./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll2_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/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_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll2_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/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_bbc07225-85a6-407f-9677-ff1ce1d47e55/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 6c3a02723ba5c1d451bdbd3459a030afd92ce200d85c0df9c54e7e40eb695af7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:25:09,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:25:09,507 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 07:25:09,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:25:09,518 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:25:09,569 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:25:09,573 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:25:09,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:25:09,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:25:09,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:25:09,576 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:25:09,576 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:25:09,577 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:25:09,578 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:25:09,582 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:25:09,582 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:25:09,583 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:25:09,583 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:25:09,583 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:25:09,584 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:25:09,584 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:25:09,589 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:25:09,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:25:09,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:25:09,591 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:25:09,591 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:25:09,591 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:25:09,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:25:09,592 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:25:09,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:25:09,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:25:09,593 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:25:09,594 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:25:09,594 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:25:09,594 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:25:09,595 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:25:09,595 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:25:09,600 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:25:09,600 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:25:09,601 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:25:09,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:25:09,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:25:09,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:25:09,604 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:25:09,604 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:25:09,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:25:09,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:25:09,605 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:25:09,605 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:25:09,605 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_bbc07225-85a6-407f-9677-ff1ce1d47e55/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c3a02723ba5c1d451bdbd3459a030afd92ce200d85c0df9c54e7e40eb695af7 [2024-11-09 07:25:09,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:25:09,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:25:09,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:25:09,972 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:25:09,974 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:25:09,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll2_valuebound20.c Unable to find full path for "g++" [2024-11-09 07:25:12,332 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:25:12,565 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:25:12,566 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/sv-benchmarks/c/nla-digbench-scaling/geo3-ll2_valuebound20.c [2024-11-09 07:25:12,575 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/data/d90215236/9547cdad6b7f45868350158a34da8c8d/FLAG7d75de4d7 [2024-11-09 07:25:12,912 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/data/d90215236/9547cdad6b7f45868350158a34da8c8d [2024-11-09 07:25:12,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:25:12,917 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:25:12,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:25:12,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:25:12,927 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:25:12,928 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:25:12" (1/1) ... [2024-11-09 07:25:12,929 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18e0b4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:12, skipping insertion in model container [2024-11-09 07:25:12,930 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:25:12" (1/1) ... [2024-11-09 07:25:12,955 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:25:13,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:25:13,255 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:25:13,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:25:13,303 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:25:13,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:13 WrapperNode [2024-11-09 07:25:13,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:25:13,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:25:13,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:25:13,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:25:13,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:13" (1/1) ... [2024-11-09 07:25:13,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:13" (1/1) ... [2024-11-09 07:25:13,346 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2024-11-09 07:25:13,347 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:25:13,348 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:25:13,348 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:25:13,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:25:13,361 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:13" (1/1) ... [2024-11-09 07:25:13,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:13" (1/1) ... [2024-11-09 07:25:13,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:13" (1/1) ... [2024-11-09 07:25:13,364 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:13" (1/1) ... [2024-11-09 07:25:13,368 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:13" (1/1) ... [2024-11-09 07:25:13,372 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:13" (1/1) ... [2024-11-09 07:25:13,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:13" (1/1) ... [2024-11-09 07:25:13,375 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:13" (1/1) ... [2024-11-09 07:25:13,378 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:25:13,379 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:25:13,379 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:25:13,379 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:25:13,380 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:13" (1/1) ... [2024-11-09 07:25:13,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:25:13,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:13,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:25:13,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:25:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:25:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:25:13,472 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:25:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:25:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:25:13,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:25:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 07:25:13,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 07:25:13,578 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:25:13,580 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:25:14,153 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-09 07:25:14,154 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:25:14,247 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:25:14,247 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 07:25:14,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:25:14 BoogieIcfgContainer [2024-11-09 07:25:14,248 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:25:14,255 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:25:14,255 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:25:14,259 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:25:14,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:25:12" (1/3) ... [2024-11-09 07:25:14,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d44601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:25:14, skipping insertion in model container [2024-11-09 07:25:14,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:13" (2/3) ... [2024-11-09 07:25:14,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d44601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:25:14, skipping insertion in model container [2024-11-09 07:25:14,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:25:14" (3/3) ... [2024-11-09 07:25:14,263 INFO L112 eAbstractionObserver]: Analyzing ICFG geo3-ll2_valuebound20.c [2024-11-09 07:25:14,286 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:25:14,288 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-11-09 07:25:14,381 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:25:14,388 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;@70cc4b6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:25:14,388 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-09 07:25:14,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 39 states have (on average 1.8205128205128205) internal successors, (71), 69 states have internal predecessors, (71), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:25:14,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 07:25:14,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:14,406 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:25:14,407 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:25:14,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:14,416 INFO L85 PathProgramCache]: Analyzing trace with hash 948130535, now seen corresponding path program 1 times [2024-11-09 07:25:14,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:14,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780763741] [2024-11-09 07:25:14,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:14,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:25:14,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [17458086] [2024-11-09 07:25:14,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:14,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:14,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:14,589 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:14,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:25:14,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:14,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:25:14,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:15,005 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:25:15,005 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:25:15,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:15,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780763741] [2024-11-09 07:25:15,162 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:25:15,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17458086] [2024-11-09 07:25:15,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17458086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:25:15,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1260459998] [2024-11-09 07:25:15,190 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 07:25:15,190 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:25:15,195 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:25:15,200 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:25:15,201 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:25:16,035 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:25:16,038 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:25:16,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1260459998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:16,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:25:16,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4] total 13 [2024-11-09 07:25:16,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086628878] [2024-11-09 07:25:16,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:16,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 07:25:16,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:16,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 07:25:16,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2024-11-09 07:25:16,792 INFO L87 Difference]: Start difference. First operand has 77 states, 39 states have (on average 1.8205128205128205) internal successors, (71), 69 states have internal predecessors, (71), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 11 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:25:17,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:17,397 INFO L93 Difference]: Finished difference Result 125 states and 135 transitions. [2024-11-09 07:25:17,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 07:25:17,401 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 14 [2024-11-09 07:25:17,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:17,411 INFO L225 Difference]: With dead ends: 125 [2024-11-09 07:25:17,411 INFO L226 Difference]: Without dead ends: 87 [2024-11-09 07:25:17,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2024-11-09 07:25:17,419 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 139 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:17,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 32 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 07:25:17,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-09 07:25:17,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-09 07:25:17,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 52 states have (on average 1.6346153846153846) internal successors, (85), 79 states have internal predecessors, (85), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:25:17,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2024-11-09 07:25:17,483 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 14 [2024-11-09 07:25:17,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:17,486 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2024-11-09 07:25:17,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:25:17,487 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2024-11-09 07:25:17,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 07:25:17,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:17,488 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:25:17,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 07:25:17,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 07:25:17,695 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:25:17,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:17,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1521295403, now seen corresponding path program 1 times [2024-11-09 07:25:17,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:17,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179676791] [2024-11-09 07:25:17,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:17,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:25:17,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1572150699] [2024-11-09 07:25:17,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:17,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:17,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:17,730 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:17,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:25:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:17,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:25:17,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:18,134 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:25:18,135 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:25:18,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:18,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179676791] [2024-11-09 07:25:18,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:25:18,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572150699] [2024-11-09 07:25:18,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572150699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:18,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:18,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:25:18,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603090461] [2024-11-09 07:25:18,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:18,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:25:18,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:18,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:25:18,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:25:18,140 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:25:18,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:18,601 INFO L93 Difference]: Finished difference Result 115 states and 126 transitions. [2024-11-09 07:25:18,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:25:18,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2024-11-09 07:25:18,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:18,613 INFO L225 Difference]: With dead ends: 115 [2024-11-09 07:25:18,614 INFO L226 Difference]: Without dead ends: 113 [2024-11-09 07:25:18,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:25:18,618 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 94 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:18,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 77 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 07:25:18,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-09 07:25:18,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 94. [2024-11-09 07:25:18,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 59 states have (on average 1.6440677966101696) internal successors, (97), 86 states have internal predecessors, (97), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:25:18,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 107 transitions. [2024-11-09 07:25:18,633 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 107 transitions. Word has length 23 [2024-11-09 07:25:18,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:18,633 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 107 transitions. [2024-11-09 07:25:18,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:25:18,634 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 107 transitions. [2024-11-09 07:25:18,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 07:25:18,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:18,635 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:25:18,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 07:25:18,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:18,839 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:25:18,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:18,840 INFO L85 PathProgramCache]: Analyzing trace with hash -84482697, now seen corresponding path program 1 times [2024-11-09 07:25:18,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:18,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7521752] [2024-11-09 07:25:18,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:18,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:25:18,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870578674] [2024-11-09 07:25:18,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:18,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:18,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:18,879 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:18,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:25:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:18,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:25:18,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:19,584 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:25:19,584 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:25:19,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:19,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7521752] [2024-11-09 07:25:19,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:25:19,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870578674] [2024-11-09 07:25:19,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870578674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:19,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:19,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:25:19,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205883981] [2024-11-09 07:25:19,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:19,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:25:19,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:19,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:25:19,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:25:19,589 INFO L87 Difference]: Start difference. First operand 94 states and 107 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:25:19,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:19,785 INFO L93 Difference]: Finished difference Result 115 states and 124 transitions. [2024-11-09 07:25:19,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:25:19,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-11-09 07:25:19,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:19,788 INFO L225 Difference]: With dead ends: 115 [2024-11-09 07:25:19,788 INFO L226 Difference]: Without dead ends: 113 [2024-11-09 07:25:19,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:25:19,790 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 31 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:19,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 155 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:25:19,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-09 07:25:19,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 95. [2024-11-09 07:25:19,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 60 states have (on average 1.6166666666666667) internal successors, (97), 87 states have internal predecessors, (97), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:25:19,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 107 transitions. [2024-11-09 07:25:19,806 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 107 transitions. Word has length 24 [2024-11-09 07:25:19,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:19,807 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 107 transitions. [2024-11-09 07:25:19,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:25:19,807 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 107 transitions. [2024-11-09 07:25:19,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 07:25:19,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:19,808 INFO L215 NwaCegarLoop]: trace histogram [3, 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 07:25:19,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 07:25:20,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:20,014 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:25:20,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:20,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1676003757, now seen corresponding path program 1 times [2024-11-09 07:25:20,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:20,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602188382] [2024-11-09 07:25:20,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:20,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:25:20,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1724679199] [2024-11-09 07:25:20,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:20,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:20,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:20,048 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:20,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:25:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:20,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 07:25:20,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:20,544 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:25:20,544 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:25:21,060 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:25:21,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:21,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602188382] [2024-11-09 07:25:21,061 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:25:21,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724679199] [2024-11-09 07:25:21,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724679199] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 07:25:21,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:25:21,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-09 07:25:21,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534100220] [2024-11-09 07:25:21,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:21,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:25:21,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:21,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:25:21,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:25:21,064 INFO L87 Difference]: Start difference. First operand 95 states and 107 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:25:23,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-09 07:25:25,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-09 07:25:26,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:26,277 INFO L93 Difference]: Finished difference Result 96 states and 107 transitions. [2024-11-09 07:25:26,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:25:26,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-11-09 07:25:26,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:26,280 INFO L225 Difference]: With dead ends: 96 [2024-11-09 07:25:26,280 INFO L226 Difference]: Without dead ends: 94 [2024-11-09 07:25:26,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:25:26,281 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 33 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:26,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 55 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2024-11-09 07:25:26,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-09 07:25:26,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-09 07:25:26,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 60 states have (on average 1.5833333333333333) internal successors, (95), 86 states have internal predecessors, (95), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:25:26,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 105 transitions. [2024-11-09 07:25:26,313 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 105 transitions. Word has length 25 [2024-11-09 07:25:26,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:26,313 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 105 transitions. [2024-11-09 07:25:26,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:25:26,314 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 105 transitions. [2024-11-09 07:25:26,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 07:25:26,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:26,315 INFO L215 NwaCegarLoop]: trace histogram [3, 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 07:25:26,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 07:25:26,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:26,516 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:25:26,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:26,519 INFO L85 PathProgramCache]: Analyzing trace with hash 416508985, now seen corresponding path program 1 times [2024-11-09 07:25:26,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:26,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929157138] [2024-11-09 07:25:26,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:26,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:25:26,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [585892280] [2024-11-09 07:25:26,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:26,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:26,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:26,570 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:26,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:25:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:26,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 07:25:26,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:27,175 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:25:27,176 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:25:28,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:28,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929157138] [2024-11-09 07:25:28,111 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:25:28,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585892280] [2024-11-09 07:25:28,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585892280] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:25:28,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [761688102] [2024-11-09 07:25:28,114 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-09 07:25:28,114 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:25:28,115 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:25:28,115 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:25:28,115 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:25:28,554 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:25:28,555 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:25:30,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [761688102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:30,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:25:30,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 17 [2024-11-09 07:25:30,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121648690] [2024-11-09 07:25:30,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:30,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:25:30,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:30,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:25:30,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:25:30,167 INFO L87 Difference]: Start difference. First operand 94 states and 105 transitions. Second operand has 12 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:25:30,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:30,625 INFO L93 Difference]: Finished difference Result 95 states and 105 transitions. [2024-11-09 07:25:30,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 07:25:30,625 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2024-11-09 07:25:30,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:30,627 INFO L225 Difference]: With dead ends: 95 [2024-11-09 07:25:30,627 INFO L226 Difference]: Without dead ends: 94 [2024-11-09 07:25:30,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 36 SyntacticMatches, 10 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:25:30,628 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 179 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:30,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 31 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 07:25:30,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-09 07:25:30,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-09 07:25:30,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 60 states have (on average 1.5666666666666667) internal successors, (94), 86 states have internal predecessors, (94), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:25:30,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 104 transitions. [2024-11-09 07:25:30,643 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 104 transitions. Word has length 26 [2024-11-09 07:25:30,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:30,644 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 104 transitions. [2024-11-09 07:25:30,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:25:30,644 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 104 transitions. [2024-11-09 07:25:30,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 07:25:30,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:30,645 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:25:30,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 07:25:30,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:30,846 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:25:30,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:30,847 INFO L85 PathProgramCache]: Analyzing trace with hash 672609060, now seen corresponding path program 1 times [2024-11-09 07:25:30,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:30,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060091512] [2024-11-09 07:25:30,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:30,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:25:30,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:30,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060091512] [2024-11-09 07:25:30,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060091512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:30,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:30,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:25:30,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182566622] [2024-11-09 07:25:30,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:30,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:25:30,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:30,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:25:30,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:25:30,979 INFO L87 Difference]: Start difference. First operand 94 states and 104 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:31,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:31,343 INFO L93 Difference]: Finished difference Result 94 states and 104 transitions. [2024-11-09 07:25:31,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:25:31,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 31 [2024-11-09 07:25:31,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:31,345 INFO L225 Difference]: With dead ends: 94 [2024-11-09 07:25:31,345 INFO L226 Difference]: Without dead ends: 92 [2024-11-09 07:25:31,345 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 07:25:31,346 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 21 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:31,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 44 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 07:25:31,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-09 07:25:31,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-09 07:25:31,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 60 states have (on average 1.5166666666666666) internal successors, (91), 84 states have internal predecessors, (91), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:25:31,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2024-11-09 07:25:31,361 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 31 [2024-11-09 07:25:31,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:31,361 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2024-11-09 07:25:31,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:31,362 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2024-11-09 07:25:31,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 07:25:31,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:31,363 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:25:31,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:25:31,363 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:25:31,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:31,364 INFO L85 PathProgramCache]: Analyzing trace with hash -623955521, now seen corresponding path program 1 times [2024-11-09 07:25:31,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:31,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043628760] [2024-11-09 07:25:31,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:31,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:31,630 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:25:31,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:31,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043628760] [2024-11-09 07:25:31,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043628760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:31,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:31,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:25:31,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926816815] [2024-11-09 07:25:31,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:31,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:25:31,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:31,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:25:31,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:25:31,633 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:32,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:32,180 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2024-11-09 07:25:32,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:25:32,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2024-11-09 07:25:32,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:32,182 INFO L225 Difference]: With dead ends: 92 [2024-11-09 07:25:32,182 INFO L226 Difference]: Without dead ends: 90 [2024-11-09 07:25:32,183 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 07:25:32,188 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 20 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:32,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 46 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 07:25:32,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-09 07:25:32,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-09 07:25:32,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 60 states have (on average 1.4666666666666666) internal successors, (88), 82 states have internal predecessors, (88), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:25:32,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2024-11-09 07:25:32,211 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 32 [2024-11-09 07:25:32,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:32,212 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2024-11-09 07:25:32,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:32,212 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2024-11-09 07:25:32,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 07:25:32,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:32,213 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:25:32,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 07:25:32,214 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:25:32,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:32,214 INFO L85 PathProgramCache]: Analyzing trace with hash 2132215430, now seen corresponding path program 1 times [2024-11-09 07:25:32,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:32,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347531479] [2024-11-09 07:25:32,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:32,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:32,290 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:25:32,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:32,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347531479] [2024-11-09 07:25:32,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347531479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:32,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:32,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:25:32,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6096353] [2024-11-09 07:25:32,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:32,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:25:32,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:32,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:25:32,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:25:32,294 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:32,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:32,495 INFO L93 Difference]: Finished difference Result 90 states and 98 transitions. [2024-11-09 07:25:32,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:25:32,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2024-11-09 07:25:32,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:32,497 INFO L225 Difference]: With dead ends: 90 [2024-11-09 07:25:32,497 INFO L226 Difference]: Without dead ends: 89 [2024-11-09 07:25:32,497 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 07:25:32,498 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 19 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:32,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 48 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:25:32,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-09 07:25:32,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-09 07:25:32,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 81 states have internal predecessors, (86), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:25:32,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 96 transitions. [2024-11-09 07:25:32,512 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 96 transitions. Word has length 33 [2024-11-09 07:25:32,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:32,512 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 96 transitions. [2024-11-09 07:25:32,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:32,513 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 96 transitions. [2024-11-09 07:25:32,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 07:25:32,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:32,514 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:25:32,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 07:25:32,514 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:25:32,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:32,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1674168993, now seen corresponding path program 1 times [2024-11-09 07:25:32,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:32,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64998575] [2024-11-09 07:25:32,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:32,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:32,597 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:25:32,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:32,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64998575] [2024-11-09 07:25:32,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64998575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:32,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:32,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:25:32,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008323408] [2024-11-09 07:25:32,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:32,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:25:32,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:32,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:25:32,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:25:32,600 INFO L87 Difference]: Start difference. First operand 89 states and 96 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:32,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:32,819 INFO L93 Difference]: Finished difference Result 89 states and 96 transitions. [2024-11-09 07:25:32,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:25:32,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2024-11-09 07:25:32,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:32,823 INFO L225 Difference]: With dead ends: 89 [2024-11-09 07:25:32,823 INFO L226 Difference]: Without dead ends: 88 [2024-11-09 07:25:32,823 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 07:25:32,825 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 18 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:32,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 50 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:25:32,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-09 07:25:32,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-09 07:25:32,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 60 states have (on average 1.4) internal successors, (84), 80 states have internal predecessors, (84), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:25:32,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 94 transitions. [2024-11-09 07:25:32,864 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 94 transitions. Word has length 34 [2024-11-09 07:25:32,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:32,864 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 94 transitions. [2024-11-09 07:25:32,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:32,864 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 94 transitions. [2024-11-09 07:25:32,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 07:25:32,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:32,871 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:25:32,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:25:32,873 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:25:32,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:32,874 INFO L85 PathProgramCache]: Analyzing trace with hash 359631336, now seen corresponding path program 1 times [2024-11-09 07:25:32,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:32,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864157081] [2024-11-09 07:25:32,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:32,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:32,984 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:25:32,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:32,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864157081] [2024-11-09 07:25:32,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864157081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:32,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:32,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:25:32,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704686755] [2024-11-09 07:25:32,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:32,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:25:32,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:32,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:25:32,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:25:32,987 INFO L87 Difference]: Start difference. First operand 88 states and 94 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:33,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:33,155 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions. [2024-11-09 07:25:33,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:25:33,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2024-11-09 07:25:33,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:33,156 INFO L225 Difference]: With dead ends: 88 [2024-11-09 07:25:33,156 INFO L226 Difference]: Without dead ends: 87 [2024-11-09 07:25:33,157 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 07:25:33,158 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 17 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:33,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 51 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:25:33,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-09 07:25:33,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-09 07:25:33,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 60 states have (on average 1.3666666666666667) internal successors, (82), 79 states have internal predecessors, (82), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:25:33,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 92 transitions. [2024-11-09 07:25:33,168 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 92 transitions. Word has length 35 [2024-11-09 07:25:33,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:33,169 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 92 transitions. [2024-11-09 07:25:33,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:33,169 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 92 transitions. [2024-11-09 07:25:33,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 07:25:33,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:33,170 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:25:33,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 07:25:33,171 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:25:33,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:33,171 INFO L85 PathProgramCache]: Analyzing trace with hash 398757843, now seen corresponding path program 1 times [2024-11-09 07:25:33,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:33,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522706797] [2024-11-09 07:25:33,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:33,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:33,361 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:25:33,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:33,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522706797] [2024-11-09 07:25:33,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522706797] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:25:33,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220285348] [2024-11-09 07:25:33,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:33,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:33,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:33,364 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:33,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 07:25:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:33,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:25:33,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:33,646 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:25:33,646 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:25:33,738 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:25:33,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220285348] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:25:33,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [711851734] [2024-11-09 07:25:33,740 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2024-11-09 07:25:33,741 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:25:33,741 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:25:33,741 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:25:33,741 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:25:34,365 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 52 for LOIs [2024-11-09 07:25:34,377 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:25:34,379 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:25:36,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [711851734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:36,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:25:36,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 4, 4] total 19 [2024-11-09 07:25:36,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852581640] [2024-11-09 07:25:36,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:36,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 07:25:36,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:36,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 07:25:36,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-09 07:25:36,283 INFO L87 Difference]: Start difference. First operand 87 states and 92 transitions. Second operand has 15 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:25:36,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:36,825 INFO L93 Difference]: Finished difference Result 95 states and 99 transitions. [2024-11-09 07:25:36,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 07:25:36,826 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 35 [2024-11-09 07:25:36,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:36,827 INFO L225 Difference]: With dead ends: 95 [2024-11-09 07:25:36,827 INFO L226 Difference]: Without dead ends: 93 [2024-11-09 07:25:36,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 75 SyntacticMatches, 14 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-09 07:25:36,828 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 105 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:36,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 45 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 07:25:36,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-09 07:25:36,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-09 07:25:36,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 65 states have (on average 1.3384615384615384) internal successors, (87), 84 states have internal predecessors, (87), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:25:36,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 97 transitions. [2024-11-09 07:25:36,837 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 97 transitions. Word has length 35 [2024-11-09 07:25:36,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:36,838 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 97 transitions. [2024-11-09 07:25:36,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:25:36,838 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 97 transitions. [2024-11-09 07:25:36,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 07:25:36,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:36,839 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:25:36,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 07:25:37,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:37,040 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:25:37,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:37,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1736330365, now seen corresponding path program 1 times [2024-11-09 07:25:37,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:37,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50893767] [2024-11-09 07:25:37,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:37,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:37,084 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:25:37,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:37,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50893767] [2024-11-09 07:25:37,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50893767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:37,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:37,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:25:37,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685193268] [2024-11-09 07:25:37,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:37,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:25:37,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:37,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:25:37,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:25:37,087 INFO L87 Difference]: Start difference. First operand 93 states and 97 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:37,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:37,227 INFO L93 Difference]: Finished difference Result 93 states and 97 transitions. [2024-11-09 07:25:37,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:25:37,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2024-11-09 07:25:37,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:37,228 INFO L225 Difference]: With dead ends: 93 [2024-11-09 07:25:37,228 INFO L226 Difference]: Without dead ends: 92 [2024-11-09 07:25:37,229 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 07:25:37,229 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 16 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:37,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 53 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:25:37,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-09 07:25:37,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-09 07:25:37,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 83 states have internal predecessors, (85), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:25:37,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 95 transitions. [2024-11-09 07:25:37,239 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 95 transitions. Word has length 36 [2024-11-09 07:25:37,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:37,239 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 95 transitions. [2024-11-09 07:25:37,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:37,239 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 95 transitions. [2024-11-09 07:25:37,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 07:25:37,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:37,240 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:25:37,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 07:25:37,240 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:25:37,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:37,241 INFO L85 PathProgramCache]: Analyzing trace with hash 954200597, now seen corresponding path program 1 times [2024-11-09 07:25:37,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:37,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907449593] [2024-11-09 07:25:37,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:37,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:25:37,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277107220] [2024-11-09 07:25:37,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:37,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:37,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:37,257 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:37,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 07:25:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:37,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:25:37,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:37,420 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:25:37,420 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:25:37,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:37,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907449593] [2024-11-09 07:25:37,420 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:25:37,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277107220] [2024-11-09 07:25:37,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277107220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:37,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:37,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:25:37,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078554780] [2024-11-09 07:25:37,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:37,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:25:37,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:37,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:25:37,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:25:37,423 INFO L87 Difference]: Start difference. First operand 92 states and 95 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:37,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:37,723 INFO L93 Difference]: Finished difference Result 97 states and 101 transitions. [2024-11-09 07:25:37,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:25:37,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2024-11-09 07:25:37,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:37,724 INFO L225 Difference]: With dead ends: 97 [2024-11-09 07:25:37,724 INFO L226 Difference]: Without dead ends: 96 [2024-11-09 07:25:37,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 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 07:25:37,725 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 59 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:37,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 35 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:25:37,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-09 07:25:37,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 93. [2024-11-09 07:25:37,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 66 states have (on average 1.303030303030303) internal successors, (86), 84 states have internal predecessors, (86), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:25:37,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 96 transitions. [2024-11-09 07:25:37,735 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 96 transitions. Word has length 37 [2024-11-09 07:25:37,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:37,735 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 96 transitions. [2024-11-09 07:25:37,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:37,736 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 96 transitions. [2024-11-09 07:25:37,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 07:25:37,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:37,737 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:25:37,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 07:25:37,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 07:25:37,941 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:25:37,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:37,942 INFO L85 PathProgramCache]: Analyzing trace with hash -484552473, now seen corresponding path program 1 times [2024-11-09 07:25:37,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:37,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903998557] [2024-11-09 07:25:37,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:37,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:25:37,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1676465371] [2024-11-09 07:25:37,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:37,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:37,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:37,959 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:37,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 07:25:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:38,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:25:38,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:38,127 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:25:38,127 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:25:38,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:38,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903998557] [2024-11-09 07:25:38,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:25:38,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676465371] [2024-11-09 07:25:38,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676465371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:38,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:38,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:25:38,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925105117] [2024-11-09 07:25:38,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:38,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:25:38,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:38,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:25:38,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:25:38,130 INFO L87 Difference]: Start difference. First operand 93 states and 96 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:38,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:38,325 INFO L93 Difference]: Finished difference Result 97 states and 100 transitions. [2024-11-09 07:25:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:25:38,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2024-11-09 07:25:38,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:38,326 INFO L225 Difference]: With dead ends: 97 [2024-11-09 07:25:38,327 INFO L226 Difference]: Without dead ends: 96 [2024-11-09 07:25:38,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 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 07:25:38,327 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 57 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:38,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 35 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:25:38,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-09 07:25:38,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2024-11-09 07:25:38,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 85 states have internal predecessors, (87), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:25:38,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 97 transitions. [2024-11-09 07:25:38,337 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 97 transitions. Word has length 38 [2024-11-09 07:25:38,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:38,337 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 97 transitions. [2024-11-09 07:25:38,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:38,337 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 97 transitions. [2024-11-09 07:25:38,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 07:25:38,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:38,338 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:25:38,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 07:25:38,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 07:25:38,539 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:25:38,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:38,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1373205831, now seen corresponding path program 1 times [2024-11-09 07:25:38,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:38,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449425635] [2024-11-09 07:25:38,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:38,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:38,593 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:25:38,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:38,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449425635] [2024-11-09 07:25:38,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449425635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:38,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:38,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:25:38,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499975826] [2024-11-09 07:25:38,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:38,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:25:38,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:38,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:25:38,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:25:38,596 INFO L87 Difference]: Start difference. First operand 94 states and 97 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:38,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:38,787 INFO L93 Difference]: Finished difference Result 94 states and 97 transitions. [2024-11-09 07:25:38,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:25:38,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-11-09 07:25:38,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:38,789 INFO L225 Difference]: With dead ends: 94 [2024-11-09 07:25:38,789 INFO L226 Difference]: Without dead ends: 83 [2024-11-09 07:25:38,789 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 07:25:38,790 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 8 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:38,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 53 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:25:38,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-09 07:25:38,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-09 07:25:38,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 74 states have internal predecessors, (75), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:25:38,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 85 transitions. [2024-11-09 07:25:38,797 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 85 transitions. Word has length 40 [2024-11-09 07:25:38,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:38,797 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 85 transitions. [2024-11-09 07:25:38,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:25:38,798 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 85 transitions. [2024-11-09 07:25:38,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 07:25:38,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:38,798 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:25:38,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 07:25:38,799 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:25:38,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:38,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1798456983, now seen corresponding path program 1 times [2024-11-09 07:25:38,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:38,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103381535] [2024-11-09 07:25:38,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:38,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:25:38,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [604733051] [2024-11-09 07:25:38,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:38,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:38,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:38,816 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:38,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 07:25:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:38,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 07:25:38,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:39,475 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:25:39,475 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:25:39,935 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:39,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103381535] [2024-11-09 07:25:39,935 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:25:39,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604733051] [2024-11-09 07:25:39,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604733051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:25:39,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [540702306] [2024-11-09 07:25:39,938 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 07:25:39,938 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:25:39,938 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:25:39,938 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:25:39,939 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:25:42,510 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 55 for LOIs [2024-11-09 07:25:42,532 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:25:42,534 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:25:50,997 WARN L286 SmtUtils]: Spent 6.44s on a formula simplification. DAG size of input: 109 DAG size of output: 46 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:26:21,117 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4433#(exists ((|v_ULTIMATE.start_main_~x~0#1_73| Int) (|v_ULTIMATE.start_main_~z~0#1_72| Int)) (and (<= 2 |ULTIMATE.start_main_~c~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 |v_ULTIMATE.start_main_~z~0#1_72|) (<= 0 |ULTIMATE.start_main_~az~0#1|) (<= |ULTIMATE.start_main_~az~0#1| 400) (<= (+ (* |v_ULTIMATE.start_main_~x~0#1_73| |v_ULTIMATE.start_main_~z~0#1_72|) 9223372036854775809) 0) (<= |v_ULTIMATE.start_main_~z~0#1_72| 20) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= 0 |ULTIMATE.start_main_~a~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_47| Int) (|v_ULTIMATE.start_main_~x~0#1_72| Int)) (and (= (* |v_ULTIMATE.start_main_~y~0#1_47| |v_ULTIMATE.start_main_~z~0#1_72|) |ULTIMATE.start_main_~y~0#1|) (<= 0 (+ (* |v_ULTIMATE.start_main_~y~0#1_47| |v_ULTIMATE.start_main_~z~0#1_72|) 9223372036854775808)) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_72| |v_ULTIMATE.start_main_~z~0#1_72|))) (= |v_ULTIMATE.start_main_~x~0#1_73| (+ |ULTIMATE.start_main_~a~0#1| (* |v_ULTIMATE.start_main_~x~0#1_72| |v_ULTIMATE.start_main_~z~0#1_72|))) (= (+ (* |ULTIMATE.start_main_~az~0#1| |v_ULTIMATE.start_main_~y~0#1_47|) |v_ULTIMATE.start_main_~x~0#1_72|) (+ |ULTIMATE.start_main_~a~0#1| (* |v_ULTIMATE.start_main_~x~0#1_72| |v_ULTIMATE.start_main_~z~0#1_72|))))) (<= |ULTIMATE.start_main_~k~0#1| 20)))' at error location [2024-11-09 07:26:21,117 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:26:21,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:26:21,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-09 07:26:21,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400589621] [2024-11-09 07:26:21,118 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:26:21,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 07:26:21,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:26:21,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 07:26:21,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=1497, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 07:26:21,121 INFO L87 Difference]: Start difference. First operand 83 states and 85 transitions. Second operand has 10 states, 7 states have (on average 4.428571428571429) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:26:21,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:26:21,667 INFO L93 Difference]: Finished difference Result 83 states and 85 transitions. [2024-11-09 07:26:21,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 07:26:21,667 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 4.428571428571429) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 40 [2024-11-09 07:26:21,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:26:21,668 INFO L225 Difference]: With dead ends: 83 [2024-11-09 07:26:21,668 INFO L226 Difference]: Without dead ends: 79 [2024-11-09 07:26:21,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 39.1s TimeCoverageRelationStatistics Valid=332, Invalid=1648, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 07:26:21,669 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 111 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:26:21,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 71 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 07:26:21,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-09 07:26:21,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-11-09 07:26:21,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 57 states have (on average 1.2456140350877194) internal successors, (71), 70 states have internal predecessors, (71), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:26:21,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 81 transitions. [2024-11-09 07:26:21,679 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 81 transitions. Word has length 40 [2024-11-09 07:26:21,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:26:21,679 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 81 transitions. [2024-11-09 07:26:21,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 4.428571428571429) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:26:21,680 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2024-11-09 07:26:21,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 07:26:21,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:21,680 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:26:21,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 07:26:21,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 07:26:21,881 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:26:21,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:21,881 INFO L85 PathProgramCache]: Analyzing trace with hash 82408429, now seen corresponding path program 1 times [2024-11-09 07:26:21,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:26:21,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198700455] [2024-11-09 07:26:21,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:21,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:26:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:26:21,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515035247] [2024-11-09 07:26:21,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:21,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:21,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:26:21,909 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:26:21,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 07:26:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:21,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 07:26:21,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:26:22,438 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:26:22,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:26:23,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:26:23,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198700455] [2024-11-09 07:26:23,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:26:23,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515035247] [2024-11-09 07:26:23,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515035247] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:26:23,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1984097712] [2024-11-09 07:26:23,163 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 07:26:23,163 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:26:23,164 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:26:23,164 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:26:23,164 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:26:25,564 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 55 for LOIs [2024-11-09 07:26:25,592 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:26:25,593 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:26:43,283 WARN L286 SmtUtils]: Spent 15.74s on a formula simplification. DAG size of input: 107 DAG size of output: 43 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:27:11,161 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4823#(exists ((|v_ULTIMATE.start_main_~z~0#1_73| Int) (|v_ULTIMATE.start_main_~x~0#1_80| Int)) (and (<= |v_ULTIMATE.start_main_~z~0#1_73| 20) (<= 0 |v_ULTIMATE.start_main_~z~0#1_73|) (<= 2 |ULTIMATE.start_main_~c~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~az~0#1|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_80| |v_ULTIMATE.start_main_~z~0#1_73|)) (exists ((|v_ULTIMATE.start_main_~x~0#1_79| Int) (|v_ULTIMATE.start_main_~y~0#1_52| Int)) (and (<= (+ |ULTIMATE.start_main_~a~0#1| (* |v_ULTIMATE.start_main_~x~0#1_79| |v_ULTIMATE.start_main_~z~0#1_73|)) 9223372036854775807) (<= (* |v_ULTIMATE.start_main_~y~0#1_52| |v_ULTIMATE.start_main_~z~0#1_73|) 9223372036854775807) (= |v_ULTIMATE.start_main_~x~0#1_80| (+ |ULTIMATE.start_main_~a~0#1| (* |v_ULTIMATE.start_main_~x~0#1_79| |v_ULTIMATE.start_main_~z~0#1_73|))) (= (* |v_ULTIMATE.start_main_~y~0#1_52| |v_ULTIMATE.start_main_~z~0#1_73|) |ULTIMATE.start_main_~y~0#1|) (= (+ |ULTIMATE.start_main_~a~0#1| (* |v_ULTIMATE.start_main_~x~0#1_79| |v_ULTIMATE.start_main_~z~0#1_73|)) (+ |v_ULTIMATE.start_main_~x~0#1_79| (* |ULTIMATE.start_main_~az~0#1| |v_ULTIMATE.start_main_~y~0#1_52|))))) (<= |ULTIMATE.start_main_~az~0#1| 400) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 20)))' at error location [2024-11-09 07:27:11,161 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:27:11,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:27:11,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 07:27:11,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448887806] [2024-11-09 07:27:11,162 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:27:11,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:27:11,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:11,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:27:11,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=1203, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 07:27:11,165 INFO L87 Difference]: Start difference. First operand 79 states and 81 transitions. Second operand has 7 states, 5 states have (on average 6.4) internal successors, (32), 7 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:27:11,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:11,500 INFO L93 Difference]: Finished difference Result 114 states and 121 transitions. [2024-11-09 07:27:11,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:27:11,500 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.4) internal successors, (32), 7 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 41 [2024-11-09 07:27:11,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:11,501 INFO L225 Difference]: With dead ends: 114 [2024-11-09 07:27:11,502 INFO L226 Difference]: Without dead ends: 112 [2024-11-09 07:27:11,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 46.1s TimeCoverageRelationStatistics Valid=288, Invalid=1272, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 07:27:11,503 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 98 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:11,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 78 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:27:11,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-09 07:27:11,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 98. [2024-11-09 07:27:11,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 88 states have internal predecessors, (98), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:27:11,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2024-11-09 07:27:11,520 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 41 [2024-11-09 07:27:11,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:11,521 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2024-11-09 07:27:11,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.4) internal successors, (32), 7 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:27:11,521 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2024-11-09 07:27:11,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 07:27:11,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:11,522 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:27:11,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 07:27:11,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 07:27:11,723 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:27:11,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:11,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1885090735, now seen corresponding path program 1 times [2024-11-09 07:27:11,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:11,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078144861] [2024-11-09 07:27:11,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:11,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:27:11,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1812957126] [2024-11-09 07:27:11,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:11,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:11,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:27:11,743 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:27:11,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 07:27:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:11,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 07:27:11,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:27:12,555 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:27:12,555 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:27:13,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:13,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078144861] [2024-11-09 07:27:13,327 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:27:13,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812957126] [2024-11-09 07:27:13,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812957126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:27:13,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [568306305] [2024-11-09 07:27:13,337 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 07:27:13,337 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:27:13,341 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:27:13,341 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:27:13,342 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:27:15,903 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 55 for LOIs [2024-11-09 07:27:15,930 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:27:15,931 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:27:41,842 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5283#(exists ((|v_ULTIMATE.start_main_~x~0#1_89| Int) (|v_ULTIMATE.start_main_~z~0#1_76| Int)) (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~az~0#1|) (<= |ULTIMATE.start_main_~az~0#1| 400) (<= |v_ULTIMATE.start_main_~z~0#1_76| 20) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= 0 |v_ULTIMATE.start_main_~z~0#1_76|) (<= (+ |v_ULTIMATE.start_main_~x~0#1_89| 9223372036854775808) (* |v_ULTIMATE.start_main_~x~0#1_89| |v_ULTIMATE.start_main_~z~0#1_76|)) (<= |ULTIMATE.start_main_~k~0#1| 20)))' at error location [2024-11-09 07:27:41,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:27:41,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:27:41,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 07:27:41,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741308385] [2024-11-09 07:27:41,843 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:27:41,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 07:27:41,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:41,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 07:27:41,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=1572, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 07:27:41,846 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand has 11 states, 8 states have (on average 4.25) internal successors, (34), 11 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:27:42,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:42,663 INFO L93 Difference]: Finished difference Result 98 states and 110 transitions. [2024-11-09 07:27:42,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 07:27:42,664 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 4.25) internal successors, (34), 11 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 43 [2024-11-09 07:27:42,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:42,665 INFO L225 Difference]: With dead ends: 98 [2024-11-09 07:27:42,665 INFO L226 Difference]: Without dead ends: 96 [2024-11-09 07:27:42,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 866 ImplicationChecksByTransitivity, 26.8s TimeCoverageRelationStatistics Valid=461, Invalid=1891, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 07:27:42,667 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 152 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:42,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 68 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 07:27:42,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-09 07:27:42,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-09 07:27:42,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 75 states have (on average 1.2533333333333334) internal successors, (94), 86 states have internal predecessors, (94), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:27:42,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions. [2024-11-09 07:27:42,682 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 43 [2024-11-09 07:27:42,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:42,682 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions. [2024-11-09 07:27:42,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 4.25) internal successors, (34), 11 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:27:42,683 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2024-11-09 07:27:42,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 07:27:42,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:42,683 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:27:42,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 07:27:42,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 07:27:42,884 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:27:42,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:42,885 INFO L85 PathProgramCache]: Analyzing trace with hash 2040750831, now seen corresponding path program 1 times [2024-11-09 07:27:42,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:42,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886091026] [2024-11-09 07:27:42,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:42,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:27:42,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1590168277] [2024-11-09 07:27:42,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:42,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:42,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:27:42,906 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:27:42,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 07:27:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:42,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 07:27:42,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:27:43,737 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:27:43,738 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:27:43,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:43,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886091026] [2024-11-09 07:27:43,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:27:43,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590168277] [2024-11-09 07:27:43,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590168277] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:27:43,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [190514761] [2024-11-09 07:27:43,946 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 07:27:43,946 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:27:43,946 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:27:43,947 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:27:43,947 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:27:46,336 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 55 for LOIs [2024-11-09 07:27:46,352 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:27:46,353 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:28:13,957 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5744#(and (exists ((|v_ULTIMATE.start_main_~az~0#1_39| Int) (|v_ULTIMATE.start_main_~y~0#1_66| Int)) (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 |v_ULTIMATE.start_main_~az~0#1_39|) (<= |ULTIMATE.start_main_~z~0#1| 20) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= (+ (* |v_ULTIMATE.start_main_~y~0#1_66| |v_ULTIMATE.start_main_~az~0#1_39|) 9223372036854775809) 0) (<= |v_ULTIMATE.start_main_~az~0#1_39| 400) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= 0 |ULTIMATE.start_main_~z~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 20))) (<= (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~a~0#1|) (+ 9223372036854775807 |ULTIMATE.start_main_~x~0#1|)) (<= |ULTIMATE.start_main_~x~0#1| (+ 9223372036854775808 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~a~0#1|)))' at error location [2024-11-09 07:28:13,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:28:13,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:28:13,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-09 07:28:13,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689909122] [2024-11-09 07:28:13,958 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:28:13,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:28:13,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:28:13,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:28:13,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=1257, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 07:28:13,959 INFO L87 Difference]: Start difference. First operand 96 states and 106 transitions. Second operand has 8 states, 6 states have (on average 6.166666666666667) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:28:14,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:28:14,450 INFO L93 Difference]: Finished difference Result 96 states and 106 transitions. [2024-11-09 07:28:14,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 07:28:14,451 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.166666666666667) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 46 [2024-11-09 07:28:14,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:28:14,452 INFO L225 Difference]: With dead ends: 96 [2024-11-09 07:28:14,452 INFO L226 Difference]: Without dead ends: 93 [2024-11-09 07:28:14,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 27.9s TimeCoverageRelationStatistics Valid=320, Invalid=1402, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 07:28:14,454 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 130 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:28:14,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 56 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 07:28:14,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-09 07:28:14,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-09 07:28:14,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 75 states have (on average 1.2) internal successors, (90), 83 states have internal predecessors, (90), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:28:14,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2024-11-09 07:28:14,464 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 46 [2024-11-09 07:28:14,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:28:14,465 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2024-11-09 07:28:14,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.166666666666667) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:28:14,466 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2024-11-09 07:28:14,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 07:28:14,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:28:14,467 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:28:14,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 07:28:14,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:28:14,667 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:28:14,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:28:14,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1161233613, now seen corresponding path program 1 times [2024-11-09 07:28:14,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:28:14,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093345514] [2024-11-09 07:28:14,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:28:14,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:28:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:28:14,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292648390] [2024-11-09 07:28:14,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:28:14,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:28:14,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:28:14,686 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:28:14,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 07:28:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:28:14,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 07:28:14,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:28:15,394 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:28:15,394 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:28:18,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:28:18,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093345514] [2024-11-09 07:28:18,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:28:18,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292648390] [2024-11-09 07:28:18,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292648390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:28:18,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [945477585] [2024-11-09 07:28:18,625 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 07:28:18,625 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:28:18,626 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:28:18,626 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:28:18,626 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:28:20,857 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 55 for LOIs [2024-11-09 07:28:20,875 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:28:20,876 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:28:51,990 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6255#(and (<= (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~a~0#1|) (+ 9223372036854775807 |ULTIMATE.start_main_~x~0#1|)) (exists ((|v_ULTIMATE.start_main_~y~0#1_74| Int) (|v_ULTIMATE.start_main_~az~0#1_41| Int)) (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~z~0#1| 20) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= 0 |v_ULTIMATE.start_main_~az~0#1_41|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_74| |v_ULTIMATE.start_main_~az~0#1_41|)) (<= |v_ULTIMATE.start_main_~az~0#1_41| 400) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= 0 |ULTIMATE.start_main_~z~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 20))) (<= |ULTIMATE.start_main_~x~0#1| (+ 9223372036854775808 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~a~0#1|)))' at error location [2024-11-09 07:28:51,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:28:51,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:28:51,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-09 07:28:51,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614727116] [2024-11-09 07:28:51,991 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:28:51,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:28:51,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:28:51,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:28:51,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=1388, Unknown=2, NotChecked=0, Total=1722 [2024-11-09 07:28:51,993 INFO L87 Difference]: Start difference. First operand 93 states and 102 transitions. Second operand has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:28:52,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:28:52,986 INFO L93 Difference]: Finished difference Result 108 states and 113 transitions. [2024-11-09 07:28:52,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:28:52,987 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 47 [2024-11-09 07:28:52,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:28:52,988 INFO L225 Difference]: With dead ends: 108 [2024-11-09 07:28:52,988 INFO L226 Difference]: Without dead ends: 97 [2024-11-09 07:28:52,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 33.8s TimeCoverageRelationStatistics Valid=351, Invalid=1539, Unknown=2, NotChecked=0, Total=1892 [2024-11-09 07:28:52,990 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 124 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:28:52,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 87 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 07:28:52,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-09 07:28:53,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2024-11-09 07:28:53,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 77 states have (on average 1.1688311688311688) internal successors, (90), 85 states have internal predecessors, (90), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:28:53,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 102 transitions. [2024-11-09 07:28:53,016 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 102 transitions. Word has length 47 [2024-11-09 07:28:53,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:28:53,017 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 102 transitions. [2024-11-09 07:28:53,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:28:53,017 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 102 transitions. [2024-11-09 07:28:53,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 07:28:53,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:28:53,018 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:28:53,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 07:28:53,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:28:53,219 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:28:53,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:28:53,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1638503567, now seen corresponding path program 1 times [2024-11-09 07:28:53,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:28:53,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271705805] [2024-11-09 07:28:53,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:28:53,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:28:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:28:53,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1209045589] [2024-11-09 07:28:53,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:28:53,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:28:53,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:28:53,238 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:28:53,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 07:28:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:28:53,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 07:28:53,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:28:53,949 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:28:53,949 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:28:54,602 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:28:54,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:28:54,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271705805] [2024-11-09 07:28:54,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:28:54,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209045589] [2024-11-09 07:28:54,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209045589] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 07:28:54,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:28:54,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-09 07:28:54,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640451968] [2024-11-09 07:28:54,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:28:54,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:28:54,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:28:54,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:28:54,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 07:28:54,605 INFO L87 Difference]: Start difference. First operand 95 states and 102 transitions. Second operand has 6 states, 4 states have (on average 9.5) internal successors, (38), 6 states have internal predecessors, (38), 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 07:28:57,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:28:57,056 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2024-11-09 07:28:57,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:28:57,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 9.5) internal successors, (38), 6 states have internal predecessors, (38), 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 48 [2024-11-09 07:28:57,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:28:57,058 INFO L225 Difference]: With dead ends: 95 [2024-11-09 07:28:57,058 INFO L226 Difference]: Without dead ends: 94 [2024-11-09 07:28:57,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:28:57,059 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 27 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:28:57,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 92 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 07:28:57,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-09 07:28:57,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-09 07:28:57,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 77 states have (on average 1.1428571428571428) internal successors, (88), 84 states have internal predecessors, (88), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:28:57,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 100 transitions. [2024-11-09 07:28:57,072 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 100 transitions. Word has length 48 [2024-11-09 07:28:57,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:28:57,072 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 100 transitions. [2024-11-09 07:28:57,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 9.5) internal successors, (38), 6 states have internal predecessors, (38), 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 07:28:57,072 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 100 transitions. [2024-11-09 07:28:57,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 07:28:57,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:28:57,073 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:28:57,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 07:28:57,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:28:57,274 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:28:57,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:28:57,274 INFO L85 PathProgramCache]: Analyzing trace with hash 745997045, now seen corresponding path program 1 times [2024-11-09 07:28:57,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:28:57,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140059096] [2024-11-09 07:28:57,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:28:57,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:28:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:28:57,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [306586560] [2024-11-09 07:28:57,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:28:57,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:28:57,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:28:57,295 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:28:57,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 07:28:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:28:57,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 07:28:57,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:28:58,037 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:28:58,038 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:28:58,746 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:28:58,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:28:58,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140059096] [2024-11-09 07:28:58,747 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:28:58,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306586560] [2024-11-09 07:28:58,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306586560] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 07:28:58,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:28:58,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-09 07:28:58,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694414412] [2024-11-09 07:28:58,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:28:58,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:28:58,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:28:58,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:28:58,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 07:28:58,749 INFO L87 Difference]: Start difference. First operand 94 states and 100 transitions. Second operand has 6 states, 4 states have (on average 9.75) internal successors, (39), 6 states have internal predecessors, (39), 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 07:29:02,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:29:02,245 INFO L93 Difference]: Finished difference Result 94 states and 100 transitions. [2024-11-09 07:29:02,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:29:02,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 9.75) internal successors, (39), 6 states have internal predecessors, (39), 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 49 [2024-11-09 07:29:02,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:29:02,247 INFO L225 Difference]: With dead ends: 94 [2024-11-09 07:29:02,247 INFO L226 Difference]: Without dead ends: 93 [2024-11-09 07:29:02,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:29:02,248 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 26 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:29:02,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 94 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 07:29:02,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-09 07:29:02,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-09 07:29:02,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 77 states have (on average 1.1168831168831168) internal successors, (86), 83 states have internal predecessors, (86), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:29:02,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 98 transitions. [2024-11-09 07:29:02,263 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 98 transitions. Word has length 49 [2024-11-09 07:29:02,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:29:02,264 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 98 transitions. [2024-11-09 07:29:02,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 9.75) internal successors, (39), 6 states have internal predecessors, (39), 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 07:29:02,264 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 98 transitions. [2024-11-09 07:29:02,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 07:29:02,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:29:02,265 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:29:02,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 07:29:02,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:29:02,466 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:29:02,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:29:02,466 INFO L85 PathProgramCache]: Analyzing trace with hash 437285395, now seen corresponding path program 1 times [2024-11-09 07:29:02,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:29:02,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976290399] [2024-11-09 07:29:02,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:02,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:29:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:29:02,577 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 07:29:02,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:29:02,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976290399] [2024-11-09 07:29:02,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976290399] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:29:02,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136128390] [2024-11-09 07:29:02,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:02,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:29:02,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:29:02,580 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:29:02,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 07:29:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:29:02,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:29:02,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:29:02,744 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 07:29:02,744 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:29:02,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136128390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:29:02,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:29:02,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-09 07:29:02,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037371000] [2024-11-09 07:29:02,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:29:02,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:29:02,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:29:02,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:29:02,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:29:02,751 INFO L87 Difference]: Start difference. First operand 93 states and 98 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-09 07:29:02,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:29:02,814 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions. [2024-11-09 07:29:02,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:29:02,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 54 [2024-11-09 07:29:02,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:29:02,816 INFO L225 Difference]: With dead ends: 93 [2024-11-09 07:29:02,817 INFO L226 Difference]: Without dead ends: 92 [2024-11-09 07:29:02,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 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 07:29:02,818 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 5 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:29:02,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 104 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:29:02,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-09 07:29:02,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-09 07:29:02,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 77 states have (on average 1.0909090909090908) internal successors, (84), 82 states have internal predecessors, (84), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:29:02,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2024-11-09 07:29:02,835 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 54 [2024-11-09 07:29:02,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:29:02,836 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2024-11-09 07:29:02,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-09 07:29:02,836 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2024-11-09 07:29:02,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 07:29:02,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:29:02,837 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:29:02,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 07:29:03,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 07:29:03,038 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:29:03,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:29:03,038 INFO L85 PathProgramCache]: Analyzing trace with hash 670945437, now seen corresponding path program 1 times [2024-11-09 07:29:03,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:29:03,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602496978] [2024-11-09 07:29:03,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:03,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:29:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:29:03,189 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 07:29:03,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:29:03,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602496978] [2024-11-09 07:29:03,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602496978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:29:03,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468069458] [2024-11-09 07:29:03,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:03,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:29:03,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:29:03,193 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:29:03,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 07:29:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:29:03,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:29:03,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:29:03,356 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 07:29:03,356 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:29:03,461 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 07:29:03,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468069458] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:29:03,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [518268308] [2024-11-09 07:29:03,464 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 07:29:03,464 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:29:03,465 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:29:03,465 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:29:03,465 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:29:05,647 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 55 for LOIs [2024-11-09 07:29:05,665 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:29:05,666 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:29:30,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [518268308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:29:30,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:29:30,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [3, 3, 3] total 35 [2024-11-09 07:29:30,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29416218] [2024-11-09 07:29:30,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:29:30,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-09 07:29:30,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:29:30,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-09 07:29:30,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=1016, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 07:29:30,074 INFO L87 Difference]: Start difference. First operand 92 states and 96 transitions. Second operand has 31 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:29:44,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:29:46,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:29:46,010 INFO L93 Difference]: Finished difference Result 92 states and 96 transitions. [2024-11-09 07:29:46,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 07:29:46,010 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 55 [2024-11-09 07:29:46,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:29:46,011 INFO L225 Difference]: With dead ends: 92 [2024-11-09 07:29:46,011 INFO L226 Difference]: Without dead ends: 90 [2024-11-09 07:29:46,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 131 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 32.6s TimeCoverageRelationStatistics Valid=438, Invalid=1542, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 07:29:46,013 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 165 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:29:46,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 35 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2024-11-09 07:29:46,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-09 07:29:46,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-09 07:29:46,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 77 states have (on average 1.051948051948052) internal successors, (81), 80 states have internal predecessors, (81), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:29:46,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 93 transitions. [2024-11-09 07:29:46,034 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 93 transitions. Word has length 55 [2024-11-09 07:29:46,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:29:46,035 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 93 transitions. [2024-11-09 07:29:46,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:29:46,035 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 93 transitions. [2024-11-09 07:29:46,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 07:29:46,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:29:46,037 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:29:46,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-09 07:29:46,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-09 07:29:46,237 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:29:46,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:29:46,238 INFO L85 PathProgramCache]: Analyzing trace with hash -167375439, now seen corresponding path program 2 times [2024-11-09 07:29:46,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:29:46,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138058335] [2024-11-09 07:29:46,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:46,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:29:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:29:46,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2011179500] [2024-11-09 07:29:46,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:29:46,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:29:46,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:29:46,263 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:29:46,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 07:29:46,602 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 07:29:46,602 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:29:46,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 07:29:46,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:29:48,179 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 07:29:48,179 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:30:00,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:30:00,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138058335] [2024-11-09 07:30:00,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:30:00,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011179500] [2024-11-09 07:30:00,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011179500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:30:00,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [218218940] [2024-11-09 07:30:00,430 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 07:30:00,430 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:30:00,431 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:30:00,431 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:30:00,431 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:30:03,195 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 55 for LOIs [2024-11-09 07:30:03,213 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:30:03,214 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:30:18,883 WARN L286 SmtUtils]: Spent 11.28s on a formula simplification. DAG size of input: 107 DAG size of output: 43 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:30:58,186 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8841#(exists ((|v_ULTIMATE.start_main_~x~0#1_127| Int) (|v_ULTIMATE.start_main_~z~0#1_85| Int)) (and (<= 2 |ULTIMATE.start_main_~c~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~az~0#1|) (<= |ULTIMATE.start_main_~az~0#1| 400) (<= |v_ULTIMATE.start_main_~z~0#1_85| 20) (<= 0 |v_ULTIMATE.start_main_~z~0#1_85|) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_127| |v_ULTIMATE.start_main_~z~0#1_85|)) (exists ((|v_ULTIMATE.start_main_~x~0#1_126| Int) (|v_ULTIMATE.start_main_~y~0#1_99| Int)) (and (<= (* |v_ULTIMATE.start_main_~y~0#1_99| |v_ULTIMATE.start_main_~z~0#1_85|) 9223372036854775807) (= (+ |ULTIMATE.start_main_~a~0#1| (* |v_ULTIMATE.start_main_~x~0#1_126| |v_ULTIMATE.start_main_~z~0#1_85|)) (+ |v_ULTIMATE.start_main_~x~0#1_126| (* |ULTIMATE.start_main_~az~0#1| |v_ULTIMATE.start_main_~y~0#1_99|))) (= (+ |ULTIMATE.start_main_~a~0#1| (* |v_ULTIMATE.start_main_~x~0#1_126| |v_ULTIMATE.start_main_~z~0#1_85|)) |v_ULTIMATE.start_main_~x~0#1_127|) (<= (+ |ULTIMATE.start_main_~a~0#1| (* |v_ULTIMATE.start_main_~x~0#1_126| |v_ULTIMATE.start_main_~z~0#1_85|)) 9223372036854775807) (= |ULTIMATE.start_main_~y~0#1| (* |v_ULTIMATE.start_main_~y~0#1_99| |v_ULTIMATE.start_main_~z~0#1_85|)))) (<= |ULTIMATE.start_main_~k~0#1| 20)))' at error location [2024-11-09 07:30:58,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:30:58,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:30:58,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 07:30:58,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480324366] [2024-11-09 07:30:58,187 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:30:58,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:30:58,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:30:58,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:30:58,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=1914, Unknown=0, NotChecked=0, Total=2256 [2024-11-09 07:30:58,189 INFO L87 Difference]: Start difference. First operand 90 states and 93 transitions. Second operand has 12 states, 9 states have (on average 5.666666666666667) internal successors, (51), 12 states have internal predecessors, (51), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:30:59,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:30:59,173 INFO L93 Difference]: Finished difference Result 120 states and 124 transitions. [2024-11-09 07:30:59,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 07:30:59,173 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 5.666666666666667) internal successors, (51), 12 states have internal predecessors, (51), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 64 [2024-11-09 07:30:59,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:30:59,175 INFO L225 Difference]: With dead ends: 120 [2024-11-09 07:30:59,175 INFO L226 Difference]: Without dead ends: 118 [2024-11-09 07:30:59,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 114 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 803 ImplicationChecksByTransitivity, 59.6s TimeCoverageRelationStatistics Valid=353, Invalid=1999, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 07:30:59,176 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 89 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:30:59,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 132 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 07:30:59,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-09 07:30:59,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 109. [2024-11-09 07:30:59,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 95 states have (on average 1.0526315789473684) internal successors, (100), 98 states have internal predecessors, (100), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:30:59,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 114 transitions. [2024-11-09 07:30:59,195 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 114 transitions. Word has length 64 [2024-11-09 07:30:59,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:30:59,195 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 114 transitions. [2024-11-09 07:30:59,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 5.666666666666667) internal successors, (51), 12 states have internal predecessors, (51), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:30:59,196 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 114 transitions. [2024-11-09 07:30:59,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 07:30:59,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:30:59,197 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:30:59,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-09 07:30:59,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-09 07:30:59,398 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:30:59,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:30:59,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2130729189, now seen corresponding path program 1 times [2024-11-09 07:30:59,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:30:59,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161191977] [2024-11-09 07:30:59,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:30:59,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:30:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:30:59,543 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-09 07:30:59,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:30:59,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161191977] [2024-11-09 07:30:59,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161191977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:30:59,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:30:59,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:30:59,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096596995] [2024-11-09 07:30:59,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:30:59,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:30:59,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:30:59,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:30:59,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:30:59,546 INFO L87 Difference]: Start difference. First operand 109 states and 114 transitions. Second operand has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 07:30:59,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:30:59,789 INFO L93 Difference]: Finished difference Result 109 states and 114 transitions. [2024-11-09 07:30:59,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:30:59,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 84 [2024-11-09 07:30:59,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:30:59,791 INFO L225 Difference]: With dead ends: 109 [2024-11-09 07:30:59,791 INFO L226 Difference]: Without dead ends: 100 [2024-11-09 07:30:59,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:30:59,793 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 9 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:30:59,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 56 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:30:59,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-09 07:30:59,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-09 07:30:59,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 87 states have (on average 1.0344827586206897) internal successors, (90), 89 states have internal predecessors, (90), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:30:59,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 104 transitions. [2024-11-09 07:30:59,819 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 104 transitions. Word has length 84 [2024-11-09 07:30:59,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:30:59,820 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 104 transitions. [2024-11-09 07:30:59,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 07:30:59,820 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 104 transitions. [2024-11-09 07:30:59,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 07:30:59,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:30:59,821 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:30:59,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 07:30:59,822 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:30:59,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:30:59,822 INFO L85 PathProgramCache]: Analyzing trace with hash -482624153, now seen corresponding path program 1 times [2024-11-09 07:30:59,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:30:59,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085808305] [2024-11-09 07:30:59,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:30:59,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:30:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:30:59,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [865333017] [2024-11-09 07:30:59,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:30:59,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:30:59,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:30:59,847 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:30:59,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 07:30:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:30:59,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:30:59,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:31:00,806 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 07:31:00,807 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:31:02,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:31:02,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085808305] [2024-11-09 07:31:02,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:31:02,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865333017] [2024-11-09 07:31:02,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865333017] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:31:02,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [717925287] [2024-11-09 07:31:02,038 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 07:31:02,038 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:31:02,039 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:31:02,039 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:31:02,039 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:31:04,495 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 55 for LOIs [2024-11-09 07:31:04,512 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:31:04,514 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:31:28,505 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9739#(and (<= 2 |ULTIMATE.start_main_~c~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~az~0#1|) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 20) (exists ((|v_ULTIMATE.start_main_~x~0#1_133| Int) (|v_ULTIMATE.start_main_~y~0#1_107| Int) (|v_ULTIMATE.start_main_~z~0#1_86| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_107| |v_ULTIMATE.start_main_~z~0#1_86|)) (<= 0 (+ (* |v_ULTIMATE.start_main_~x~0#1_133| |v_ULTIMATE.start_main_~z~0#1_86|) 9223372036854775808)) (= (+ |v_ULTIMATE.start_main_~x~0#1_133| (* |v_ULTIMATE.start_main_~y~0#1_107| |ULTIMATE.start_main_~az~0#1|)) (+ (* |v_ULTIMATE.start_main_~x~0#1_133| |v_ULTIMATE.start_main_~z~0#1_86|) |ULTIMATE.start_main_~a~0#1|)) (<= (+ (* |v_ULTIMATE.start_main_~x~0#1_133| |v_ULTIMATE.start_main_~z~0#1_86|) |ULTIMATE.start_main_~a~0#1|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~z~0#1_86| 20) (= |ULTIMATE.start_main_~x~0#1| (+ (* |v_ULTIMATE.start_main_~x~0#1_133| |v_ULTIMATE.start_main_~z~0#1_86|) |ULTIMATE.start_main_~a~0#1|)) (<= 0 |v_ULTIMATE.start_main_~z~0#1_86|))) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 20))' at error location [2024-11-09 07:31:28,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:31:28,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:31:28,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 07:31:28,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638770760] [2024-11-09 07:31:28,506 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:31:28,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:31:28,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:31:28,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:31:28,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=1225, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 07:31:28,508 INFO L87 Difference]: Start difference. First operand 100 states and 104 transitions. Second operand has 7 states, 5 states have (on average 13.8) internal successors, (69), 7 states have internal predecessors, (69), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 07:31:29,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:31:29,188 INFO L93 Difference]: Finished difference Result 103 states and 107 transitions. [2024-11-09 07:31:29,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:31:29,188 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 13.8) internal successors, (69), 7 states have internal predecessors, (69), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 84 [2024-11-09 07:31:29,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:31:29,190 INFO L225 Difference]: With dead ends: 103 [2024-11-09 07:31:29,190 INFO L226 Difference]: Without dead ends: 102 [2024-11-09 07:31:29,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 159 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 24.2s TimeCoverageRelationStatistics Valid=257, Invalid=1225, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 07:31:29,191 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 21 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:31:29,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 59 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 07:31:29,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-09 07:31:29,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-09 07:31:29,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 89 states have (on average 1.0337078651685394) internal successors, (92), 91 states have internal predecessors, (92), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:31:29,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 106 transitions. [2024-11-09 07:31:29,220 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 106 transitions. Word has length 84 [2024-11-09 07:31:29,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:31:29,220 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 106 transitions. [2024-11-09 07:31:29,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 13.8) internal successors, (69), 7 states have internal predecessors, (69), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-09 07:31:29,221 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 106 transitions. [2024-11-09 07:31:29,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 07:31:29,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:31:29,222 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:31:29,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-09 07:31:29,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 07:31:29,423 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:31:29,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:31:29,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1694414701, now seen corresponding path program 3 times [2024-11-09 07:31:29,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:31:29,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314948504] [2024-11-09 07:31:29,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:31:29,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:31:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:31:29,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2039795214] [2024-11-09 07:31:29,446 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:31:29,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:31:29,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:31:29,448 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:31:29,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 07:31:29,789 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:31:29,789 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:31:29,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-09 07:31:29,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:31:36,635 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 07:31:36,635 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:31:37,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:31:37,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314948504] [2024-11-09 07:31:37,353 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:31:37,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039795214] [2024-11-09 07:31:37,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039795214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:31:37,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1639612048] [2024-11-09 07:31:37,355 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 07:31:37,355 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:31:37,355 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:31:37,355 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:31:37,355 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:31:39,509 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 55 for LOIs [2024-11-09 07:31:39,526 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:31:39,527 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:31:51,862 WARN L286 SmtUtils]: Spent 11.09s on a formula simplification. DAG size of input: 107 DAG size of output: 43 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:32:47,118 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10322#(exists ((|v_ULTIMATE.start_main_~x~0#1_144| Int) (|v_ULTIMATE.start_main_~z~0#1_89| Int)) (and (exists ((|v_ULTIMATE.start_main_~x~0#1_143| Int) (|v_ULTIMATE.start_main_~y~0#1_116| Int)) (and (= (+ |v_ULTIMATE.start_main_~x~0#1_143| (* |v_ULTIMATE.start_main_~y~0#1_116| |ULTIMATE.start_main_~az~0#1|)) (+ |ULTIMATE.start_main_~a~0#1| (* |v_ULTIMATE.start_main_~x~0#1_143| |v_ULTIMATE.start_main_~z~0#1_89|))) (= |v_ULTIMATE.start_main_~x~0#1_144| (+ |ULTIMATE.start_main_~a~0#1| (* |v_ULTIMATE.start_main_~x~0#1_143| |v_ULTIMATE.start_main_~z~0#1_89|))) (<= (* |v_ULTIMATE.start_main_~y~0#1_116| |v_ULTIMATE.start_main_~z~0#1_89|) 9223372036854775807) (= (* |v_ULTIMATE.start_main_~y~0#1_116| |v_ULTIMATE.start_main_~z~0#1_89|) |ULTIMATE.start_main_~y~0#1|) (<= (+ |ULTIMATE.start_main_~a~0#1| (* |v_ULTIMATE.start_main_~x~0#1_143| |v_ULTIMATE.start_main_~z~0#1_89|)) 9223372036854775807))) (<= 2 |ULTIMATE.start_main_~c~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~az~0#1|) (<= |ULTIMATE.start_main_~az~0#1| 400) (<= 0 |v_ULTIMATE.start_main_~z~0#1_89|) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_144| |v_ULTIMATE.start_main_~z~0#1_89|)) (<= |v_ULTIMATE.start_main_~z~0#1_89| 20) (<= |ULTIMATE.start_main_~k~0#1| 20)))' at error location [2024-11-09 07:32:47,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:32:47,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:32:47,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-09 07:32:47,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185231991] [2024-11-09 07:32:47,119 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:32:47,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 07:32:47,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:32:47,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 07:32:47,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=337, Invalid=1822, Unknown=3, NotChecked=0, Total=2162 [2024-11-09 07:32:47,121 INFO L87 Difference]: Start difference. First operand 102 states and 106 transitions. Second operand has 14 states, 11 states have (on average 6.545454545454546) internal successors, (72), 14 states have internal predecessors, (72), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:32:49,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:32:51,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:32:53,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:32:55,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:32:57,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:33:04,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:33:04,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:33:04,076 INFO L93 Difference]: Finished difference Result 123 states and 128 transitions. [2024-11-09 07:33:04,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 07:33:04,077 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 6.545454545454546) internal successors, (72), 14 states have internal predecessors, (72), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Word has length 87 [2024-11-09 07:33:04,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:33:04,078 INFO L225 Difference]: With dead ends: 123 [2024-11-09 07:33:04,078 INFO L226 Difference]: Without dead ends: 121 [2024-11-09 07:33:04,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 137 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 76.1s TimeCoverageRelationStatistics Valid=363, Invalid=1985, Unknown=4, NotChecked=0, Total=2352 [2024-11-09 07:33:04,079 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 100 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:33:04,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 161 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 499 Invalid, 6 Unknown, 0 Unchecked, 13.7s Time] [2024-11-09 07:33:04,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-09 07:33:04,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-09 07:33:04,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 107 states have (on average 1.02803738317757) internal successors, (110), 109 states have internal predecessors, (110), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 07:33:04,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2024-11-09 07:33:04,097 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 87 [2024-11-09 07:33:04,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:33:04,097 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2024-11-09 07:33:04,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 6.545454545454546) internal successors, (72), 14 states have internal predecessors, (72), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:33:04,097 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2024-11-09 07:33:04,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 07:33:04,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:33:04,098 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:33:04,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-09 07:33:04,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 07:33:04,299 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:33:04,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:33:04,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1620717859, now seen corresponding path program 2 times [2024-11-09 07:33:04,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:33:04,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130561282] [2024-11-09 07:33:04,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:33:04,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:33:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:33:04,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1605380231] [2024-11-09 07:33:04,318 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:33:04,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:33:04,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:33:04,320 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:33:04,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 07:33:04,485 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-09 07:33:04,485 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:33:04,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 07:33:04,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:33:05,446 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:33:05,446 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:33:06,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:33:06,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130561282] [2024-11-09 07:33:06,570 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:33:06,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605380231] [2024-11-09 07:33:06,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605380231] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:33:06,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1693407863] [2024-11-09 07:33:06,572 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 07:33:06,572 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:33:06,572 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:33:06,572 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:33:06,572 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:33:08,159 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 55 for LOIs [2024-11-09 07:33:08,197 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:33:08,199 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:33:35,047 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11066#(and (<= 2 |ULTIMATE.start_main_~c~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~az~0#1|) (exists ((|v_ULTIMATE.start_main_~z~0#1_90| Int) (|v_ULTIMATE.start_main_~y~0#1_125| Int) (|v_ULTIMATE.start_main_~x~0#1_150| Int)) (and (= (+ (* |v_ULTIMATE.start_main_~y~0#1_125| |ULTIMATE.start_main_~az~0#1|) |v_ULTIMATE.start_main_~x~0#1_150|) (+ (* |v_ULTIMATE.start_main_~x~0#1_150| |v_ULTIMATE.start_main_~z~0#1_90|) |ULTIMATE.start_main_~a~0#1|)) (<= |v_ULTIMATE.start_main_~z~0#1_90| 20) (<= 0 |v_ULTIMATE.start_main_~z~0#1_90|) (= |ULTIMATE.start_main_~x~0#1| (+ (* |v_ULTIMATE.start_main_~x~0#1_150| |v_ULTIMATE.start_main_~z~0#1_90|) |ULTIMATE.start_main_~a~0#1|)) (<= (+ (* |v_ULTIMATE.start_main_~x~0#1_150| |v_ULTIMATE.start_main_~z~0#1_90|) |ULTIMATE.start_main_~a~0#1|) 9223372036854775807) (<= 0 (+ (* |v_ULTIMATE.start_main_~x~0#1_150| |v_ULTIMATE.start_main_~z~0#1_90|) 9223372036854775808)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_125| |v_ULTIMATE.start_main_~z~0#1_90|)))) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 20))' at error location [2024-11-09 07:33:35,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:33:35,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:33:35,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-09 07:33:35,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016930328] [2024-11-09 07:33:35,047 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:33:35,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:33:35,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:33:35,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:33:35,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=1297, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 07:33:35,049 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand has 8 states, 6 states have (on average 14.833333333333334) internal successors, (89), 8 states have internal predecessors, (89), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 07:33:35,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:33:35,966 INFO L93 Difference]: Finished difference Result 124 states and 129 transitions. [2024-11-09 07:33:35,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:33:35,967 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 14.833333333333334) internal successors, (89), 8 states have internal predecessors, (89), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) Word has length 107 [2024-11-09 07:33:35,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:33:35,968 INFO L225 Difference]: With dead ends: 124 [2024-11-09 07:33:35,968 INFO L226 Difference]: Without dead ends: 123 [2024-11-09 07:33:35,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 203 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 27.0s TimeCoverageRelationStatistics Valid=263, Invalid=1297, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 07:33:35,970 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 21 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:33:35,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 58 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 07:33:35,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-09 07:33:35,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-11-09 07:33:35,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 109 states have (on average 1.0275229357798166) internal successors, (112), 111 states have internal predecessors, (112), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 07:33:35,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 128 transitions. [2024-11-09 07:33:36,000 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 128 transitions. Word has length 107 [2024-11-09 07:33:36,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:33:36,000 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 128 transitions. [2024-11-09 07:33:36,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 14.833333333333334) internal successors, (89), 8 states have internal predecessors, (89), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 07:33:36,001 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 128 transitions. [2024-11-09 07:33:36,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 07:33:36,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:33:36,002 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:33:36,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-09 07:33:36,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 07:33:36,207 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:33:36,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:33:36,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1216554447, now seen corresponding path program 4 times [2024-11-09 07:33:36,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:33:36,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284318271] [2024-11-09 07:33:36,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:33:36,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:33:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:33:36,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1676892480] [2024-11-09 07:33:36,264 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:33:36,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:33:36,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:33:36,269 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:33:36,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 07:33:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:33:37,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 07:33:37,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:33:38,566 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-09 07:33:38,566 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:33:38,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:33:38,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284318271] [2024-11-09 07:33:38,878 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:33:38,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676892480] [2024-11-09 07:33:38,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676892480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:33:38,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1742916645] [2024-11-09 07:33:38,879 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 07:33:38,880 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:33:38,880 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:33:38,880 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:33:38,880 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:33:40,747 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 55 for LOIs [2024-11-09 07:33:40,760 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:33:40,761 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:33:51,925 WARN L286 SmtUtils]: Spent 9.97s on a formula simplification. DAG size of input: 107 DAG size of output: 43 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:34:39,299 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11762#(exists ((|v_ULTIMATE.start_main_~z~0#1_91| Int) (|v_ULTIMATE.start_main_~x~0#1_160| Int)) (and (<= 2 |ULTIMATE.start_main_~c~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~az~0#1|) (<= |ULTIMATE.start_main_~az~0#1| 400) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_160| |v_ULTIMATE.start_main_~z~0#1_91|)) (exists ((|v_ULTIMATE.start_main_~x~0#1_159| Int) (|v_ULTIMATE.start_main_~y~0#1_131| Int)) (and (= |v_ULTIMATE.start_main_~x~0#1_160| (+ (* |v_ULTIMATE.start_main_~x~0#1_159| |v_ULTIMATE.start_main_~z~0#1_91|) |ULTIMATE.start_main_~a~0#1|)) (<= (* |v_ULTIMATE.start_main_~y~0#1_131| |v_ULTIMATE.start_main_~z~0#1_91|) 9223372036854775807) (= (* |v_ULTIMATE.start_main_~y~0#1_131| |v_ULTIMATE.start_main_~z~0#1_91|) |ULTIMATE.start_main_~y~0#1|) (<= (+ (* |v_ULTIMATE.start_main_~x~0#1_159| |v_ULTIMATE.start_main_~z~0#1_91|) |ULTIMATE.start_main_~a~0#1|) 9223372036854775807) (= (+ |v_ULTIMATE.start_main_~x~0#1_159| (* |v_ULTIMATE.start_main_~y~0#1_131| |ULTIMATE.start_main_~az~0#1|)) (+ (* |v_ULTIMATE.start_main_~x~0#1_159| |v_ULTIMATE.start_main_~z~0#1_91|) |ULTIMATE.start_main_~a~0#1|)))) (<= |v_ULTIMATE.start_main_~z~0#1_91| 20) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= 0 |v_ULTIMATE.start_main_~z~0#1_91|) (<= |ULTIMATE.start_main_~k~0#1| 20)))' at error location [2024-11-09 07:34:39,299 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:34:39,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:34:39,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-09 07:34:39,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278065014] [2024-11-09 07:34:39,300 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:34:39,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:34:39,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:34:39,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:34:39,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=1655, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 07:34:39,302 INFO L87 Difference]: Start difference. First operand 123 states and 128 transitions. Second operand has 13 states, 10 states have (on average 9.3) internal successors, (93), 13 states have internal predecessors, (93), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:34:42,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:34:42,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:34:42,208 INFO L93 Difference]: Finished difference Result 144 states and 150 transitions. [2024-11-09 07:34:42,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 07:34:42,209 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 9.3) internal successors, (93), 13 states have internal predecessors, (93), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Word has length 110 [2024-11-09 07:34:42,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:34:42,210 INFO L225 Difference]: With dead ends: 144 [2024-11-09 07:34:42,210 INFO L226 Difference]: Without dead ends: 142 [2024-11-09 07:34:42,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 184 SyntacticMatches, 5 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 59.0s TimeCoverageRelationStatistics Valid=339, Invalid=1731, Unknown=0, NotChecked=0, Total=2070 [2024-11-09 07:34:42,212 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 83 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:34:42,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 124 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 07:34:42,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-09 07:34:42,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-09 07:34:42,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 127 states have (on average 1.0236220472440944) internal successors, (130), 129 states have internal predecessors, (130), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 07:34:42,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 148 transitions. [2024-11-09 07:34:42,252 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 148 transitions. Word has length 110 [2024-11-09 07:34:42,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:34:42,252 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 148 transitions. [2024-11-09 07:34:42,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 9.3) internal successors, (93), 13 states have internal predecessors, (93), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:34:42,253 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 148 transitions. [2024-11-09 07:34:42,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 07:34:42,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:34:42,254 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:34:42,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-09 07:34:42,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:34:42,458 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:34:42,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:34:42,459 INFO L85 PathProgramCache]: Analyzing trace with hash 2110736871, now seen corresponding path program 3 times [2024-11-09 07:34:42,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:34:42,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372749975] [2024-11-09 07:34:42,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:34:42,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:34:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:34:42,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145459008] [2024-11-09 07:34:42,506 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:34:42,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:34:42,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:34:42,510 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:34:42,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 07:34:42,727 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:34:42,727 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:34:42,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 07:34:42,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:34:43,809 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 07:34:43,809 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:34:44,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:34:44,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372749975] [2024-11-09 07:34:44,797 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:34:44,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145459008] [2024-11-09 07:34:44,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145459008] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:34:44,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [321089336] [2024-11-09 07:34:44,799 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 07:34:44,799 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:34:44,807 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:34:44,808 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:34:44,815 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:34:47,497 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 55 for LOIs [2024-11-09 07:34:47,514 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:34:47,515 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:35:20,666 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12619#(and (<= 2 |ULTIMATE.start_main_~c~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~az~0#1|) (exists ((|v_ULTIMATE.start_main_~x~0#1_166| Int) (|v_ULTIMATE.start_main_~y~0#1_141| Int) (|v_ULTIMATE.start_main_~z~0#1_92| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_141| |v_ULTIMATE.start_main_~z~0#1_92|)) (<= 0 (+ (* |v_ULTIMATE.start_main_~x~0#1_166| |v_ULTIMATE.start_main_~z~0#1_92|) 9223372036854775808)) (= (+ (* |v_ULTIMATE.start_main_~x~0#1_166| |v_ULTIMATE.start_main_~z~0#1_92|) |ULTIMATE.start_main_~a~0#1|) (+ (* |v_ULTIMATE.start_main_~y~0#1_141| |ULTIMATE.start_main_~az~0#1|) |v_ULTIMATE.start_main_~x~0#1_166|)) (<= 0 |v_ULTIMATE.start_main_~z~0#1_92|) (<= |v_ULTIMATE.start_main_~z~0#1_92| 20) (= (+ (* |v_ULTIMATE.start_main_~x~0#1_166| |v_ULTIMATE.start_main_~z~0#1_92|) |ULTIMATE.start_main_~a~0#1|) |ULTIMATE.start_main_~x~0#1|) (<= (+ (* |v_ULTIMATE.start_main_~x~0#1_166| |v_ULTIMATE.start_main_~z~0#1_92|) |ULTIMATE.start_main_~a~0#1|) 9223372036854775807))) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 20))' at error location [2024-11-09 07:35:20,667 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:35:20,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:35:20,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 07:35:20,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103658569] [2024-11-09 07:35:20,667 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:35:20,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:35:20,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:35:20,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:35:20,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=1369, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 07:35:20,668 INFO L87 Difference]: Start difference. First operand 142 states and 148 transitions. Second operand has 9 states, 7 states have (on average 15.571428571428571) internal successors, (109), 9 states have internal predecessors, (109), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 07:35:22,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:35:22,142 INFO L93 Difference]: Finished difference Result 145 states and 151 transitions. [2024-11-09 07:35:22,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 07:35:22,142 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 15.571428571428571) internal successors, (109), 9 states have internal predecessors, (109), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 130 [2024-11-09 07:35:22,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:35:22,144 INFO L225 Difference]: With dead ends: 145 [2024-11-09 07:35:22,144 INFO L226 Difference]: Without dead ends: 144 [2024-11-09 07:35:22,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 247 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 33.5s TimeCoverageRelationStatistics Valid=271, Invalid=1369, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 07:35:22,145 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 21 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:35:22,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 91 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 07:35:22,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-09 07:35:22,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-09 07:35:22,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 129 states have (on average 1.0232558139534884) internal successors, (132), 131 states have internal predecessors, (132), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 07:35:22,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 150 transitions. [2024-11-09 07:35:22,173 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 150 transitions. Word has length 130 [2024-11-09 07:35:22,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:35:22,173 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 150 transitions. [2024-11-09 07:35:22,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 15.571428571428571) internal successors, (109), 9 states have internal predecessors, (109), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 07:35:22,174 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 150 transitions. [2024-11-09 07:35:22,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-09 07:35:22,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:35:22,175 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:35:22,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-09 07:35:22,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:35:22,376 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-09 07:35:22,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:35:22,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1654007059, now seen corresponding path program 5 times [2024-11-09 07:35:22,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:35:22,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674359915] [2024-11-09 07:35:22,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:35:22,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:35:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:35:22,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2139815197] [2024-11-09 07:35:22,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:35:22,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:35:22,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:35:22,439 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:35:22,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc07225-85a6-407f-9677-ff1ce1d47e55/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 07:35:26,948 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-09 07:35:26,949 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:35:26,952 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-09 07:35:26,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:35:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 07:35:30,342 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:36:38,196 WARN L286 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:38:36,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:38:36,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674359915] [2024-11-09 07:38:36,261 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:38:36,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139815197] [2024-11-09 07:38:36,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139815197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:38:36,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1979935207] [2024-11-09 07:38:36,264 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 07:38:36,264 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:38:36,264 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:38:36,265 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:38:36,265 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:38:38,655 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 55 for LOIs [2024-11-09 07:38:38,679 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:38:38,680 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:39:03,237 WARN L286 SmtUtils]: Spent 13.99s on a formula simplification. DAG size of input: 107 DAG size of output: 43 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:40:06,640 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13774#(exists ((|v_ULTIMATE.start_main_~x~0#1_192| Int) (|v_ULTIMATE.start_main_~z~0#1_103| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_192| |v_ULTIMATE.start_main_~z~0#1_103|)) (<= 2 |ULTIMATE.start_main_~c~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~az~0#1|) (exists ((|v_ULTIMATE.start_main_~x~0#1_191| Int) (|v_ULTIMATE.start_main_~y~0#1_165| Int)) (and (= |ULTIMATE.start_main_~y~0#1| (* |v_ULTIMATE.start_main_~y~0#1_165| |v_ULTIMATE.start_main_~z~0#1_103|)) (<= (* |v_ULTIMATE.start_main_~y~0#1_165| |v_ULTIMATE.start_main_~z~0#1_103|) 9223372036854775807) (= |v_ULTIMATE.start_main_~x~0#1_192| (+ |ULTIMATE.start_main_~a~0#1| (* |v_ULTIMATE.start_main_~x~0#1_191| |v_ULTIMATE.start_main_~z~0#1_103|))) (= (+ |v_ULTIMATE.start_main_~x~0#1_191| (* |v_ULTIMATE.start_main_~y~0#1_165| |ULTIMATE.start_main_~az~0#1|)) (+ |ULTIMATE.start_main_~a~0#1| (* |v_ULTIMATE.start_main_~x~0#1_191| |v_ULTIMATE.start_main_~z~0#1_103|))) (<= (+ |ULTIMATE.start_main_~a~0#1| (* |v_ULTIMATE.start_main_~x~0#1_191| |v_ULTIMATE.start_main_~z~0#1_103|)) 9223372036854775807))) (<= |ULTIMATE.start_main_~az~0#1| 400) (<= 0 |v_ULTIMATE.start_main_~z~0#1_103|) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 20) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= |v_ULTIMATE.start_main_~z~0#1_103| 20) (<= |ULTIMATE.start_main_~k~0#1| 20)))' at error location [2024-11-09 07:40:06,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:40:06,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:40:06,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-09 07:40:06,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646789500] [2024-11-09 07:40:06,641 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:40:06,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 07:40:06,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:40:06,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 07:40:06,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=541, Invalid=3221, Unknown=20, NotChecked=0, Total=3782 [2024-11-09 07:40:06,644 INFO L87 Difference]: Start difference. First operand 144 states and 150 transitions. Second operand has 19 states, 16 states have (on average 6.9375) internal successors, (111), 19 states have internal predecessors, (111), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 07:40:09,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:40:11,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]