand has 19 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 05:53:06,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:53:06,291 INFO L93 Difference]: Finished difference Result 819 states and 1113 transitions. [2024-11-09 05:53:06,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 05:53:06,292 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 66 [2024-11-09 05:53:06,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:53:06,295 INFO L225 Difference]: With dead ends: 819 [2024-11-09 05:53:06,295 INFO L226 Difference]: Without dead ends: 534 [2024-11-09 05:53:06,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 106 SyntacticMatches, 19 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2024-11-09 05:53:06,297 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 405 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:53:06,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 243 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 05:53:06,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-09 05:53:06,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 512. [2024-11-09 05:53:06,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 407 states have (on average 1.461916461916462) internal successors, (595), 456 states have internal predecessors, (595), 52 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 05:53:06,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 699 transitions. [2024-11-09 05:53:06,379 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 699 transitions. Word has length 66 [2024-11-09 05:53:06,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:53:06,380 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 699 transitions. [2024-11-09 05:53:06,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 05:53:06,380 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 699 transitions. [2024-11-09 05:53:06,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 05:53:06,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:53:06,381 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:53:06,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 05:53:06,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-09 05:53:06,586 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:53:06,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:53:06,586 INFO L85 PathProgramCache]: Analyzing trace with hash -756846737, now seen corresponding path program 1 times [2024-11-09 05:53:06,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:53:06,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104993093] [2024-11-09 05:53:06,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:53:06,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:53:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:53:06,657 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 05:53:06,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:53:06,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104993093] [2024-11-09 05:53:06,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104993093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:53:06,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:53:06,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:53:06,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676280699] [2024-11-09 05:53:06,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:53:06,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:53:06,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:53:06,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:53:06,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:53:06,660 INFO L87 Difference]: Start difference. First operand 512 states and 699 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 05:53:06,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:53:06,748 INFO L93 Difference]: Finished difference Result 512 states and 699 transitions. [2024-11-09 05:53:06,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:53:06,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2024-11-09 05:53:06,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:53:06,751 INFO L225 Difference]: With dead ends: 512 [2024-11-09 05:53:06,751 INFO L226 Difference]: Without dead ends: 511 [2024-11-09 05:53:06,751 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 05:53:06,752 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 5 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:53:06,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 222 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:53:06,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-09 05:53:06,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 509. [2024-11-09 05:53:06,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 405 states have (on average 1.4493827160493826) internal successors, (587), 453 states have internal predecessors, (587), 52 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 05:53:06,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 691 transitions. [2024-11-09 05:53:06,828 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 691 transitions. Word has length 69 [2024-11-09 05:53:06,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:53:06,828 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 691 transitions. [2024-11-09 05:53:06,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 05:53:06,829 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 691 transitions. [2024-11-09 05:53:06,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 05:53:06,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:53:06,830 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:53:06,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 05:53:06,830 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:53:06,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:53:06,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1987412238, now seen corresponding path program 1 times [2024-11-09 05:53:06,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:53:06,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304728892] [2024-11-09 05:53:06,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:53:06,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:53:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:53:06,876 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 05:53:06,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:53:06,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304728892] [2024-11-09 05:53:06,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304728892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:53:06,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:53:06,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:53:06,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650356872] [2024-11-09 05:53:06,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:53:06,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:53:06,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:53:06,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:53:06,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:53:06,879 INFO L87 Difference]: Start difference. First operand 509 states and 691 transitions. Second operand has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 05:53:06,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:53:06,983 INFO L93 Difference]: Finished difference Result 509 states and 691 transitions. [2024-11-09 05:53:06,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:53:06,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 70 [2024-11-09 05:53:06,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:53:06,986 INFO L225 Difference]: With dead ends: 509 [2024-11-09 05:53:06,986 INFO L226 Difference]: Without dead ends: 508 [2024-11-09 05:53:06,987 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 05:53:06,988 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 4 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:53:06,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 224 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:53:06,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-09 05:53:07,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2024-11-09 05:53:07,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 405 states have (on average 1.4370370370370371) internal successors, (582), 452 states have internal predecessors, (582), 52 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 05:53:07,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 686 transitions. [2024-11-09 05:53:07,072 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 686 transitions. Word has length 70 [2024-11-09 05:53:07,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:53:07,073 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 686 transitions. [2024-11-09 05:53:07,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 05:53:07,073 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 686 transitions. [2024-11-09 05:53:07,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 05:53:07,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:53:07,074 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:53:07,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 05:53:07,075 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:53:07,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:53:07,075 INFO L85 PathProgramCache]: Analyzing trace with hash 2129461199, now seen corresponding path program 1 times [2024-11-09 05:53:07,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:53:07,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954412611] [2024-11-09 05:53:07,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:53:07,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:53:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:53:07,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1294098222] [2024-11-09 05:53:07,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:53:07,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:53:07,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:53:07,102 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:53:07,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 05:53:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:53:07,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 05:53:07,176 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:53:07,773 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 05:53:07,774 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:53:08,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:53:08,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954412611] [2024-11-09 05:53:08,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:53:08,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294098222] [2024-11-09 05:53:08,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294098222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:53:08,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1701858378] [2024-11-09 05:53:08,158 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-09 05:53:08,158 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:53:08,159 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:53:08,159 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:53:08,159 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:54:47,665 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:54:47,666 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:54:47,667 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:54:57,629 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22693#(and (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (exists ((|v_ULTIMATE.start_main_~k~0#1_68| Int) (|v_ULTIMATE.start_main_~s~0#1_54| Int)) (and (<= (* |v_ULTIMATE.start_main_~s~0#1_54| |v_ULTIMATE.start_main_~k~0#1_68|) 9223372036854775807) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_54| |v_ULTIMATE.start_main_~k~0#1_68|))))) (exists ((|v_ULTIMATE.start_main_~p~0#1_59| Int) (|v_ULTIMATE.start_main_~x~0#1_58| Int)) (<= (+ (* |v_ULTIMATE.start_main_~x~0#1_58| |v_ULTIMATE.start_main_~p~0#1_59|) 9223372036854775809) 0)) (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~s~0#1|)) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807))' at error location [2024-11-09 05:54:57,630 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:54:57,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:54:57,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:54:57,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118052621] [2024-11-09 05:54:57,630 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:54:57,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:54:57,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:54:57,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:54:57,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=461, Invalid=2401, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 05:54:57,633 INFO L87 Difference]: Start difference. First operand 508 states and 686 transitions. Second operand has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:54:59,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:59,179 INFO L93 Difference]: Finished difference Result 684 states and 958 transitions. [2024-11-09 05:54:59,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:54:59,180 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2024-11-09 05:54:59,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:59,182 INFO L225 Difference]: With dead ends: 684 [2024-11-09 05:54:59,182 INFO L226 Difference]: Without dead ends: 682 [2024-11-09 05:54:59,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 100 SyntacticMatches, 11 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1425 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=524, Invalid=3136, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 05:54:59,184 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 390 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:54:59,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 646 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 05:54:59,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-09 05:54:59,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 638. [2024-11-09 05:54:59,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 519 states have (on average 1.510597302504817) internal successors, (784), 566 states have internal predecessors, (784), 68 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-09 05:54:59,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 920 transitions. [2024-11-09 05:54:59,272 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 920 transitions. Word has length 71 [2024-11-09 05:54:59,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:59,273 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 920 transitions. [2024-11-09 05:54:59,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:54:59,273 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 920 transitions. [2024-11-09 05:54:59,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 05:54:59,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:59,274 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:59,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 05:54:59,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 05:54:59,475 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:54:59,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:59,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1588787896, now seen corresponding path program 1 times [2024-11-09 05:54:59,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:54:59,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980258361] [2024-11-09 05:54:59,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:59,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:54:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:54:59,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1575969425] [2024-11-09 05:54:59,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:59,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:54:59,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:54:59,497 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:54:59,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 05:54:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:59,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 05:54:59,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:55:00,035 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 05:55:00,035 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:55:01,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:55:01,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980258361] [2024-11-09 05:55:01,203 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:55:01,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575969425] [2024-11-09 05:55:01,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575969425] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:55:01,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1536179174] [2024-11-09 05:55:01,206 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2024-11-09 05:55:01,206 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:55:01,206 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:55:01,207 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:55:01,207 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:56:30,444 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:56:30,445 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:56:30,446 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:56:44,174 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24571#(and (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (exists ((|v_ULTIMATE.start_main_~s~0#1_59| Int) (|v_ULTIMATE.start_main_~k~0#1_83| Int)) (and (<= (* |v_ULTIMATE.start_main_~s~0#1_59| |v_ULTIMATE.start_main_~k~0#1_83|) 9223372036854775807) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_59| |v_ULTIMATE.start_main_~k~0#1_83|))))) (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~s~0#1|)) (exists ((|v_ULTIMATE.start_main_~x~0#1_59| Int) (|v_ULTIMATE.start_main_~p~0#1_66| Int)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_59| |v_ULTIMATE.start_main_~p~0#1_66|))) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807))' at error location [2024-11-09 05:56:44,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:56:44,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:56:44,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 05:56:44,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587428197] [2024-11-09 05:56:44,175 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:56:44,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:56:44,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:56:44,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:56:44,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=472, Invalid=2498, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 05:56:44,177 INFO L87 Difference]: Start difference. First operand 638 states and 920 transitions. Second operand has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:56:45,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:56:45,810 INFO L93 Difference]: Finished difference Result 684 states and 953 transitions. [2024-11-09 05:56:45,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:56:45,811 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 72 [2024-11-09 05:56:45,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:56:45,813 INFO L225 Difference]: With dead ends: 684 [2024-11-09 05:56:45,813 INFO L226 Difference]: Without dead ends: 682 [2024-11-09 05:56:45,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 102 SyntacticMatches, 11 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1476 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=527, Invalid=3255, Unknown=0, NotChecked=0, Total=3782 [2024-11-09 05:56:45,815 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 395 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:56:45,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 575 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 05:56:45,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-09 05:56:45,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 639. [2024-11-09 05:56:45,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 520 states have (on average 1.501923076923077) internal successors, (781), 567 states have internal predecessors, (781), 68 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-09 05:56:45,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 917 transitions. [2024-11-09 05:56:45,902 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 917 transitions. Word has length 72 [2024-11-09 05:56:45,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:56:45,902 INFO L471 AbstractCegarLoop]: Abstraction has 639 states and 917 transitions. [2024-11-09 05:56:45,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:56:45,903 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 917 transitions. [2024-11-09 05:56:45,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 05:56:45,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:56:45,904 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:56:45,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 05:56:46,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 05:56:46,108 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:56:46,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:56:46,109 INFO L85 PathProgramCache]: Analyzing trace with hash 2007784689, now seen corresponding path program 1 times [2024-11-09 05:56:46,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:56:46,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685350880] [2024-11-09 05:56:46,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:56:46,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:56:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:56:46,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1894960298] [2024-11-09 05:56:46,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:56:46,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:56:46,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:56:46,139 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:56:46,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 05:56:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:56:46,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 05:56:46,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:56:47,016 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 05:56:47,016 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:56:49,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:56:49,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685350880] [2024-11-09 05:56:49,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:56:49,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894960298] [2024-11-09 05:56:49,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894960298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:56:49,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [83583605] [2024-11-09 05:56:49,460 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2024-11-09 05:56:49,461 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:56:49,461 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:56:49,461 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:56:49,461 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:58:28,470 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 05:58:28,471 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:58:28,471 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:58:43,815 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '26459#(and (exists ((|v_ULTIMATE.start_main_~s~0#1_64| Int) (|v_ULTIMATE.start_main_~k~0#1_98| Int)) (and (<= (* |v_ULTIMATE.start_main_~s~0#1_64| |v_ULTIMATE.start_main_~k~0#1_98|) 9223372036854775807) (<= 0 (+ (* |v_ULTIMATE.start_main_~s~0#1_64| |v_ULTIMATE.start_main_~k~0#1_98|) 9223372036854775808)))) (exists ((|v_ULTIMATE.start_main_~q~0#1_74| Int) (|v_ULTIMATE.start_main_~x~0#1_60| Int)) (and (<= 0 (+ (* |v_ULTIMATE.start_main_~x~0#1_60| |ULTIMATE.start_main_~p~0#1|) 9223372036854775808)) (<= |v_ULTIMATE.start_main_~q~0#1_74| 9223372036854775807) (<= (* |v_ULTIMATE.start_main_~x~0#1_60| |ULTIMATE.start_main_~p~0#1|) 9223372036854775807) (<= (+ (* |v_ULTIMATE.start_main_~x~0#1_60| |v_ULTIMATE.start_main_~q~0#1_74|) 9223372036854775809) 0) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_74| 9223372036854775808)))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~s~0#1|)) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807))' at error location [2024-11-09 05:58:43,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:58:43,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:58:43,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 05:58:43,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290953716] [2024-11-09 05:58:43,816 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:58:43,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:58:43,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:43,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:58:43,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=519, Invalid=2902, Unknown=1, NotChecked=0, Total=3422 [2024-11-09 05:58:43,818 INFO L87 Difference]: Start difference. First operand 639 states and 917 transitions. Second operand has 12 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:58:45,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:45,663 INFO L93 Difference]: Finished difference Result 684 states and 948 transitions. [2024-11-09 05:58:45,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:58:45,663 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 73 [2024-11-09 05:58:45,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:45,667 INFO L225 Difference]: With dead ends: 684 [2024-11-09 05:58:45,667 INFO L226 Difference]: Without dead ends: 682 [2024-11-09 05:58:45,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 105 SyntacticMatches, 7 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1513 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=597, Invalid=3824, Unknown=1, NotChecked=0, Total=4422 [2024-11-09 05:58:45,671 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 391 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:45,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 656 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 05:58:45,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-09 05:58:45,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 640. [2024-11-09 05:58:45,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 521 states have (on average 1.493282149712092) internal successors, (778), 568 states have internal predecessors, (778), 68 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-09 05:58:45,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 914 transitions. [2024-11-09 05:58:45,766 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 914 transitions. Word has length 73 [2024-11-09 05:58:45,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:45,766 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 914 transitions. [2024-11-09 05:58:45,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:58:45,767 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 914 transitions. [2024-11-09 05:58:45,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 05:58:45,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:45,768 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:45,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-09 05:58:45,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 05:58:45,969 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 05:58:45,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:45,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1492283221, now seen corresponding path program 1 times [2024-11-09 05:58:45,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:45,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359918070] [2024-11-09 05:58:45,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:45,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:58:45,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1135579718] [2024-11-09 05:58:45,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:45,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:58:45,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:45,996 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:58:45,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 05:58:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:46,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:58:46,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:46,302 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:58:46,302 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:58:46,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:46,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359918070] [2024-11-09 05:58:46,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:58:46,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135579718] [2024-11-09 05:58:46,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135579718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:58:46,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [812821314] [2024-11-09 05:58:46,385 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2024-11-09 05:58:46,385 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:58:46,385 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:58:46,385 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:58:46,385 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:00:25,458 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:00:25,463 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:00:25,464 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:00:33,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [812821314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:00:33,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:00:33,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [7] total 45 [2024-11-09 06:00:33,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626385643] [2024-11-09 06:00:33,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:00:33,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-09 06:00:33,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:00:33,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-09 06:00:33,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=416, Invalid=1840, Unknown=0, NotChecked=0, Total=2256 [2024-11-09 06:00:33,710 INFO L87 Difference]: Start difference. First operand 640 states and 914 transitions. Second operand has 40 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 32 states have internal predecessors, (46), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:00:42,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:00:42,296 INFO L93 Difference]: Finished difference Result 1215 states and 1755 transitions. [2024-11-09 06:00:42,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-09 06:00:42,297 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 32 states have internal predecessors, (46), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 74 [2024-11-09 06:00:42,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:00:42,300 INFO L225 Difference]: With dead ends: 1215 [2024-11-09 06:00:42,300 INFO L226 Difference]: Without dead ends: 880 [2024-11-09 06:00:42,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 107 SyntacticMatches, 8 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2274 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=1555, Invalid=5585, Unknown=0, NotChecked=0, Total=7140 [2024-11-09 06:00:42,304 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 1019 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:00:42,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 279 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 06:00:42,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2024-11-09 06:00:42,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 677. [2024-11-09 06:00:42,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 554 states have (on average 1.4855595667870036) internal successors, (823), 601 states have internal predecessors, (823), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-09 06:00:42,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 967 transitions. [2024-11-09 06:00:42,414 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 967 transitions. Word has length 74 [2024-11-09 06:00:42,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:00:42,414 INFO L471 AbstractCegarLoop]: Abstraction has 677 states and 967 transitions. [2024-11-09 06:00:42,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 32 states have internal predecessors, (46), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:00:42,414 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 967 transitions. [2024-11-09 06:00:42,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 06:00:42,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:00:42,416 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:00:42,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-09 06:00:42,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:00:42,620 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:00:42,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:00:42,622 INFO L85 PathProgramCache]: Analyzing trace with hash 2111783386, now seen corresponding path program 1 times [2024-11-09 06:00:42,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:00:42,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218806148] [2024-11-09 06:00:42,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:00:42,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:00:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:00:42,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975306804] [2024-11-09 06:00:42,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:00:42,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:00:42,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:00:42,646 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:00:42,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 06:00:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:00:42,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 06:00:42,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:00:43,301 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 06:00:43,301 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:00:44,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:00:44,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218806148] [2024-11-09 06:00:44,755 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:00:44,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975306804] [2024-11-09 06:00:44,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975306804] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:00:44,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1505937989] [2024-11-09 06:00:44,758 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2024-11-09 06:00:44,758 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:00:44,758 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:00:44,758 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:00:44,758 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:02:07,776 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:02:07,777 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:02:07,777 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:02:24,457 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '30918#(and (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~s~0#1|)) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~s~0#1_73| Int) (|v_ULTIMATE.start_main_~k~0#1_130| Int)) (and (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~s~0#1_73| |v_ULTIMATE.start_main_~k~0#1_130|))) (<= (* |v_ULTIMATE.start_main_~s~0#1_73| |v_ULTIMATE.start_main_~k~0#1_130|) 9223372036854775807))) (exists ((|v_ULTIMATE.start_main_~q~0#1_87| Int) (|v_ULTIMATE.start_main_~x~0#1_61| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_87| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_61| |v_ULTIMATE.start_main_~q~0#1_87|)) (<= (* |v_ULTIMATE.start_main_~x~0#1_61| |ULTIMATE.start_main_~p~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_61| |ULTIMATE.start_main_~p~0#1|))) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_87| 9223372036854775808)))))' at error location [2024-11-09 06:02:24,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:02:24,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:02:24,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 06:02:24,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439655478] [2024-11-09 06:02:24,458 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:02:24,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:02:24,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:02:24,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:02:24,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=545, Invalid=2995, Unknown=0, NotChecked=0, Total=3540 [2024-11-09 06:02:24,460 INFO L87 Difference]: Start difference. First operand 677 states and 967 transitions. Second operand has 12 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:02:25,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:02:25,954 INFO L93 Difference]: Finished difference Result 727 states and 1002 transitions. [2024-11-09 06:02:25,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:02:25,955 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 74 [2024-11-09 06:02:25,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:02:25,958 INFO L225 Difference]: With dead ends: 727 [2024-11-09 06:02:25,958 INFO L226 Difference]: Without dead ends: 725 [2024-11-09 06:02:25,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 107 SyntacticMatches, 7 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1710 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=648, Invalid=4044, Unknown=0, NotChecked=0, Total=4692 [2024-11-09 06:02:25,960 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 389 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:02:25,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 577 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 06:02:25,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-09 06:02:26,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 678. [2024-11-09 06:02:26,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 555 states have (on average 1.4774774774774775) internal successors, (820), 602 states have internal predecessors, (820), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-09 06:02:26,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 964 transitions. [2024-11-09 06:02:26,069 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 964 transitions. Word has length 74 [2024-11-09 06:02:26,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:02:26,069 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 964 transitions. [2024-11-09 06:02:26,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:02:26,069 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 964 transitions. [2024-11-09 06:02:26,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 06:02:26,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:02:26,071 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:02:26,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-09 06:02:26,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:02:26,271 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:02:26,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:02:26,272 INFO L85 PathProgramCache]: Analyzing trace with hash 2110370495, now seen corresponding path program 1 times [2024-11-09 06:02:26,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:02:26,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353813357] [2024-11-09 06:02:26,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:26,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:02:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:02:26,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1052087600] [2024-11-09 06:02:26,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:26,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:02:26,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:02:26,299 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:02:26,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 06:02:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:26,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 06:02:26,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:26,903 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 06:02:26,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:02:27,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:02:27,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353813357] [2024-11-09 06:02:27,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:02:27,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052087600] [2024-11-09 06:02:27,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052087600] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:02:27,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1735619913] [2024-11-09 06:02:27,283 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2024-11-09 06:02:27,283 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:02:27,284 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:02:27,284 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:02:27,284 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:03:51,517 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:03:51,518 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:03:51,519 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:04:03,325 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32918#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (= |ULTIMATE.start_main_~d~0#1| 1) (<= |ULTIMATE.start_main_~k~0#1| 1) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~s~0#1|)) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~r~0#1_76| Int) (|v_ULTIMATE.start_main_~y~0#1_55| Int)) (<= (+ (* |v_ULTIMATE.start_main_~y~0#1_55| |v_ULTIMATE.start_main_~r~0#1_76|) 9223372036854775809) 0)))' at error location [2024-11-09 06:04:03,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:04:03,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:04:03,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 06:04:03,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62551762] [2024-11-09 06:04:03,326 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:04:03,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:04:03,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:04:03,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:04:03,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=497, Invalid=2695, Unknown=0, NotChecked=0, Total=3192 [2024-11-09 06:04:03,327 INFO L87 Difference]: Start difference. First operand 678 states and 964 transitions. Second operand has 12 states, 10 states have (on average 5.3) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:04:04,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:04:04,958 INFO L93 Difference]: Finished difference Result 726 states and 992 transitions. [2024-11-09 06:04:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:04:04,959 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.3) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 74 [2024-11-09 06:04:04,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:04:04,961 INFO L225 Difference]: With dead ends: 726 [2024-11-09 06:04:04,961 INFO L226 Difference]: Without dead ends: 725 [2024-11-09 06:04:04,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 111 SyntacticMatches, 6 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1474 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=584, Invalid=3838, Unknown=0, NotChecked=0, Total=4422 [2024-11-09 06:04:04,962 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 414 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:04:04,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 689 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 06:04:04,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-09 06:04:05,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 678. [2024-11-09 06:04:05,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 555 states have (on average 1.4702702702702704) internal successors, (816), 602 states have internal predecessors, (816), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-09 06:04:05,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 960 transitions. [2024-11-09 06:04:05,076 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 960 transitions. Word has length 74 [2024-11-09 06:04:05,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:04:05,076 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 960 transitions. [2024-11-09 06:04:05,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.3) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:04:05,076 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 960 transitions. [2024-11-09 06:04:05,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 06:04:05,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:04:05,078 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:04:05,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-09 06:04:05,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-09 06:04:05,282 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:04:05,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:04:05,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1040775699, now seen corresponding path program 1 times [2024-11-09 06:04:05,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:04:05,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331020815] [2024-11-09 06:04:05,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:04:05,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:04:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:04:05,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2144581977] [2024-11-09 06:04:05,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:04:05,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:04:05,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:04:05,310 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:04:05,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 06:04:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:04:05,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 06:04:05,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:04:05,954 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 06:04:05,954 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:04:09,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:04:09,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331020815] [2024-11-09 06:04:09,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:04:09,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144581977] [2024-11-09 06:04:09,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144581977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:04:09,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [817087965] [2024-11-09 06:04:09,057 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-09 06:04:09,057 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:04:09,058 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:04:09,058 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:04:09,058 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:05:30,680 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:05:30,681 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:05:30,682 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:05:46,371 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '34920#(and (exists ((|v_ULTIMATE.start_main_~k~0#1_161| Int) (|v_ULTIMATE.start_main_~s~0#1_83| Int)) (and (<= 0 (+ (* |v_ULTIMATE.start_main_~s~0#1_83| |v_ULTIMATE.start_main_~k~0#1_161|) 9223372036854775808)) (<= (* |v_ULTIMATE.start_main_~s~0#1_83| |v_ULTIMATE.start_main_~k~0#1_161|) 9223372036854775807))) (exists ((|v_ULTIMATE.start_main_~p~0#1_99| Int) (|v_ULTIMATE.start_main_~x~0#1_62| Int) (|v_ULTIMATE.start_main_~q~0#1_99| Int)) (and (<= (* |v_ULTIMATE.start_main_~x~0#1_62| |v_ULTIMATE.start_main_~q~0#1_99|) 9223372036854775807) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~x~0#1_62| |v_ULTIMATE.start_main_~p~0#1_99|)) (* |v_ULTIMATE.start_main_~x~0#1_62| |v_ULTIMATE.start_main_~q~0#1_99|)) (<= 0 (+ (* |v_ULTIMATE.start_main_~x~0#1_62| |v_ULTIMATE.start_main_~p~0#1_99|) 9223372036854775808)))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~s~0#1|)) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807))' at error location [2024-11-09 06:05:46,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:05:46,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:05:46,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 06:05:46,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329528686] [2024-11-09 06:05:46,372 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:05:46,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:05:46,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:05:46,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:05:46,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=546, Invalid=2875, Unknown=1, NotChecked=0, Total=3422 [2024-11-09 06:05:46,374 INFO L87 Difference]: Start difference. First operand 678 states and 960 transitions. Second operand has 11 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:05:47,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:05:47,633 INFO L93 Difference]: Finished difference Result 862 states and 1177 transitions. [2024-11-09 06:05:47,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:05:47,633 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 75 [2024-11-09 06:05:47,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:05:47,637 INFO L225 Difference]: With dead ends: 862 [2024-11-09 06:05:47,637 INFO L226 Difference]: Without dead ends: 860 [2024-11-09 06:05:47,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 111 SyntacticMatches, 7 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1513 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=614, Invalid=3807, Unknown=1, NotChecked=0, Total=4422 [2024-11-09 06:05:47,638 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 480 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:05:47,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 415 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:05:47,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2024-11-09 06:05:47,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 680. [2024-11-09 06:05:47,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 557 states have (on average 1.4685816876122082) internal successors, (818), 604 states have internal predecessors, (818), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-09 06:05:47,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 962 transitions. [2024-11-09 06:05:47,766 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 962 transitions. Word has length 75 [2024-11-09 06:05:47,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:05:47,767 INFO L471 AbstractCegarLoop]: Abstraction has 680 states and 962 transitions. [2024-11-09 06:05:47,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:05:47,767 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 962 transitions. [2024-11-09 06:05:47,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 06:05:47,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:05:47,768 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:05:47,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-09 06:05:47,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-09 06:05:47,973 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-09 06:05:47,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:05:47,973 INFO L85 PathProgramCache]: Analyzing trace with hash 996975981, now seen corresponding path program 1 times [2024-11-09 06:05:47,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:05:47,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606082430] [2024-11-09 06:05:47,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:05:47,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:05:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:05:47,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [389745193] [2024-11-09 06:05:48,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:05:48,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:05:48,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:05:48,004 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:05:48,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_834c708c-8efc-4e49-a025-8b81f7f667e4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 06:05:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:05:48,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 06:05:48,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:05:48,638 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 06:05:48,638 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:05:50,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:05:50,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606082430] [2024-11-09 06:05:50,336 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:05:50,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389745193] [2024-11-09 06:05:50,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389745193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:05:50,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [157758440] [2024-11-09 06:05:50,338 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2024-11-09 06:05:50,339 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:05:50,339 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:05:50,339 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:05:50,339 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs