./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/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_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/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_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/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 6977cec8a403ff3f16926270da45a38f7b1f51a39c72ba3797fb74b9637fd796 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:59:22,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:59:22,992 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:59:23,002 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:59:23,003 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:59:23,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:59:23,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:59:23,037 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:59:23,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:59:23,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:59:23,039 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:59:23,040 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:59:23,041 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:59:23,041 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:59:23,042 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:59:23,042 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:59:23,043 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:59:23,043 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:59:23,044 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:59:23,045 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:59:23,045 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:59:23,046 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:59:23,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:59:23,048 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:59:23,048 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:59:23,049 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:59:23,049 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:59:23,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:59:23,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:59:23,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:59:23,051 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:59:23,052 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:59:23,052 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:59:23,053 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:59:23,053 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:59:23,054 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:59:23,054 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:59:23,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:59:23,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:59:23,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:59:23,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:59:23,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:59:23,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:59:23,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:59:23,059 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:59:23,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:59:23,059 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:59:23,060 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:59:23,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:59:23,060 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_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6977cec8a403ff3f16926270da45a38f7b1f51a39c72ba3797fb74b9637fd796 [2024-11-09 05:59:23,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:59:23,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:59:23,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:59:23,522 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:59:23,523 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:59:23,525 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c Unable to find full path for "g++" [2024-11-09 05:59:26,252 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:59:26,574 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:59:26,575 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c [2024-11-09 05:59:26,595 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/data/b25326053/969765df07ba46b9969121a5903f4989/FLAG1bba23368 [2024-11-09 05:59:26,870 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/data/b25326053/969765df07ba46b9969121a5903f4989 [2024-11-09 05:59:26,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:59:26,878 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:59:26,880 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:59:26,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:59:26,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:59:26,892 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:59:26" (1/1) ... [2024-11-09 05:59:26,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb4f882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:26, skipping insertion in model container [2024-11-09 05:59:26,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:59:26" (1/1) ... [2024-11-09 05:59:26,937 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:59:27,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:59:27,281 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:59:27,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:59:27,336 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:59:27,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:27 WrapperNode [2024-11-09 05:59:27,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:59:27,339 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:59:27,339 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:59:27,339 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:59:27,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:27" (1/1) ... [2024-11-09 05:59:27,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:27" (1/1) ... [2024-11-09 05:59:27,397 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2024-11-09 05:59:27,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:59:27,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:59:27,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:59:27,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:59:27,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:27" (1/1) ... [2024-11-09 05:59:27,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:27" (1/1) ... [2024-11-09 05:59:27,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:27" (1/1) ... [2024-11-09 05:59:27,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:27" (1/1) ... [2024-11-09 05:59:27,425 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:27" (1/1) ... [2024-11-09 05:59:27,432 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:27" (1/1) ... [2024-11-09 05:59:27,434 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:27" (1/1) ... [2024-11-09 05:59:27,436 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:27" (1/1) ... [2024-11-09 05:59:27,440 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:59:27,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:59:27,442 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:59:27,442 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:59:27,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:27" (1/1) ... [2024-11-09 05:59:27,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:59:27,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:59:27,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:59:27,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:59:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:59:27,538 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:59:27,538 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:59:27,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:59:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:59:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:59:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:59:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:59:27,642 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:59:27,646 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:59:28,209 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-09 05:59:28,209 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:59:28,277 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:59:28,278 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 05:59:28,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:59:28 BoogieIcfgContainer [2024-11-09 05:59:28,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:59:28,282 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:59:28,283 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:59:28,288 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:59:28,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:59:26" (1/3) ... [2024-11-09 05:59:28,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3307fc30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:59:28, skipping insertion in model container [2024-11-09 05:59:28,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:59:27" (2/3) ... [2024-11-09 05:59:28,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3307fc30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:59:28, skipping insertion in model container [2024-11-09 05:59:28,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:59:28" (3/3) ... [2024-11-09 05:59:28,293 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound20.c [2024-11-09 05:59:28,321 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:59:28,322 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-09 05:59:28,457 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:59:28,467 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;@36d6f6bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:59:28,468 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-09 05:59:28,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 59 states have internal predecessors, (64), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:59:28,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 05:59:28,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:28,487 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:59:28,488 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:59:28,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:28,498 INFO L85 PathProgramCache]: Analyzing trace with hash 31241006, now seen corresponding path program 1 times [2024-11-09 05:59:28,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:59:28,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574833283] [2024-11-09 05:59:28,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:28,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:59:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:28,749 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 05:59:28,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:59:28,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574833283] [2024-11-09 05:59:28,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574833283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:59:28,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:59:28,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:59:28,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448389678] [2024-11-09 05:59:28,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:59:28,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:59:28,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:59:28,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:59:28,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:59:28,795 INFO L87 Difference]: Start difference. First operand has 72 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 59 states have internal predecessors, (64), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 05:59:28,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:59:28,846 INFO L93 Difference]: Finished difference Result 119 states and 136 transitions. [2024-11-09 05:59:28,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:59:28,849 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 15 [2024-11-09 05:59:28,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:59:28,858 INFO L225 Difference]: With dead ends: 119 [2024-11-09 05:59:28,859 INFO L226 Difference]: Without dead ends: 68 [2024-11-09 05:59:28,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:59:28,867 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:59:28,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:59:28,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-09 05:59:28,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-09 05:59:28,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 34 states have (on average 1.7647058823529411) internal successors, (60), 57 states have internal predecessors, (60), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:59:28,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2024-11-09 05:59:28,936 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 15 [2024-11-09 05:59:28,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:59:28,938 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2024-11-09 05:59:28,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 05:59:28,939 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2024-11-09 05:59:28,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 05:59:28,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:28,942 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:59:28,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:59:28,943 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:59:28,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:28,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1026206095, now seen corresponding path program 1 times [2024-11-09 05:59:28,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:59:28,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076579555] [2024-11-09 05:59:28,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:28,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:59:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:59:29,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [649407042] [2024-11-09 05:59:29,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:29,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:59:29,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:59:29,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:59:29,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:59:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:29,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:59:29,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:59:29,231 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:59:29,233 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:59:29,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:59:29,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076579555] [2024-11-09 05:59:29,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:59:29,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649407042] [2024-11-09 05:59:29,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649407042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:59:29,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:59:29,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:59:29,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962666535] [2024-11-09 05:59:29,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:59:29,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:59:29,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:59:29,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:59:29,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:59:29,250 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 05:59:29,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:59:29,445 INFO L93 Difference]: Finished difference Result 142 states and 161 transitions. [2024-11-09 05:59:29,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:59:29,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 20 [2024-11-09 05:59:29,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:59:29,449 INFO L225 Difference]: With dead ends: 142 [2024-11-09 05:59:29,449 INFO L226 Difference]: Without dead ends: 95 [2024-11-09 05:59:29,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:59:29,452 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 20 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:59:29,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 116 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:59:29,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-09 05:59:29,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 89. [2024-11-09 05:59:29,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 50 states have (on average 1.66) internal successors, (83), 73 states have internal predecessors, (83), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 05:59:29,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 109 transitions. [2024-11-09 05:59:29,482 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 109 transitions. Word has length 20 [2024-11-09 05:59:29,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:59:29,483 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 109 transitions. [2024-11-09 05:59:29,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 05:59:29,484 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 109 transitions. [2024-11-09 05:59:29,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 05:59:29,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:29,489 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:59:29,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 05:59:29,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:59:29,691 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:59:29,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:29,692 INFO L85 PathProgramCache]: Analyzing trace with hash 533185486, now seen corresponding path program 1 times [2024-11-09 05:59:29,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:59:29,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305500723] [2024-11-09 05:59:29,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:29,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:59:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:29,898 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:59:29,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:59:29,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305500723] [2024-11-09 05:59:29,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305500723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:59:29,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:59:29,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:59:29,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399970471] [2024-11-09 05:59:29,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:59:29,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:59:29,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:59:29,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:59:29,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:59:29,903 INFO L87 Difference]: Start difference. First operand 89 states and 109 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:59:30,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:59:30,072 INFO L93 Difference]: Finished difference Result 89 states and 109 transitions. [2024-11-09 05:59:30,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:59:30,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 26 [2024-11-09 05:59:30,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:59:30,075 INFO L225 Difference]: With dead ends: 89 [2024-11-09 05:59:30,076 INFO L226 Difference]: Without dead ends: 87 [2024-11-09 05:59:30,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:59:30,078 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 39 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:59:30,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 62 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:59:30,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-09 05:59:30,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-09 05:59:30,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 50 states have (on average 1.6) internal successors, (80), 71 states have internal predecessors, (80), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 05:59:30,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 106 transitions. [2024-11-09 05:59:30,118 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 106 transitions. Word has length 26 [2024-11-09 05:59:30,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:59:30,119 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 106 transitions. [2024-11-09 05:59:30,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:59:30,120 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 106 transitions. [2024-11-09 05:59:30,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 05:59:30,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:30,121 INFO L215 NwaCegarLoop]: trace histogram [3, 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 05:59:30,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:59:30,125 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:59:30,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:30,126 INFO L85 PathProgramCache]: Analyzing trace with hash -651120467, now seen corresponding path program 1 times [2024-11-09 05:59:30,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:59:30,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206169821] [2024-11-09 05:59:30,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:30,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:59:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:59:30,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697494463] [2024-11-09 05:59:30,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:30,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:59:30,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:59:30,220 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:59:30,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:59:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:30,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:59:30,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:59:30,380 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:59:30,381 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:59:30,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:59:30,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206169821] [2024-11-09 05:59:30,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:59:30,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697494463] [2024-11-09 05:59:30,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697494463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:59:30,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:59:30,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:59:30,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484160626] [2024-11-09 05:59:30,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:59:30,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:59:30,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:59:30,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:59:30,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:59:30,387 INFO L87 Difference]: Start difference. First operand 87 states and 106 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:59:30,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:59:30,608 INFO L93 Difference]: Finished difference Result 121 states and 149 transitions. [2024-11-09 05:59:30,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:59:30,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 27 [2024-11-09 05:59:30,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:59:30,611 INFO L225 Difference]: With dead ends: 121 [2024-11-09 05:59:30,612 INFO L226 Difference]: Without dead ends: 117 [2024-11-09 05:59:30,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:59:30,614 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 37 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:59:30,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 90 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:59:30,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-09 05:59:30,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 104. [2024-11-09 05:59:30,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.5692307692307692) internal successors, (102), 86 states have internal predecessors, (102), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:59:30,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2024-11-09 05:59:30,636 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 27 [2024-11-09 05:59:30,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:59:30,637 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2024-11-09 05:59:30,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:59:30,637 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2024-11-09 05:59:30,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 05:59:30,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:30,639 INFO L215 NwaCegarLoop]: trace histogram [3, 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 05:59:30,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:59:30,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:59:30,841 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:59:30,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:30,842 INFO L85 PathProgramCache]: Analyzing trace with hash -651119057, now seen corresponding path program 1 times [2024-11-09 05:59:30,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:59:30,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76194648] [2024-11-09 05:59:30,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:30,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:59:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:31,028 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:59:31,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:59:31,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76194648] [2024-11-09 05:59:31,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76194648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:59:31,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:59:31,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:59:31,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125682062] [2024-11-09 05:59:31,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:59:31,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:59:31,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:59:31,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:59:31,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:59:31,036 INFO L87 Difference]: Start difference. First operand 104 states and 132 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:59:31,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:59:31,164 INFO L93 Difference]: Finished difference Result 111 states and 137 transitions. [2024-11-09 05:59:31,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:59:31,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 27 [2024-11-09 05:59:31,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:59:31,167 INFO L225 Difference]: With dead ends: 111 [2024-11-09 05:59:31,167 INFO L226 Difference]: Without dead ends: 110 [2024-11-09 05:59:31,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:59:31,170 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 14 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:59:31,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 111 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:59:31,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-09 05:59:31,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 104. [2024-11-09 05:59:31,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.5538461538461539) internal successors, (101), 86 states have internal predecessors, (101), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:59:31,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 131 transitions. [2024-11-09 05:59:31,198 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 131 transitions. Word has length 27 [2024-11-09 05:59:31,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:59:31,199 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 131 transitions. [2024-11-09 05:59:31,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:59:31,200 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 131 transitions. [2024-11-09 05:59:31,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 05:59:31,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:31,204 INFO L215 NwaCegarLoop]: trace histogram [3, 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 05:59:31,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:59:31,205 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:59:31,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:31,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1338458959, now seen corresponding path program 1 times [2024-11-09 05:59:31,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:59:31,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606931834] [2024-11-09 05:59:31,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:31,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:59:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:31,415 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:59:31,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:59:31,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606931834] [2024-11-09 05:59:31,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606931834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:59:31,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:59:31,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:59:31,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407118839] [2024-11-09 05:59:31,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:59:31,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:59:31,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:59:31,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:59:31,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:59:31,421 INFO L87 Difference]: Start difference. First operand 104 states and 131 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:59:31,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:59:31,890 INFO L93 Difference]: Finished difference Result 119 states and 145 transitions. [2024-11-09 05:59:31,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:59:31,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 29 [2024-11-09 05:59:31,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:59:31,897 INFO L225 Difference]: With dead ends: 119 [2024-11-09 05:59:31,897 INFO L226 Difference]: Without dead ends: 118 [2024-11-09 05:59:31,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:59:31,899 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 85 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:59:31,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 86 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:59:31,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-09 05:59:31,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 108. [2024-11-09 05:59:31,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.5217391304347827) internal successors, (105), 90 states have internal predecessors, (105), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:59:31,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 135 transitions. [2024-11-09 05:59:31,940 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 135 transitions. Word has length 29 [2024-11-09 05:59:31,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:59:31,941 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 135 transitions. [2024-11-09 05:59:31,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:59:31,941 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 135 transitions. [2024-11-09 05:59:31,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 05:59:31,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:31,943 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-09 05:59:31,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 05:59:31,944 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:59:31,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:31,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1457445148, now seen corresponding path program 1 times [2024-11-09 05:59:31,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:59:31,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865160064] [2024-11-09 05:59:31,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:31,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:59:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:59:31,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [868075827] [2024-11-09 05:59:31,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:31,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:59:31,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:59:31,979 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:59:31,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:59:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:32,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:59:32,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:59:32,302 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:59:32,302 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:59:32,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:59:32,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865160064] [2024-11-09 05:59:32,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:59:32,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868075827] [2024-11-09 05:59:32,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868075827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:59:32,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:59:32,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:59:32,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619346857] [2024-11-09 05:59:32,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:59:32,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:59:32,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:59:32,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:59:32,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:59:32,309 INFO L87 Difference]: Start difference. First operand 108 states and 135 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:59:32,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:59:32,455 INFO L93 Difference]: Finished difference Result 119 states and 142 transitions. [2024-11-09 05:59:32,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:59:32,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 30 [2024-11-09 05:59:32,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:59:32,457 INFO L225 Difference]: With dead ends: 119 [2024-11-09 05:59:32,458 INFO L226 Difference]: Without dead ends: 116 [2024-11-09 05:59:32,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:59:32,460 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 30 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:59:32,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 83 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:59:32,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-09 05:59:32,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 109. [2024-11-09 05:59:32,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 91 states have internal predecessors, (104), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:59:32,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2024-11-09 05:59:32,508 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 30 [2024-11-09 05:59:32,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:59:32,509 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2024-11-09 05:59:32,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 05:59:32,509 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2024-11-09 05:59:32,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 05:59:32,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:32,514 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:59:32,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:59:32,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 05:59:32,719 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:59:32,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:32,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1695070897, now seen corresponding path program 1 times [2024-11-09 05:59:32,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:59:32,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945468338] [2024-11-09 05:59:32,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:32,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:59:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:59:32,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557241669] [2024-11-09 05:59:32,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:32,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:59:32,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:59:32,789 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:59:32,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:59:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:32,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:59:32,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:59:33,282 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:59:33,282 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:59:33,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:59:33,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945468338] [2024-11-09 05:59:33,758 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:59:33,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557241669] [2024-11-09 05:59:33,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557241669] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:59:33,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [413442076] [2024-11-09 05:59:33,807 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 05:59:33,807 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:59:33,816 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:59:33,826 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:59:33,828 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:59:38,743 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:59:38,746 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:59:38,748 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:59:40,756 WARN L851 $PredicateComparison]: unable to prove that (and (<= 1 |c_#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1_45| Int) (|v_ULTIMATE.start_main_~B~0#1_40| Int)) (let ((.cse3 (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296))) (and (let ((.cse5 (mod |c_ULTIMATE.start_main_~A~0#1| 4294967296))) (let ((.cse2 (= .cse5 |c_ULTIMATE.start_main_~r~0#1|))) (or (let ((.cse1 (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2))) (let ((.cse0 (* .cse1 .cse3))) (and (<= 0 (+ .cse0 4611686018427387903)) (<= .cse0 4611686018427387904) (<= .cse1 4611686018427387904) (<= 0 (+ .cse1 4611686018427387903)) (= (mod |v_ULTIMATE.start_main_~p~0#1_45| 2) 0) (= (+ (* .cse0 2) |c_ULTIMATE.start_main_~d~0#1|) 0) .cse2 (<= 0 (+ .cse0 |c_ULTIMATE.start_main_~r~0#1|))))) (let ((.cse4 (select |c_#memory_int| 1))) (and (= (select |c_#valid| 0) 0) (= (select |c_#valid| 3) 1) (<= 1 .cse3) (= 2 (select |c_#length| 1)) (= (select |c_#valid| 1) 1) (= |v_ULTIMATE.start_main_~p~0#1_45| 1) (= (select |c_#length| 2) 10) (= |c_ULTIMATE.start_main_~d~0#1| .cse3) (= (select |c_#valid| 2) 1) (= (select .cse4 1) 0) .cse2 (= (select |c_#length| 3) 12) (= 48 (select .cse4 0)) (<= .cse5 20) (<= .cse3 20)))))) (<= (+ 9223372036854775809 (* .cse3 |v_ULTIMATE.start_main_~p~0#1_45|)) 0)))) (= 0 |c_ULTIMATE.start_main_~q~0#1|)) is different from false [2024-11-09 05:59:50,279 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2293#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~p~0#1_45| Int) (|v_ULTIMATE.start_main_~B~0#1_40| Int)) (and (or (and (= (select |#length| 3) 12) (= (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296) |ULTIMATE.start_main_~d~0#1|) (<= 1 (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296)) (= |v_ULTIMATE.start_main_~p~0#1_45| 1) (= 2 (select |#length| 1)) (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 20) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~r~0#1| (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select (select |#memory_int| 1) 0) 48) (= 10 (select |#length| 2)) (= (select (select |#memory_int| 1) 1) 0) (<= (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296) 20)) (and (<= 0 (+ (* (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296)) 4611686018427387903)) (<= (* (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296)) 4611686018427387904) (<= (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) 4611686018427387904) (<= 0 (+ (* (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296)) |ULTIMATE.start_main_~r~0#1|)) (<= 0 (+ (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) 4611686018427387903)) (= (+ (* (* (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296)) 2) |ULTIMATE.start_main_~d~0#1|) 0) (= (mod |v_ULTIMATE.start_main_~p~0#1_45| 2) 0) (= |ULTIMATE.start_main_~r~0#1| (mod |ULTIMATE.start_main_~A~0#1| 4294967296)))) (<= (+ 9223372036854775809 (* (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296) |v_ULTIMATE.start_main_~p~0#1_45|)) 0))))' at error location [2024-11-09 05:59:50,280 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:59:50,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:59:50,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 05:59:50,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135944282] [2024-11-09 05:59:50,281 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:59:50,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:59:50,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:59:50,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:59:50,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=532, Unknown=4, NotChecked=48, Total=702 [2024-11-09 05:59:50,285 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand has 7 states, 5 states have (on average 3.2) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 05:59:50,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:59:50,948 INFO L93 Difference]: Finished difference Result 125 states and 155 transitions. [2024-11-09 05:59:50,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:59:50,949 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 37 [2024-11-09 05:59:50,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:59:50,951 INFO L225 Difference]: With dead ends: 125 [2024-11-09 05:59:50,951 INFO L226 Difference]: Without dead ends: 117 [2024-11-09 05:59:50,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=164, Invalid=766, Unknown=4, NotChecked=58, Total=992 [2024-11-09 05:59:50,954 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 114 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:59:50,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 157 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:59:50,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-09 05:59:50,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-11-09 05:59:50,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 95 states have internal predecessors, (107), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 05:59:50,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 141 transitions. [2024-11-09 05:59:50,993 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 141 transitions. Word has length 37 [2024-11-09 05:59:50,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:59:50,994 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 141 transitions. [2024-11-09 05:59:50,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 05:59:50,997 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 141 transitions. [2024-11-09 05:59:50,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 05:59:50,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:50,998 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:59:51,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 05:59:51,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:59:51,199 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:59:51,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:51,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1007590306, now seen corresponding path program 1 times [2024-11-09 05:59:51,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:59:51,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955189996] [2024-11-09 05:59:51,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:51,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:59:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:59:51,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422809482] [2024-11-09 05:59:51,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:51,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:59:51,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:59:51,251 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:59:51,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:59:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:51,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:59:51,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:59:51,601 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 05:59:51,601 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:59:51,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:59:51,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955189996] [2024-11-09 05:59:51,907 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:59:51,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422809482] [2024-11-09 05:59:51,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422809482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:59:51,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1464642546] [2024-11-09 05:59:51,913 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 05:59:51,915 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:59:51,916 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:59:51,916 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:59:51,917 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:59:54,536 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 05:59:54,538 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 05:59:54,539 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:59:56,418 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2782#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~B~0#1_41| Int) (|v_ULTIMATE.start_main_~p~0#1_52| Int)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_41| 4294967296) |v_ULTIMATE.start_main_~p~0#1_52|))))' at error location [2024-11-09 05:59:56,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:59:56,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:59:56,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 05:59:56,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797573790] [2024-11-09 05:59:56,419 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:59:56,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:59:56,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:59:56,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:59:56,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2024-11-09 05:59:56,423 INFO L87 Difference]: Start difference. First operand 115 states and 141 transitions. Second operand has 7 states, 5 states have (on average 3.4) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 05:59:57,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:59:57,130 INFO L93 Difference]: Finished difference Result 187 states and 240 transitions. [2024-11-09 05:59:57,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 05:59:57,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 38 [2024-11-09 05:59:57,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:59:57,135 INFO L225 Difference]: With dead ends: 187 [2024-11-09 05:59:57,135 INFO L226 Difference]: Without dead ends: 183 [2024-11-09 05:59:57,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=170, Invalid=760, Unknown=0, NotChecked=0, Total=930 [2024-11-09 05:59:57,137 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 163 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:59:57,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 195 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:59:57,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-09 05:59:57,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 174. [2024-11-09 05:59:57,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 128 states have (on average 1.3671875) internal successors, (175), 145 states have internal predecessors, (175), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-09 05:59:57,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 227 transitions. [2024-11-09 05:59:57,173 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 227 transitions. Word has length 38 [2024-11-09 05:59:57,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:59:57,174 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 227 transitions. [2024-11-09 05:59:57,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 05:59:57,174 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 227 transitions. [2024-11-09 05:59:57,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 05:59:57,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:57,176 INFO L215 NwaCegarLoop]: trace histogram [5, 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 05:59:57,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 05:59:57,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:59:57,381 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:59:57,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:57,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1380873637, now seen corresponding path program 1 times [2024-11-09 05:59:57,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:59:57,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202896934] [2024-11-09 05:59:57,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:57,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:59:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:57,678 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 05:59:57,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:59:57,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202896934] [2024-11-09 05:59:57,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202896934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:59:57,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:59:57,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:59:57,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683982996] [2024-11-09 05:59:57,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:59:57,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:59:57,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:59:57,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:59:57,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:59:57,682 INFO L87 Difference]: Start difference. First operand 174 states and 227 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:59:58,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:59:58,219 INFO L93 Difference]: Finished difference Result 183 states and 236 transitions. [2024-11-09 05:59:58,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:59:58,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 42 [2024-11-09 05:59:58,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:59:58,222 INFO L225 Difference]: With dead ends: 183 [2024-11-09 05:59:58,222 INFO L226 Difference]: Without dead ends: 168 [2024-11-09 05:59:58,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:59:58,224 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 39 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:59:58,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 117 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:59:58,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-09 05:59:58,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 141. [2024-11-09 05:59:58,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 101 states have (on average 1.4257425742574257) internal successors, (144), 118 states have internal predecessors, (144), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 05:59:58,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 184 transitions. [2024-11-09 05:59:58,255 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 184 transitions. Word has length 42 [2024-11-09 05:59:58,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:59:58,255 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 184 transitions. [2024-11-09 05:59:58,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:59:58,256 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 184 transitions. [2024-11-09 05:59:58,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 05:59:58,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:59:58,257 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:59:58,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 05:59:58,258 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 05:59:58,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:59:58,259 INFO L85 PathProgramCache]: Analyzing trace with hash 2071296717, now seen corresponding path program 1 times [2024-11-09 05:59:58,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:59:58,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891204841] [2024-11-09 05:59:58,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:58,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:59:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:58,406 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 05:59:58,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:59:58,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891204841] [2024-11-09 05:59:58,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891204841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:59:58,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917727359] [2024-11-09 05:59:58,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:59:58,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:59:58,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:59:58,410 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:59:58,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:59:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:59:58,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:59:58,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:59:58,554 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 05:59:58,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:59:58,694 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 05:59:58,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917727359] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:59:58,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [178617452] [2024-11-09 05:59:58,698 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 05:59:58,698 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:59:58,699 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:59:58,699 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:59:58,699 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:00:00,989 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 06:00:00,992 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:00:00,994 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:00:02,877 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3921#(and (<= 4611686018427387904 (* |ULTIMATE.start_main_~p~0#1| (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (<= 1 |#StackHeapBarrier|) (<= (* |ULTIMATE.start_main_~p~0#1| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (<= (* |ULTIMATE.start_main_~p~0#1| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 9223372036854775807) (= |ULTIMATE.start_main_~q~0#1| 0))' at error location [2024-11-09 06:00:02,878 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:00:02,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:00:02,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-09 06:00:02,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852529081] [2024-11-09 06:00:02,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:00:02,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:00:02,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:00:02,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:00:02,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-09 06:00:02,881 INFO L87 Difference]: Start difference. First operand 141 states and 184 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-09 06:00:03,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:00:03,147 INFO L93 Difference]: Finished difference Result 251 states and 323 transitions. [2024-11-09 06:00:03,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:00:03,148 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 44 [2024-11-09 06:00:03,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:00:03,150 INFO L225 Difference]: With dead ends: 251 [2024-11-09 06:00:03,151 INFO L226 Difference]: Without dead ends: 249 [2024-11-09 06:00:03,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-09 06:00:03,153 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 129 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:00:03,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 189 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:00:03,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-09 06:00:03,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 199. [2024-11-09 06:00:03,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 149 states have (on average 1.4161073825503356) internal successors, (211), 166 states have internal predecessors, (211), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-09 06:00:03,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 271 transitions. [2024-11-09 06:00:03,189 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 271 transitions. Word has length 44 [2024-11-09 06:00:03,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:00:03,190 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 271 transitions. [2024-11-09 06:00:03,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-09 06:00:03,191 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 271 transitions. [2024-11-09 06:00:03,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 06:00:03,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:00:03,192 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:00:03,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 06:00:03,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 06:00:03,393 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:00:03,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:00:03,394 INFO L85 PathProgramCache]: Analyzing trace with hash 160131140, now seen corresponding path program 2 times [2024-11-09 06:00:03,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:00:03,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314470581] [2024-11-09 06:00:03,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:00:03,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:00:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:00:03,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [87668936] [2024-11-09 06:00:03,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:00:03,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:00:03,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:00:03,437 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:00:03,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 06:00:03,513 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 06:00:03,513 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:00:03,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:00:03,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:00:04,372 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 7 proven. 23 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-09 06:00:04,372 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:00:04,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:00:04,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314470581] [2024-11-09 06:00:04,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:00:04,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87668936] [2024-11-09 06:00:04,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87668936] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:00:04,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2045503421] [2024-11-09 06:00:04,767 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 06:00:04,768 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:00:04,768 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:00:04,769 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:00:04,769 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:00:06,547 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 06:00:06,549 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:00:06,551 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:00:08,339 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4712#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~B~0#1_42| Int) (|v_ULTIMATE.start_main_~p~0#1_66| Int)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_42| 4294967296) |v_ULTIMATE.start_main_~p~0#1_66|))) (= |ULTIMATE.start_main_~q~0#1| 0))' at error location [2024-11-09 06:00:08,339 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:00:08,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:00:08,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 06:00:08,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495090327] [2024-11-09 06:00:08,340 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:00:08,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:00:08,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:00:08,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:00:08,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=806, Unknown=0, NotChecked=0, Total=992 [2024-11-09 06:00:08,342 INFO L87 Difference]: Start difference. First operand 199 states and 271 transitions. Second operand has 11 states, 8 states have (on average 3.25) internal successors, (26), 11 states have internal predecessors, (26), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 06:00:09,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:00:09,549 INFO L93 Difference]: Finished difference Result 272 states and 367 transitions. [2024-11-09 06:00:09,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:00:09,550 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 3.25) internal successors, (26), 11 states have internal predecessors, (26), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 55 [2024-11-09 06:00:09,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:00:09,553 INFO L225 Difference]: With dead ends: 272 [2024-11-09 06:00:09,553 INFO L226 Difference]: Without dead ends: 268 [2024-11-09 06:00:09,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=208, Invalid=914, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 06:00:09,556 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 152 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:00:09,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 258 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 06:00:09,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-09 06:00:09,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 199. [2024-11-09 06:00:09,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 149 states have (on average 1.4026845637583893) internal successors, (209), 166 states have internal predecessors, (209), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-09 06:00:09,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 269 transitions. [2024-11-09 06:00:09,595 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 269 transitions. Word has length 55 [2024-11-09 06:00:09,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:00:09,596 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 269 transitions. [2024-11-09 06:00:09,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 3.25) internal successors, (26), 11 states have internal predecessors, (26), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 06:00:09,597 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 269 transitions. [2024-11-09 06:00:09,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 06:00:09,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:00:09,599 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1] [2024-11-09 06:00:09,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 06:00:09,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:00:09,804 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:00:09,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:00:09,804 INFO L85 PathProgramCache]: Analyzing trace with hash -781600900, now seen corresponding path program 1 times [2024-11-09 06:00:09,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:00:09,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593602372] [2024-11-09 06:00:09,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:00:09,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:00:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:00:09,913 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 06:00:09,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:00:09,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593602372] [2024-11-09 06:00:09,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593602372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:00:09,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:00:09,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:00:09,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564582528] [2024-11-09 06:00:09,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:00:09,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:00:09,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:00:09,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:00:09,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:00:09,921 INFO L87 Difference]: Start difference. First operand 199 states and 269 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 06:00:10,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:00:10,030 INFO L93 Difference]: Finished difference Result 199 states and 269 transitions. [2024-11-09 06:00:10,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:00:10,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 62 [2024-11-09 06:00:10,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:00:10,033 INFO L225 Difference]: With dead ends: 199 [2024-11-09 06:00:10,033 INFO L226 Difference]: Without dead ends: 198 [2024-11-09 06:00:10,034 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 06:00:10,034 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 2 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:00:10,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 101 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:00:10,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-09 06:00:10,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-09 06:00:10,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 149 states have (on average 1.3825503355704698) internal successors, (206), 165 states have internal predecessors, (206), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-09 06:00:10,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 266 transitions. [2024-11-09 06:00:10,070 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 266 transitions. Word has length 62 [2024-11-09 06:00:10,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:00:10,070 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 266 transitions. [2024-11-09 06:00:10,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 06:00:10,071 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 266 transitions. [2024-11-09 06:00:10,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 06:00:10,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:00:10,073 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:00:10,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:00:10,074 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:00:10,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:00:10,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1540175985, now seen corresponding path program 1 times [2024-11-09 06:00:10,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:00:10,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177623024] [2024-11-09 06:00:10,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:00:10,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:00:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:00:10,423 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 06:00:10,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:00:10,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177623024] [2024-11-09 06:00:10,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177623024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:00:10,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:00:10,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:00:10,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462877599] [2024-11-09 06:00:10,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:00:10,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:00:10,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:00:10,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:00:10,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:00:10,427 INFO L87 Difference]: Start difference. First operand 198 states and 266 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:00:11,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:00:11,112 INFO L93 Difference]: Finished difference Result 359 states and 501 transitions. [2024-11-09 06:00:11,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:00:11,113 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2024-11-09 06:00:11,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:00:11,116 INFO L225 Difference]: With dead ends: 359 [2024-11-09 06:00:11,116 INFO L226 Difference]: Without dead ends: 358 [2024-11-09 06:00:11,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:00:11,119 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 94 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:00:11,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 228 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:00:11,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-09 06:00:11,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 300. [2024-11-09 06:00:11,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 239 states have (on average 1.4435146443514644) internal successors, (345), 255 states have internal predecessors, (345), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 06:00:11,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 429 transitions. [2024-11-09 06:00:11,168 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 429 transitions. Word has length 63 [2024-11-09 06:00:11,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:00:11,169 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 429 transitions. [2024-11-09 06:00:11,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:00:11,170 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 429 transitions. [2024-11-09 06:00:11,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 06:00:11,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:00:11,172 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:00:11,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:00:11,174 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:00:11,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:00:11,174 INFO L85 PathProgramCache]: Analyzing trace with hash 500815390, now seen corresponding path program 1 times [2024-11-09 06:00:11,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:00:11,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011989732] [2024-11-09 06:00:11,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:00:11,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:00:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:00:11,395 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-09 06:00:11,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:00:11,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011989732] [2024-11-09 06:00:11,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011989732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:00:11,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767336414] [2024-11-09 06:00:11,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:00:11,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:00:11,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:00:11,398 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:00:11,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 06:00:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:00:11,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:00:11,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:00:11,691 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 06:00:11,692 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:00:11,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767336414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:00:11,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:00:11,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-09 06:00:11,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166994103] [2024-11-09 06:00:11,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:00:11,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:00:11,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:00:11,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:00:11,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:00:11,694 INFO L87 Difference]: Start difference. First operand 300 states and 429 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:00:12,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:00:12,049 INFO L93 Difference]: Finished difference Result 359 states and 500 transitions. [2024-11-09 06:00:12,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:00:12,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2024-11-09 06:00:12,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:00:12,052 INFO L225 Difference]: With dead ends: 359 [2024-11-09 06:00:12,052 INFO L226 Difference]: Without dead ends: 358 [2024-11-09 06:00:12,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:00:12,055 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 48 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:00:12,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 97 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:00:12,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-09 06:00:12,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 309. [2024-11-09 06:00:12,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 248 states have (on average 1.4274193548387097) internal successors, (354), 264 states have internal predecessors, (354), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 06:00:12,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 438 transitions. [2024-11-09 06:00:12,112 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 438 transitions. Word has length 64 [2024-11-09 06:00:12,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:00:12,112 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 438 transitions. [2024-11-09 06:00:12,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:00:12,113 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 438 transitions. [2024-11-09 06:00:12,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 06:00:12,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:00:12,115 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:00:12,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 06:00:12,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:00:12,316 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:00:12,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:00:12,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1654591981, now seen corresponding path program 1 times [2024-11-09 06:00:12,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:00:12,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944439879] [2024-11-09 06:00:12,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:00:12,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:00:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:00:12,559 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-09 06:00:12,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:00:12,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944439879] [2024-11-09 06:00:12,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944439879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:00:12,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649579333] [2024-11-09 06:00:12,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:00:12,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:00:12,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:00:12,563 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:00:12,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 06:00:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:00:12,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:00:12,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:00:12,802 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 06:00:12,803 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:00:12,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649579333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:00:12,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:00:12,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 06:00:12,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282401357] [2024-11-09 06:00:12,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:00:12,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:00:12,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:00:12,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:00:12,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:00:12,806 INFO L87 Difference]: Start difference. First operand 309 states and 438 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:00:13,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:00:13,116 INFO L93 Difference]: Finished difference Result 316 states and 444 transitions. [2024-11-09 06:00:13,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:00:13,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2024-11-09 06:00:13,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:00:13,119 INFO L225 Difference]: With dead ends: 316 [2024-11-09 06:00:13,119 INFO L226 Difference]: Without dead ends: 314 [2024-11-09 06:00:13,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:00:13,121 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 28 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:00:13,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 79 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:00:13,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-09 06:00:13,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 312. [2024-11-09 06:00:13,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 251 states have (on average 1.4143426294820718) internal successors, (355), 267 states have internal predecessors, (355), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 06:00:13,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 439 transitions. [2024-11-09 06:00:13,184 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 439 transitions. Word has length 65 [2024-11-09 06:00:13,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:00:13,184 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 439 transitions. [2024-11-09 06:00:13,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:00:13,185 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 439 transitions. [2024-11-09 06:00:13,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 06:00:13,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:00:13,186 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:00:13,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 06:00:13,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:00:13,387 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:00:13,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:00:13,388 INFO L85 PathProgramCache]: Analyzing trace with hash -924991819, now seen corresponding path program 1 times [2024-11-09 06:00:13,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:00:13,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491471858] [2024-11-09 06:00:13,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:00:13,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:00:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:00:13,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [854502237] [2024-11-09 06:00:13,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:00:13,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:00:13,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:00:13,437 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:00:13,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 06:00:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:00:13,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:00:13,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:00:14,302 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 06:00:14,302 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:00:14,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:00:14,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491471858] [2024-11-09 06:00:14,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:00:14,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854502237] [2024-11-09 06:00:14,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854502237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:00:14,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1422349930] [2024-11-09 06:00:15,005 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:00:15,005 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:00:15,006 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:00:15,006 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:00:15,006 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:00:19,215 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:00:19,216 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:00:19,217 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:00:41,412 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8833#(exists ((|v_ULTIMATE.start_main_~B~0#1_43| Int) (|v_ULTIMATE.start_main_~q~0#1_44| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (+ 9223372036854775809 (* (mod |v_ULTIMATE.start_main_~B~0#1_43| 4294967296) |v_ULTIMATE.start_main_~q~0#1_44|)) 0) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_44| 9223372036854775808)) (exists ((|v_ULTIMATE.start_main_~p~0#1_78| Int)) (and (<= (div |v_ULTIMATE.start_main_~p~0#1_78| 2) 9223372036854775807) (or (and (not (= (mod |v_ULTIMATE.start_main_~p~0#1_78| 2) 0)) (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_78| 2)) 0)) (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_78| 2)))) (or (and (not (= (mod |v_ULTIMATE.start_main_~p~0#1_78| 2) 0)) (= |ULTIMATE.start_main_~p~0#1| (+ (div |v_ULTIMATE.start_main_~p~0#1_78| 2) 1)) (<= (+ |v_ULTIMATE.start_main_~p~0#1_78| 1) 0)) (and (= |ULTIMATE.start_main_~p~0#1| (div |v_ULTIMATE.start_main_~p~0#1_78| 2)) (or (= (mod |v_ULTIMATE.start_main_~p~0#1_78| 2) 0) (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_78| 1))))))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807)))' at error location [2024-11-09 06:00:41,412 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:00:41,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:00:41,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 06:00:41,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80400600] [2024-11-09 06:00:41,413 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:00:41,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:00:41,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:00:41,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:00:41,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=1626, Unknown=4, NotChecked=0, Total=1892 [2024-11-09 06:00:41,416 INFO L87 Difference]: Start difference. First operand 312 states and 439 transitions. Second operand has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 06:00:42,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:00:42,478 INFO L93 Difference]: Finished difference Result 389 states and 542 transitions. [2024-11-09 06:00:42,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:00:42,480 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 67 [2024-11-09 06:00:42,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:00:42,482 INFO L225 Difference]: With dead ends: 389 [2024-11-09 06:00:42,483 INFO L226 Difference]: Without dead ends: 388 [2024-11-09 06:00:42,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 22.7s TimeCoverageRelationStatistics Valid=279, Invalid=1787, Unknown=4, NotChecked=0, Total=2070 [2024-11-09 06:00:42,485 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 146 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:00:42,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 147 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:00:42,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-09 06:00:42,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 361. [2024-11-09 06:00:42,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 294 states have (on average 1.3877551020408163) internal successors, (408), 310 states have internal predecessors, (408), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-09 06:00:42,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 504 transitions. [2024-11-09 06:00:42,552 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 504 transitions. Word has length 67 [2024-11-09 06:00:42,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:00:42,553 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 504 transitions. [2024-11-09 06:00:42,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 06:00:42,553 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 504 transitions. [2024-11-09 06:00:42,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 06:00:42,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:00:42,555 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:00:42,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 06:00:42,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 06:00:42,756 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:00:42,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:00:42,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1390024762, now seen corresponding path program 1 times [2024-11-09 06:00:42,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:00:42,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229054899] [2024-11-09 06:00:42,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:00:42,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:00:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:00:42,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1059526580] [2024-11-09 06:00:42,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:00:42,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:00:42,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:00:42,831 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:00:42,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 06:00:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:00:42,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:00:42,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:00:43,744 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 06:00:43,745 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:00:44,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:00:44,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229054899] [2024-11-09 06:00:44,293 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:00:44,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059526580] [2024-11-09 06:00:44,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059526580] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:00:44,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [931778456] [2024-11-09 06:00:44,296 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:00:44,297 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:00:44,297 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:00:44,297 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:00:44,298 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:00:47,595 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:00:47,597 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:00:47,599 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:01:02,103 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10027#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~B~0#1_44| Int) (|v_ULTIMATE.start_main_~q~0#1_50| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_50| (mod |v_ULTIMATE.start_main_~B~0#1_44| 4294967296))) (<= |v_ULTIMATE.start_main_~q~0#1_50| 9223372036854775807))))' at error location [2024-11-09 06:01:02,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:01:02,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:01:02,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 06:01:02,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29023542] [2024-11-09 06:01:02,104 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:01:02,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:01:02,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:01:02,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:01:02,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=1682, Unknown=2, NotChecked=0, Total=1980 [2024-11-09 06:01:02,107 INFO L87 Difference]: Start difference. First operand 361 states and 504 transitions. Second operand has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 06:01:02,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:02,845 INFO L93 Difference]: Finished difference Result 424 states and 591 transitions. [2024-11-09 06:01:02,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:01:02,846 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 68 [2024-11-09 06:01:02,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:02,850 INFO L225 Difference]: With dead ends: 424 [2024-11-09 06:01:02,850 INFO L226 Difference]: Without dead ends: 423 [2024-11-09 06:01:02,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 833 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=305, Invalid=1763, Unknown=2, NotChecked=0, Total=2070 [2024-11-09 06:01:02,853 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 100 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:02,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 177 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:01:02,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-09 06:01:02,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 410. [2024-11-09 06:01:02,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 337 states have (on average 1.3620178041543027) internal successors, (459), 353 states have internal predecessors, (459), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 06:01:02,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 567 transitions. [2024-11-09 06:01:02,937 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 567 transitions. Word has length 68 [2024-11-09 06:01:02,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:02,938 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 567 transitions. [2024-11-09 06:01:02,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 06:01:02,939 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 567 transitions. [2024-11-09 06:01:02,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 06:01:02,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:02,940 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:01:02,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 06:01:03,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 06:01:03,145 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:01:03,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:03,147 INFO L85 PathProgramCache]: Analyzing trace with hash 141094743, now seen corresponding path program 1 times [2024-11-09 06:01:03,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:01:03,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739805623] [2024-11-09 06:01:03,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:03,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:01:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:03,343 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 06:01:03,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:01:03,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739805623] [2024-11-09 06:01:03,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739805623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:01:03,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:01:03,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:01:03,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112690992] [2024-11-09 06:01:03,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:01:03,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:01:03,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:01:03,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:01:03,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:01:03,346 INFO L87 Difference]: Start difference. First operand 410 states and 567 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 06:01:03,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:03,730 INFO L93 Difference]: Finished difference Result 410 states and 567 transitions. [2024-11-09 06:01:03,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:01:03,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2024-11-09 06:01:03,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:03,735 INFO L225 Difference]: With dead ends: 410 [2024-11-09 06:01:03,735 INFO L226 Difference]: Without dead ends: 409 [2024-11-09 06:01:03,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:01:03,736 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 71 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:03,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 87 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:01:03,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-09 06:01:03,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 397. [2024-11-09 06:01:03,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 325 states have (on average 1.3323076923076924) internal successors, (433), 340 states have internal predecessors, (433), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 06:01:03,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 541 transitions. [2024-11-09 06:01:03,816 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 541 transitions. Word has length 69 [2024-11-09 06:01:03,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:03,819 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 541 transitions. [2024-11-09 06:01:03,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 06:01:03,819 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 541 transitions. [2024-11-09 06:01:03,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 06:01:03,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:03,820 INFO L215 NwaCegarLoop]: trace histogram [11, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:01:03,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 06:01:03,821 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:01:03,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:03,822 INFO L85 PathProgramCache]: Analyzing trace with hash 135345122, now seen corresponding path program 3 times [2024-11-09 06:01:03,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:01:03,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298336763] [2024-11-09 06:01:03,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:03,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:01:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:01:03,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145649769] [2024-11-09 06:01:03,855 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:01:03,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:01:03,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:01:03,858 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:01:03,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 06:01:03,939 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:01:03,939 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:01:03,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:01:03,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:04,535 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-09 06:01:04,535 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:01:04,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:01:04,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298336763] [2024-11-09 06:01:04,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:01:04,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145649769] [2024-11-09 06:01:04,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145649769] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:01:04,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [830116959] [2024-11-09 06:01:04,802 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 06:01:04,803 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:01:04,803 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:01:04,803 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:01:04,804 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:01:06,310 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 06:01:06,312 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:01:06,314 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:01:08,392 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12317#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~B~0#1_45| Int) (|v_ULTIMATE.start_main_~p~0#1_97| Int)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_45| 4294967296) |v_ULTIMATE.start_main_~p~0#1_97|))))' at error location [2024-11-09 06:01:08,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:01:08,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:01:08,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 06:01:08,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866469331] [2024-11-09 06:01:08,393 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:01:08,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:01:08,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:01:08,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:01:08,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=771, Unknown=0, NotChecked=0, Total=930 [2024-11-09 06:01:08,395 INFO L87 Difference]: Start difference. First operand 397 states and 541 transitions. Second operand has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 11 states have internal predecessors, (33), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-09 06:01:09,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:09,751 INFO L93 Difference]: Finished difference Result 430 states and 575 transitions. [2024-11-09 06:01:09,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:01:09,752 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 11 states have internal predecessors, (33), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 72 [2024-11-09 06:01:09,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:09,756 INFO L225 Difference]: With dead ends: 430 [2024-11-09 06:01:09,756 INFO L226 Difference]: Without dead ends: 426 [2024-11-09 06:01:09,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=230, Invalid=1252, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 06:01:09,759 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 158 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:09,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 376 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 06:01:09,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-09 06:01:09,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 327. [2024-11-09 06:01:09,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 263 states have (on average 1.3003802281368821) internal successors, (342), 278 states have internal predecessors, (342), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 06:01:09,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 434 transitions. [2024-11-09 06:01:09,828 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 434 transitions. Word has length 72 [2024-11-09 06:01:09,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:09,829 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 434 transitions. [2024-11-09 06:01:09,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 11 states have internal predecessors, (33), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-09 06:01:09,830 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 434 transitions. [2024-11-09 06:01:09,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 06:01:09,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:09,831 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:01:09,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 06:01:10,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:01:10,036 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:01:10,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:10,037 INFO L85 PathProgramCache]: Analyzing trace with hash 78969820, now seen corresponding path program 1 times [2024-11-09 06:01:10,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:01:10,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137985286] [2024-11-09 06:01:10,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:10,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:01:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:01:10,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2037832187] [2024-11-09 06:01:10,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:10,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:01:10,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:01:10,076 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:01:10,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 06:01:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:10,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 06:01:10,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:11,511 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 06:01:11,512 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:01:14,772 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-09 06:01:14,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:01:14,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137985286] [2024-11-09 06:01:14,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:01:14,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037832187] [2024-11-09 06:01:14,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037832187] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:01:14,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [87334220] [2024-11-09 06:01:14,776 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:01:14,777 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:01:14,777 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:01:14,778 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:01:14,778 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:01:17,518 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:01:17,520 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:01:17,522 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:01:43,744 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13699#(exists ((|v_ULTIMATE.start_main_~q~0#1_57| Int) (|v_ULTIMATE.start_main_~B~0#1_46| Int) (|v_ULTIMATE.start_main_~r~0#1_51| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~q~0#1_57| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_57| 9223372036854775808)) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~r~0#1_51| (* |v_ULTIMATE.start_main_~q~0#1_57| (mod |v_ULTIMATE.start_main_~B~0#1_46| 4294967296)))) (<= (* |v_ULTIMATE.start_main_~q~0#1_57| (mod |v_ULTIMATE.start_main_~B~0#1_46| 4294967296)) 9223372036854775807)))' at error location [2024-11-09 06:01:43,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:01:43,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:01:43,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2024-11-09 06:01:43,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907098796] [2024-11-09 06:01:43,745 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:01:43,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 06:01:43,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:01:43,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 06:01:43,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=2405, Unknown=0, NotChecked=0, Total=2756 [2024-11-09 06:01:43,748 INFO L87 Difference]: Start difference. First operand 327 states and 434 transitions. Second operand has 22 states, 20 states have (on average 3.8) internal successors, (76), 22 states have internal predecessors, (76), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-11-09 06:01:53,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:53,153 INFO L93 Difference]: Finished difference Result 475 states and 631 transitions. [2024-11-09 06:01:53,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 06:01:53,154 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.8) internal successors, (76), 22 states have internal predecessors, (76), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 70 [2024-11-09 06:01:53,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:53,157 INFO L225 Difference]: With dead ends: 475 [2024-11-09 06:01:53,158 INFO L226 Difference]: Without dead ends: 357 [2024-11-09 06:01:53,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2113 ImplicationChecksByTransitivity, 32.0s TimeCoverageRelationStatistics Valid=795, Invalid=5367, Unknown=0, NotChecked=0, Total=6162 [2024-11-09 06:01:53,163 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 350 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:53,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 282 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-09 06:01:53,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-09 06:01:53,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 320. [2024-11-09 06:01:53,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 260 states have (on average 1.2961538461538462) internal successors, (337), 275 states have internal predecessors, (337), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 06:01:53,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 421 transitions. [2024-11-09 06:01:53,262 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 421 transitions. Word has length 70 [2024-11-09 06:01:53,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:53,262 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 421 transitions. [2024-11-09 06:01:53,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.8) internal successors, (76), 22 states have internal predecessors, (76), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-11-09 06:01:53,263 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 421 transitions. [2024-11-09 06:01:53,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 06:01:53,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:53,265 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:01:53,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 06:01:53,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:01:53,470 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:01:53,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:53,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1718543877, now seen corresponding path program 1 times [2024-11-09 06:01:53,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:01:53,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850892683] [2024-11-09 06:01:53,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:53,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:01:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:01:53,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1509351893] [2024-11-09 06:01:53,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:53,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:01:53,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:01:53,535 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:01:53,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 06:01:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:53,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:01:53,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:54,423 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 06:01:54,423 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:01:55,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:01:55,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850892683] [2024-11-09 06:01:55,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:01:55,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509351893] [2024-11-09 06:01:55,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509351893] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:01:55,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [998695097] [2024-11-09 06:01:55,338 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-09 06:01:55,339 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:01:55,339 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:01:55,340 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:01:55,340 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:01:58,348 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:01:58,350 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:01:58,351 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:02:14,052 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15065#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_63| Int) (|v_ULTIMATE.start_main_~d~0#1_116| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_63| 9223372036854775808)) (<= |v_ULTIMATE.start_main_~q~0#1_63| 9223372036854775807) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_63| |v_ULTIMATE.start_main_~d~0#1_116|)) 0))))' at error location [2024-11-09 06:02:14,052 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:02:14,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:02:14,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 06:02:14,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285282650] [2024-11-09 06:02:14,053 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:02:14,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:02:14,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:02:14,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:02:14,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=1606, Unknown=3, NotChecked=0, Total=1892 [2024-11-09 06:02:14,055 INFO L87 Difference]: Start difference. First operand 320 states and 421 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-09 06:02:14,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:02:14,766 INFO L93 Difference]: Finished difference Result 325 states and 428 transitions. [2024-11-09 06:02:14,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:02:14,767 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 80 [2024-11-09 06:02:14,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:02:14,770 INFO L225 Difference]: With dead ends: 325 [2024-11-09 06:02:14,771 INFO L226 Difference]: Without dead ends: 324 [2024-11-09 06:02:14,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 757 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=310, Invalid=1849, Unknown=3, NotChecked=0, Total=2162 [2024-11-09 06:02:14,774 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 30 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:02:14,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 213 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:02:14,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-09 06:02:14,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 321. [2024-11-09 06:02:14,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 261 states have (on average 1.2950191570881227) internal successors, (338), 276 states have internal predecessors, (338), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 06:02:14,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 422 transitions. [2024-11-09 06:02:14,868 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 422 transitions. Word has length 80 [2024-11-09 06:02:14,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:02:14,869 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 422 transitions. [2024-11-09 06:02:14,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-09 06:02:14,870 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 422 transitions. [2024-11-09 06:02:14,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 06:02:14,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:02:14,872 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:02:14,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 06:02:15,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:02:15,073 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:02:15,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:02:15,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1735252512, now seen corresponding path program 1 times [2024-11-09 06:02:15,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:02:15,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514014903] [2024-11-09 06:02:15,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:15,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:02:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:02:15,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [395721008] [2024-11-09 06:02:15,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:15,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:02:15,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:02:15,125 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:02:15,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 06:02:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:15,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:02:15,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:16,208 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-09 06:02:16,208 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:02:17,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:02:17,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514014903] [2024-11-09 06:02:17,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:02:17,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395721008] [2024-11-09 06:02:17,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395721008] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:02:17,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [250174653] [2024-11-09 06:02:17,868 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2024-11-09 06:02:17,868 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:02:17,868 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:02:17,869 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:02:17,869 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:02:20,929 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:02:20,930 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:02:20,932 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:02:29,420 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16218#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_69| Int) (|v_ULTIMATE.start_main_~d~0#1_127| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_69| |v_ULTIMATE.start_main_~d~0#1_127|)) (<= |v_ULTIMATE.start_main_~q~0#1_69| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_69| 9223372036854775808)))))' at error location [2024-11-09 06:02:29,421 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:02:29,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:02:29,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 06:02:29,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889408133] [2024-11-09 06:02:29,421 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:02:29,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:02:29,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:02:29,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:02:29,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=2027, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 06:02:29,424 INFO L87 Difference]: Start difference. First operand 321 states and 422 transitions. Second operand has 12 states, 10 states have (on average 4.5) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-09 06:02:30,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:02:30,826 INFO L93 Difference]: Finished difference Result 528 states and 707 transitions. [2024-11-09 06:02:30,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:02:30,827 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.5) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 81 [2024-11-09 06:02:30,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:02:30,829 INFO L225 Difference]: With dead ends: 528 [2024-11-09 06:02:30,830 INFO L226 Difference]: Without dead ends: 354 [2024-11-09 06:02:30,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1204 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=427, Invalid=2879, Unknown=0, NotChecked=0, Total=3306 [2024-11-09 06:02:30,835 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 102 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:02:30,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 300 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:02:30,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-09 06:02:30,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 349. [2024-11-09 06:02:30,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 286 states have (on average 1.2937062937062938) internal successors, (370), 300 states have internal predecessors, (370), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 06:02:30,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 462 transitions. [2024-11-09 06:02:30,923 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 462 transitions. Word has length 81 [2024-11-09 06:02:30,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:02:30,924 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 462 transitions. [2024-11-09 06:02:30,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.5) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-09 06:02:30,925 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 462 transitions. [2024-11-09 06:02:30,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 06:02:30,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:02:30,926 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:02:30,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-09 06:02:31,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 06:02:31,127 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:02:31,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:02:31,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2041747101, now seen corresponding path program 1 times [2024-11-09 06:02:31,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:02:31,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584278743] [2024-11-09 06:02:31,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:31,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:02:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:31,368 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-09 06:02:31,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:02:31,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584278743] [2024-11-09 06:02:31,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584278743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:02:31,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:02:31,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:02:31,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384375265] [2024-11-09 06:02:31,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:02:31,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:02:31,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:02:31,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:02:31,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:02:31,372 INFO L87 Difference]: Start difference. First operand 349 states and 462 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 06:02:32,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:02:32,288 INFO L93 Difference]: Finished difference Result 349 states and 462 transitions. [2024-11-09 06:02:32,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:02:32,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 82 [2024-11-09 06:02:32,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:02:32,290 INFO L225 Difference]: With dead ends: 349 [2024-11-09 06:02:32,290 INFO L226 Difference]: Without dead ends: 348 [2024-11-09 06:02:32,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:02:32,291 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 45 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:02:32,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 123 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:02:32,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-09 06:02:32,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2024-11-09 06:02:32,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 286 states have (on average 1.2902097902097902) internal successors, (369), 299 states have internal predecessors, (369), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 06:02:32,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 461 transitions. [2024-11-09 06:02:32,361 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 461 transitions. Word has length 82 [2024-11-09 06:02:32,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:02:32,362 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 461 transitions. [2024-11-09 06:02:32,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 06:02:32,362 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 461 transitions. [2024-11-09 06:02:32,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 06:02:32,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:02:32,364 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:02:32,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 06:02:32,364 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:02:32,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:02:32,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1130349182, now seen corresponding path program 1 times [2024-11-09 06:02:32,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:02:32,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889120550] [2024-11-09 06:02:32,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:32,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:02:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:02:32,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703694685] [2024-11-09 06:02:32,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:32,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:02:32,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:02:32,397 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:02:32,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 06:02:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:32,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 06:02:32,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:33,545 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-09 06:02:33,545 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:02:36,491 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 06:02:36,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:02:36,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889120550] [2024-11-09 06:02:36,492 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:02:36,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703694685] [2024-11-09 06:02:36,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703694685] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:02:36,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2125586099] [2024-11-09 06:02:36,495 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2024-11-09 06:02:36,495 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:02:36,496 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:02:36,496 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:02:36,496 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:02:38,927 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:02:38,928 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:02:38,929 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:02:46,952 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18686#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~d~0#1_140| Int) (|v_ULTIMATE.start_main_~q~0#1_76| Int)) (and (<= (* |v_ULTIMATE.start_main_~q~0#1_76| |v_ULTIMATE.start_main_~d~0#1_140|) 9223372036854775807) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_76| |v_ULTIMATE.start_main_~d~0#1_140|))) (<= |v_ULTIMATE.start_main_~q~0#1_76| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_76| 9223372036854775808)))))' at error location [2024-11-09 06:02:46,952 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:02:46,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:02:46,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18 [2024-11-09 06:02:46,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907672529] [2024-11-09 06:02:46,953 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:02:46,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 06:02:46,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:02:46,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 06:02:46,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=2388, Unknown=0, NotChecked=0, Total=2756 [2024-11-09 06:02:46,956 INFO L87 Difference]: Start difference. First operand 348 states and 461 transitions. Second operand has 19 states, 17 states have (on average 5.294117647058823) internal successors, (90), 19 states have internal predecessors, (90), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-09 06:02:51,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:02:51,305 INFO L93 Difference]: Finished difference Result 386 states and 505 transitions. [2024-11-09 06:02:51,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 06:02:51,306 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.294117647058823) internal successors, (90), 19 states have internal predecessors, (90), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 83 [2024-11-09 06:02:51,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:02:51,308 INFO L225 Difference]: With dead ends: 386 [2024-11-09 06:02:51,308 INFO L226 Difference]: Without dead ends: 379 [2024-11-09 06:02:51,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1599 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=535, Invalid=3755, Unknown=0, NotChecked=0, Total=4290 [2024-11-09 06:02:51,310 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 128 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:02:51,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 285 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 06:02:51,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-09 06:02:51,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 345. [2024-11-09 06:02:51,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 283 states have (on average 1.2791519434628975) internal successors, (362), 296 states have internal predecessors, (362), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 06:02:51,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 454 transitions. [2024-11-09 06:02:51,406 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 454 transitions. Word has length 83 [2024-11-09 06:02:51,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:02:51,407 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 454 transitions. [2024-11-09 06:02:51,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.294117647058823) internal successors, (90), 19 states have internal predecessors, (90), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-09 06:02:51,407 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 454 transitions. [2024-11-09 06:02:51,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:02:51,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:02:51,408 INFO L215 NwaCegarLoop]: trace histogram [11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:02:51,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 06:02:51,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-09 06:02:51,609 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:02:51,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:02:51,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1122569555, now seen corresponding path program 2 times [2024-11-09 06:02:51,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:02:51,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186920816] [2024-11-09 06:02:51,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:51,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:02:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:02:51,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [695879593] [2024-11-09 06:02:51,650 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:02:51,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:02:51,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:02:51,653 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:02:51,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 06:02:51,716 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 06:02:51,716 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:02:51,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 06:02:51,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:55,375 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-09 06:02:55,375 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:02:58,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:02:58,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186920816] [2024-11-09 06:02:58,250 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:02:58,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695879593] [2024-11-09 06:02:58,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695879593] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:02:58,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1389131430] [2024-11-09 06:02:58,253 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:02:58,253 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:02:58,253 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:02:58,254 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:02:58,254 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:03:00,595 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:03:00,597 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:03:00,598 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:03:24,594 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19931#(exists ((|v_ULTIMATE.start_main_~q~0#1_82| Int) (|v_ULTIMATE.start_main_~B~0#1_49| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_82| 9223372036854775808)) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_82| (mod |v_ULTIMATE.start_main_~B~0#1_49| 4294967296))) 0) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~p~0#1_153| Int)) (and (<= (div |v_ULTIMATE.start_main_~p~0#1_153| 2) 9223372036854775807) (or (and (<= (+ |v_ULTIMATE.start_main_~p~0#1_153| 1) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_153| 2) 0)) (= |ULTIMATE.start_main_~p~0#1| (+ (div |v_ULTIMATE.start_main_~p~0#1_153| 2) 1))) (and (or (= (mod |v_ULTIMATE.start_main_~p~0#1_153| 2) 0) (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_153| 1))) (= |ULTIMATE.start_main_~p~0#1| (div |v_ULTIMATE.start_main_~p~0#1_153| 2)))) (or (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_153| 2))) (and (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_153| 2)) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_153| 2) 0))))))))' at error location [2024-11-09 06:03:24,594 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:03:24,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:03:24,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 06:03:24,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941123300] [2024-11-09 06:03:24,594 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:03:24,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:03:24,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:03:24,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:03:24,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=1592, Unknown=7, NotChecked=0, Total=1892 [2024-11-09 06:03:24,598 INFO L87 Difference]: Start difference. First operand 345 states and 454 transitions. Second operand has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 06:03:36,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:03:38,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:03:40,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:03:42,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:03:44,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:03:46,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:03:49,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:03:51,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:03:51,258 INFO L93 Difference]: Finished difference Result 409 states and 543 transitions. [2024-11-09 06:03:51,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:03:51,259 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 84 [2024-11-09 06:03:51,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:03:51,262 INFO L225 Difference]: With dead ends: 409 [2024-11-09 06:03:51,262 INFO L226 Difference]: Without dead ends: 408 [2024-11-09 06:03:51,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 984 ImplicationChecksByTransitivity, 37.9s TimeCoverageRelationStatistics Valid=375, Invalid=2163, Unknown=12, NotChecked=0, Total=2550 [2024-11-09 06:03:51,264 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 60 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 19 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:03:51,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 133 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 358 Invalid, 6 Unknown, 0 Unchecked, 16.2s Time] [2024-11-09 06:03:51,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-09 06:03:51,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 383. [2024-11-09 06:03:51,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 317 states have (on average 1.277602523659306) internal successors, (405), 330 states have internal predecessors, (405), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 06:03:51,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 505 transitions. [2024-11-09 06:03:51,368 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 505 transitions. Word has length 84 [2024-11-09 06:03:51,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:03:51,369 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 505 transitions. [2024-11-09 06:03:51,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 06:03:51,369 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 505 transitions. [2024-11-09 06:03:51,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 06:03:51,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:03:51,371 INFO L215 NwaCegarLoop]: trace histogram [11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:03:51,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 06:03:51,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-09 06:03:51,582 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:03:51,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:03:51,589 INFO L85 PathProgramCache]: Analyzing trace with hash 439917916, now seen corresponding path program 2 times [2024-11-09 06:03:51,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:03:51,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603961325] [2024-11-09 06:03:51,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:03:51,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:03:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:03:51,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1138365314] [2024-11-09 06:03:51,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:03:51,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:03:51,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:03:51,621 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:03:51,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 06:03:51,688 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 06:03:51,688 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:03:51,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:03:51,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:04:08,612 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-09 06:04:08,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:04:10,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:04:10,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603961325] [2024-11-09 06:04:10,105 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:04:10,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138365314] [2024-11-09 06:04:10,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138365314] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:04:10,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [633753600] [2024-11-09 06:04:10,107 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:04:10,107 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:04:10,108 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:04:10,108 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:04:10,108 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:04:12,420 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:04:12,421 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:04:12,422 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:04:30,070 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21238#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~B~0#1_52| Int) (|v_ULTIMATE.start_main_~q~0#1_88| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_88| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_88| (mod |v_ULTIMATE.start_main_~B~0#1_52| 4294967296))))))' at error location [2024-11-09 06:04:30,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:04:30,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:04:30,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-09 06:04:30,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790622243] [2024-11-09 06:04:30,071 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:04:30,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:04:30,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:04:30,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:04:30,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=2002, Unknown=2, NotChecked=0, Total=2352 [2024-11-09 06:04:30,073 INFO L87 Difference]: Start difference. First operand 383 states and 505 transitions. Second operand has 13 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 06:04:32,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:04:36,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:04:38,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:04:40,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:04:42,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:04:50,974 WARN L539 Checker$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 06:05:04,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:05:04,009 INFO L93 Difference]: Finished difference Result 409 states and 538 transitions. [2024-11-09 06:05:04,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 06:05:04,010 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 85 [2024-11-09 06:05:04,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:05:04,012 INFO L225 Difference]: With dead ends: 409 [2024-11-09 06:05:04,012 INFO L226 Difference]: Without dead ends: 408 [2024-11-09 06:05:04,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1514 ImplicationChecksByTransitivity, 43.3s TimeCoverageRelationStatistics Valid=620, Invalid=3537, Unknown=3, NotChecked=0, Total=4160 [2024-11-09 06:05:04,014 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 167 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 31 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:05:04,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 208 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 534 Invalid, 6 Unknown, 0 Unchecked, 15.4s Time] [2024-11-09 06:05:04,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-09 06:05:04,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 383. [2024-11-09 06:05:04,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 317 states have (on average 1.2618296529968454) internal successors, (400), 330 states have internal predecessors, (400), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 06:05:04,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 500 transitions. [2024-11-09 06:05:04,112 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 500 transitions. Word has length 85 [2024-11-09 06:05:04,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:05:04,113 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 500 transitions. [2024-11-09 06:05:04,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 06:05:04,113 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 500 transitions. [2024-11-09 06:05:04,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 06:05:04,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:05:04,115 INFO L215 NwaCegarLoop]: trace histogram [14, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:05:04,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-09 06:05:04,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 06:05:04,316 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:05:04,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:05:04,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1149523972, now seen corresponding path program 4 times [2024-11-09 06:05:04,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:05:04,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289971031] [2024-11-09 06:05:04,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:05:04,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:05:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:05:04,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1189418292] [2024-11-09 06:05:04,350 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 06:05:04,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:05:04,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:05:04,353 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:05:04,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 06:05:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:05:04,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:05:04,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:05:04,845 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 87 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-09 06:05:04,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:05:04,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:05:04,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289971031] [2024-11-09 06:05:04,990 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:05:04,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189418292] [2024-11-09 06:05:04,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189418292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:05:04,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1183515559] [2024-11-09 06:05:04,992 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 06:05:04,993 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:05:04,993 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:05:04,993 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:05:04,994 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:05:06,169 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 06:05:06,171 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:05:06,172 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:05:07,659 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22571#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~B~0#1_53| Int) (|v_ULTIMATE.start_main_~p~0#1_175| Int)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_53| 4294967296) |v_ULTIMATE.start_main_~p~0#1_175|))))' at error location [2024-11-09 06:05:07,660 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:05:07,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:05:07,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 06:05:07,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261330378] [2024-11-09 06:05:07,660 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:05:07,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:05:07,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:05:07,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:05:07,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2024-11-09 06:05:07,662 INFO L87 Difference]: Start difference. First operand 383 states and 500 transitions. Second operand has 9 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-09 06:05:08,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:05:08,196 INFO L93 Difference]: Finished difference Result 642 states and 873 transitions. [2024-11-09 06:05:08,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:05:08,197 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 89 [2024-11-09 06:05:08,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:05:08,200 INFO L225 Difference]: With dead ends: 642 [2024-11-09 06:05:08,200 INFO L226 Difference]: Without dead ends: 638 [2024-11-09 06:05:08,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2024-11-09 06:05:08,203 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 316 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:05:08,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 165 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:05:08,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-09 06:05:08,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 501. [2024-11-09 06:05:08,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 420 states have (on average 1.269047619047619) internal successors, (533), 433 states have internal predecessors, (533), 65 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-09 06:05:08,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 663 transitions. [2024-11-09 06:05:08,329 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 663 transitions. Word has length 89 [2024-11-09 06:05:08,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:05:08,329 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 663 transitions. [2024-11-09 06:05:08,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-09 06:05:08,330 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 663 transitions. [2024-11-09 06:05:08,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 06:05:08,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:05:08,331 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:05:08,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-09 06:05:08,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 06:05:08,532 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:05:08,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:05:08,532 INFO L85 PathProgramCache]: Analyzing trace with hash 344527559, now seen corresponding path program 1 times [2024-11-09 06:05:08,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:05:08,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72032717] [2024-11-09 06:05:08,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:05:08,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:05:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:05:08,877 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-09 06:05:08,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:05:08,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72032717] [2024-11-09 06:05:08,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72032717] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:05:08,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637776935] [2024-11-09 06:05:08,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:05:08,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:05:08,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:05:08,880 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:05:08,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 06:05:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:05:08,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:05:08,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:05:09,073 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 06:05:09,073 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:05:09,256 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 06:05:09,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637776935] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:05:09,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1248321835] [2024-11-09 06:05:09,257 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:05:09,257 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:05:09,257 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:05:09,258 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:05:09,258 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:05:11,518 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:05:11,519 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:05:11,521 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:06:01,870 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24481#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1_188| Int)) (and (or (and (<= (+ |v_ULTIMATE.start_main_~p~0#1_188| 1) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_188| 2) 0)) (= |ULTIMATE.start_main_~p~0#1| (+ (div |v_ULTIMATE.start_main_~p~0#1_188| 2) 1))) (and (or (= (mod |v_ULTIMATE.start_main_~p~0#1_188| 2) 0) (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_188| 1))) (= (div |v_ULTIMATE.start_main_~p~0#1_188| 2) |ULTIMATE.start_main_~p~0#1|))) (or (< (div |v_ULTIMATE.start_main_~p~0#1_188| 2) 9223372036854775807) (= (div |v_ULTIMATE.start_main_~p~0#1_188| 2) 9223372036854775807)) (or (and (not (= (mod |v_ULTIMATE.start_main_~p~0#1_188| 2) 0)) (= (+ (div |v_ULTIMATE.start_main_~p~0#1_188| 2) 9223372036854775809) 0)) (< 0 (+ (div |v_ULTIMATE.start_main_~p~0#1_188| 2) 9223372036854775809))))))' at error location [2024-11-09 06:06:01,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:06:01,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:06:01,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 12 [2024-11-09 06:06:01,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697925532] [2024-11-09 06:06:01,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:06:01,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:06:01,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:06:01,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:06:01,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1569, Unknown=24, NotChecked=0, Total=1806 [2024-11-09 06:06:01,873 INFO L87 Difference]: Start difference. First operand 501 states and 663 transitions. Second operand has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-09 06:06:03,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:06:03,458 INFO L93 Difference]: Finished difference Result 913 states and 1232 transitions. [2024-11-09 06:06:03,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:06:03,459 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 86 [2024-11-09 06:06:03,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:06:03,463 INFO L225 Difference]: With dead ends: 913 [2024-11-09 06:06:03,463 INFO L226 Difference]: Without dead ends: 778 [2024-11-09 06:06:03,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 50.7s TimeCoverageRelationStatistics Valid=286, Invalid=2552, Unknown=24, NotChecked=0, Total=2862 [2024-11-09 06:06:03,466 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 183 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:06:03,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 553 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 06:06:03,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2024-11-09 06:06:03,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 496. [2024-11-09 06:06:03,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 415 states have (on average 1.306024096385542) internal successors, (542), 428 states have internal predecessors, (542), 65 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-09 06:06:03,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 672 transitions. [2024-11-09 06:06:03,630 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 672 transitions. Word has length 86 [2024-11-09 06:06:03,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:06:03,631 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 672 transitions. [2024-11-09 06:06:03,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-09 06:06:03,632 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 672 transitions. [2024-11-09 06:06:03,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 06:06:03,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:06:03,633 INFO L215 NwaCegarLoop]: trace histogram [17, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:06:03,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-09 06:06:03,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 06:06:03,834 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:06:03,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:06:03,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1147290590, now seen corresponding path program 5 times [2024-11-09 06:06:03,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:06:03,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443055328] [2024-11-09 06:06:03,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:06:03,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:06:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:06:03,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [671938152] [2024-11-09 06:06:03,863 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:06:03,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:06:03,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:06:03,865 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:06:03,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 06:06:03,946 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 06:06:03,947 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:06:03,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:06:03,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:06:07,948 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 64 proven. 13 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-09 06:06:07,948 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:06:08,448 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 74 proven. 1 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-09 06:06:08,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:06:08,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443055328] [2024-11-09 06:06:08,448 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:06:08,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671938152] [2024-11-09 06:06:08,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671938152] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:06:08,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2095569098] [2024-11-09 06:06:08,450 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 06:06:08,450 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:06:08,451 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:06:08,451 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:06:08,451 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:06:09,589 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 06:06:09,590 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:06:09,591 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:06:11,744 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '26863#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~p~0#1_197| Int) (|v_ULTIMATE.start_main_~B~0#1_58| Int)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_58| 4294967296) |v_ULTIMATE.start_main_~p~0#1_197|))))' at error location [2024-11-09 06:06:11,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:06:11,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:06:11,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 14 [2024-11-09 06:06:11,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425213994] [2024-11-09 06:06:11,745 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:06:11,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 06:06:11,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:06:11,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 06:06:11,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=810, Unknown=2, NotChecked=0, Total=992 [2024-11-09 06:06:11,746 INFO L87 Difference]: Start difference. First operand 496 states and 672 transitions. Second operand has 15 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (18), 10 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-09 06:06:14,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:06:16,867 WARN L539 Checker$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 06:06:18,928 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 06:06:19,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:06:19,008 INFO L93 Difference]: Finished difference Result 497 states and 673 transitions. [2024-11-09 06:06:19,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:06:19,008 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (18), 10 states have call predecessors, (18), 6 states have call successors, (18) Word has length 106 [2024-11-09 06:06:19,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:06:19,010 INFO L225 Difference]: With dead ends: 497 [2024-11-09 06:06:19,011 INFO L226 Difference]: Without dead ends: 495 [2024-11-09 06:06:19,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=276, Invalid=1204, Unknown=2, NotChecked=0, Total=1482 [2024-11-09 06:06:19,012 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 233 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 66 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:06:19,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 111 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 276 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2024-11-09 06:06:19,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-09 06:06:19,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 494. [2024-11-09 06:06:19,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 415 states have (on average 1.2867469879518072) internal successors, (534), 426 states have internal predecessors, (534), 65 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-09 06:06:19,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 664 transitions. [2024-11-09 06:06:19,113 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 664 transitions. Word has length 106 [2024-11-09 06:06:19,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:06:19,114 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 664 transitions. [2024-11-09 06:06:19,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (18), 10 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-09 06:06:19,114 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 664 transitions. [2024-11-09 06:06:19,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 06:06:19,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:06:19,116 INFO L215 NwaCegarLoop]: trace histogram [14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:06:19,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-09 06:06:19,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:06:19,318 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:06:19,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:06:19,318 INFO L85 PathProgramCache]: Analyzing trace with hash -700017636, now seen corresponding path program 2 times [2024-11-09 06:06:19,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:06:19,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186809430] [2024-11-09 06:06:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:06:19,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:06:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:06:19,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1961359451] [2024-11-09 06:06:19,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:06:19,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:06:19,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:06:19,355 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:06:19,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 06:06:19,449 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 06:06:19,450 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:06:19,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 06:06:19,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:06:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 38 proven. 7 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-09 06:06:36,794 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:06:41,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:06:41,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186809430] [2024-11-09 06:06:41,028 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:06:41,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961359451] [2024-11-09 06:06:41,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961359451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:06:41,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [8878457] [2024-11-09 06:06:41,030 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:06:41,030 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:06:41,031 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:06:41,031 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:06:41,031 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:06:43,125 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:06:43,126 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:06:43,127 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:07:12,855 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28466#(exists ((|v_ULTIMATE.start_main_~B~0#1_61| Int) (|v_ULTIMATE.start_main_~r~0#1_88| Int) (|v_ULTIMATE.start_main_~q~0#1_99| Int)) (and (<= (* |v_ULTIMATE.start_main_~q~0#1_99| (mod |v_ULTIMATE.start_main_~B~0#1_61| 4294967296)) 9223372036854775807) (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_99| (mod |v_ULTIMATE.start_main_~B~0#1_61| 4294967296)) |v_ULTIMATE.start_main_~r~0#1_88|)) (<= |v_ULTIMATE.start_main_~q~0#1_99| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_99| 9223372036854775808))))' at error location [2024-11-09 06:07:12,855 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:07:12,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:07:12,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-09 06:07:12,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027111408] [2024-11-09 06:07:12,856 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:07:12,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:07:12,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:07:12,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:07:12,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=2062, Unknown=1, NotChecked=0, Total=2352 [2024-11-09 06:07:12,858 INFO L87 Difference]: Start difference. First operand 494 states and 664 transitions. Second operand has 13 states, 10 states have (on average 4.4) internal successors, (44), 13 states have internal predecessors, (44), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 06:07:15,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:07:19,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:07:21,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:07:23,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:07:25,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:07:29,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:07:31,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:07:35,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:35,874 INFO L93 Difference]: Finished difference Result 514 states and 683 transitions. [2024-11-09 06:07:35,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:07:35,875 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 4.4) internal successors, (44), 13 states have internal predecessors, (44), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 104 [2024-11-09 06:07:35,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:35,877 INFO L225 Difference]: With dead ends: 514 [2024-11-09 06:07:35,877 INFO L226 Difference]: Without dead ends: 513 [2024-11-09 06:07:35,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1114 ImplicationChecksByTransitivity, 46.1s TimeCoverageRelationStatistics Valid=361, Invalid=2718, Unknown=1, NotChecked=0, Total=3080 [2024-11-09 06:07:35,878 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 128 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 22 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:35,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 149 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 376 Invalid, 7 Unknown, 0 Unchecked, 16.3s Time] [2024-11-09 06:07:35,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-09 06:07:35,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 470. [2024-11-09 06:07:35,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 393 states have (on average 1.2951653944020356) internal successors, (509), 404 states have internal predecessors, (509), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-09 06:07:35,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 635 transitions. [2024-11-09 06:07:35,997 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 635 transitions. Word has length 104 [2024-11-09 06:07:35,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:35,997 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 635 transitions. [2024-11-09 06:07:35,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 4.4) internal successors, (44), 13 states have internal predecessors, (44), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 06:07:35,997 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 635 transitions. [2024-11-09 06:07:35,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 06:07:35,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:35,999 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:36,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-09 06:07:36,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-09 06:07:36,200 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:07:36,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:36,200 INFO L85 PathProgramCache]: Analyzing trace with hash -463922650, now seen corresponding path program 1 times [2024-11-09 06:07:36,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:36,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250511947] [2024-11-09 06:07:36,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:36,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:36,645 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 15 proven. 18 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-09 06:07:36,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:07:36,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250511947] [2024-11-09 06:07:36,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250511947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:07:36,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274645214] [2024-11-09 06:07:36,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:36,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:07:36,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:07:36,647 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:07:36,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 06:07:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:36,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:07:36,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:07:37,147 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 25 proven. 18 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 06:07:37,148 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:07:41,187 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 06:07:41,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274645214] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:07:41,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [164651321] [2024-11-09 06:07:41,189 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:07:41,189 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:07:41,189 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:07:41,190 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:07:41,190 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:07:43,862 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:07:43,863 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:07:43,864 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:07:51,329 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '30332#(and (exists ((|v_ULTIMATE.start_main_~p~0#1_225| Int) (|v_ULTIMATE.start_main_~p~0#1_226| Int)) (and (or (and (= (+ (div |v_ULTIMATE.start_main_~p~0#1_225| 2) 1) |v_ULTIMATE.start_main_~p~0#1_226|) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_225| 2) 0)) (<= (+ |v_ULTIMATE.start_main_~p~0#1_225| 1) 0)) (and (or (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_225| 1)) (= (mod |v_ULTIMATE.start_main_~p~0#1_225| 2) 0)) (= (div |v_ULTIMATE.start_main_~p~0#1_225| 2) |v_ULTIMATE.start_main_~p~0#1_226|))) (<= (div |v_ULTIMATE.start_main_~p~0#1_225| 2) 9223372036854775807) (or (and (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_225| 2)) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_225| 2) 0))) (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_225| 2)))))) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-09 06:07:51,329 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:07:51,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:07:51,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2024-11-09 06:07:51,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776768906] [2024-11-09 06:07:51,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:07:51,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 06:07:51,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:07:51,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 06:07:51,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=2295, Unknown=1, NotChecked=0, Total=2652 [2024-11-09 06:07:51,332 INFO L87 Difference]: Start difference. First operand 470 states and 635 transitions. Second operand has 21 states, 20 states have (on average 8.0) internal successors, (160), 21 states have internal predecessors, (160), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-09 06:07:51,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:51,909 INFO L93 Difference]: Finished difference Result 470 states and 635 transitions. [2024-11-09 06:07:51,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:07:51,910 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 8.0) internal successors, (160), 21 states have internal predecessors, (160), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 104 [2024-11-09 06:07:51,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:51,912 INFO L225 Difference]: With dead ends: 470 [2024-11-09 06:07:51,913 INFO L226 Difference]: Without dead ends: 468 [2024-11-09 06:07:51,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1396 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=429, Invalid=2650, Unknown=1, NotChecked=0, Total=3080 [2024-11-09 06:07:51,914 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 64 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:51,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 323 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:07:51,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-09 06:07:52,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2024-11-09 06:07:52,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 393 states have (on average 1.2340966921119594) internal successors, (485), 402 states have internal predecessors, (485), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-09 06:07:52,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 611 transitions. [2024-11-09 06:07:52,019 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 611 transitions. Word has length 104 [2024-11-09 06:07:52,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:52,019 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 611 transitions. [2024-11-09 06:07:52,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 8.0) internal successors, (160), 21 states have internal predecessors, (160), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-09 06:07:52,020 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 611 transitions. [2024-11-09 06:07:52,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 06:07:52,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:52,021 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:52,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-09 06:07:52,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-09 06:07:52,222 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:07:52,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:52,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1496700149, now seen corresponding path program 1 times [2024-11-09 06:07:52,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:52,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068200398] [2024-11-09 06:07:52,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:52,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:52,711 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 06:07:52,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:07:52,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068200398] [2024-11-09 06:07:52,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068200398] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:07:52,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310049698] [2024-11-09 06:07:52,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:52,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:07:52,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:07:52,715 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:07:52,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 06:07:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:52,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:07:52,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:07:53,250 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 06:07:53,251 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:07:55,473 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 06:07:55,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310049698] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:07:55,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [421075932] [2024-11-09 06:07:55,476 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:07:55,476 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:07:55,476 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:07:55,477 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:07:55,477 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:07:57,752 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:07:57,753 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:07:57,754 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:08:03,475 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32149#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1_242| Int) (|v_ULTIMATE.start_main_~p~0#1_243| Int)) (and (or (and (or (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_242| 1)) (= (mod |v_ULTIMATE.start_main_~p~0#1_242| 2) 0)) (= (div |v_ULTIMATE.start_main_~p~0#1_242| 2) |v_ULTIMATE.start_main_~p~0#1_243|)) (and (= |v_ULTIMATE.start_main_~p~0#1_243| (+ (div |v_ULTIMATE.start_main_~p~0#1_242| 2) 1)) (<= (+ |v_ULTIMATE.start_main_~p~0#1_242| 1) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_242| 2) 0)))) (or (and (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_242| 2)) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_242| 2) 0))) (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_242| 2)))) (or (= 9223372036854775807 (div |v_ULTIMATE.start_main_~p~0#1_242| 2)) (< (div |v_ULTIMATE.start_main_~p~0#1_242| 2) 9223372036854775807)))) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-09 06:08:03,475 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:08:03,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:08:03,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-09 06:08:03,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126576901] [2024-11-09 06:08:03,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:08:03,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 06:08:03,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:03,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 06:08:03,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=2392, Unknown=1, NotChecked=0, Total=2756 [2024-11-09 06:08:03,478 INFO L87 Difference]: Start difference. First operand 468 states and 611 transitions. Second operand has 22 states, 21 states have (on average 8.047619047619047) internal successors, (169), 22 states have internal predecessors, (169), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-11-09 06:08:06,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:06,178 INFO L93 Difference]: Finished difference Result 777 states and 1005 transitions. [2024-11-09 06:08:06,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 06:08:06,179 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 8.047619047619047) internal successors, (169), 22 states have internal predecessors, (169), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) Word has length 105 [2024-11-09 06:08:06,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:06,182 INFO L225 Difference]: With dead ends: 777 [2024-11-09 06:08:06,182 INFO L226 Difference]: Without dead ends: 776 [2024-11-09 06:08:06,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1774 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=597, Invalid=3434, Unknown=1, NotChecked=0, Total=4032 [2024-11-09 06:08:06,183 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 283 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:06,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 560 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 06:08:06,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2024-11-09 06:08:06,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 684. [2024-11-09 06:08:06,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 584 states have (on average 1.2123287671232876) internal successors, (708), 593 states have internal predecessors, (708), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-09 06:08:06,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 884 transitions. [2024-11-09 06:08:06,354 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 884 transitions. Word has length 105 [2024-11-09 06:08:06,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:06,354 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 884 transitions. [2024-11-09 06:08:06,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 8.047619047619047) internal successors, (169), 22 states have internal predecessors, (169), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-11-09 06:08:06,355 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 884 transitions. [2024-11-09 06:08:06,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 06:08:06,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:06,356 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:06,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-09 06:08:06,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:08:06,557 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:08:06,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:06,558 INFO L85 PathProgramCache]: Analyzing trace with hash -2138564542, now seen corresponding path program 3 times [2024-11-09 06:08:06,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:06,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379018255] [2024-11-09 06:08:06,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:06,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:08:06,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842363327] [2024-11-09 06:08:06,629 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:08:06,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:08:06,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:08:06,631 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:08:06,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 06:08:06,748 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:08:06,749 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:08:06,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 06:08:06,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:08:08,148 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-09 06:08:08,148 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:08:08,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:08,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379018255] [2024-11-09 06:08:08,637 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:08:08,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842363327] [2024-11-09 06:08:08,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842363327] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:08:08,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [962671045] [2024-11-09 06:08:08,639 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:08:08,639 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:08:08,639 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:08:08,640 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:08:08,640 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:08:11,091 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:08:11,092 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:08:11,094 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:08:18,911 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '34330#(and (exists ((|v_ULTIMATE.start_main_~B~0#1_62| Int) (|v_ULTIMATE.start_main_~q~0#1_120| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_120| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_120| (mod |v_ULTIMATE.start_main_~B~0#1_62| 4294967296))))) (<= 1 |#StackHeapBarrier|))' at error location [2024-11-09 06:08:18,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:08:18,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:08:18,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-09 06:08:18,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840492317] [2024-11-09 06:08:18,912 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:08:18,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 06:08:18,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:18,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 06:08:18,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=2036, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 06:08:18,913 INFO L87 Difference]: Start difference. First operand 684 states and 884 transitions. Second operand has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-09 06:08:20,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:20,236 INFO L93 Difference]: Finished difference Result 709 states and 915 transitions. [2024-11-09 06:08:20,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:08:20,236 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) Word has length 108 [2024-11-09 06:08:20,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:20,239 INFO L225 Difference]: With dead ends: 709 [2024-11-09 06:08:20,239 INFO L226 Difference]: Without dead ends: 708 [2024-11-09 06:08:20,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1160 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=423, Invalid=3237, Unknown=0, NotChecked=0, Total=3660 [2024-11-09 06:08:20,241 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 160 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:20,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 372 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:08:20,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-09 06:08:20,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 684. [2024-11-09 06:08:20,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 584 states have (on average 1.207191780821918) internal successors, (705), 593 states have internal predecessors, (705), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-09 06:08:20,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 881 transitions. [2024-11-09 06:08:20,396 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 881 transitions. Word has length 108 [2024-11-09 06:08:20,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:20,396 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 881 transitions. [2024-11-09 06:08:20,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-09 06:08:20,396 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 881 transitions. [2024-11-09 06:08:20,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-09 06:08:20,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:20,397 INFO L215 NwaCegarLoop]: trace histogram [18, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:20,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-09 06:08:20,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:08:20,598 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:08:20,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:20,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1532451857, now seen corresponding path program 1 times [2024-11-09 06:08:20,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:20,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238631970] [2024-11-09 06:08:20,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:20,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:20,784 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-09 06:08:20,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:20,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238631970] [2024-11-09 06:08:20,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238631970] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:08:20,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782557266] [2024-11-09 06:08:20,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:20,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:08:20,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:08:20,787 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:08:20,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 06:08:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:20,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:08:20,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:08:20,980 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-09 06:08:20,980 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:08:21,267 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-09 06:08:21,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782557266] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:08:21,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [469610222] [2024-11-09 06:08:21,269 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 06:08:21,269 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:08:21,269 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:08:21,270 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:08:21,270 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:08:22,662 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 06:08:22,663 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:08:22,665 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:08:24,869 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '36742#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~p~0#1_271| Int)) (and (= (* 2 (* |v_ULTIMATE.start_main_~p~0#1_271| (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) |ULTIMATE.start_main_~d~0#1|) (<= 4611686018427387904 |v_ULTIMATE.start_main_~p~0#1_271|) (<= (* |v_ULTIMATE.start_main_~p~0#1_271| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (<= (* |v_ULTIMATE.start_main_~p~0#1_271| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 4611686018427387903))))' at error location [2024-11-09 06:08:24,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:08:24,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:08:24,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-11-09 06:08:24,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429332769] [2024-11-09 06:08:24,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:08:24,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 06:08:24,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:24,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 06:08:24,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=803, Unknown=0, NotChecked=0, Total=992 [2024-11-09 06:08:24,871 INFO L87 Difference]: Start difference. First operand 684 states and 881 transitions. Second operand has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 14 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 14 states have call predecessors, (42), 14 states have call successors, (42) [2024-11-09 06:08:25,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:25,639 INFO L93 Difference]: Finished difference Result 1672 states and 2203 transitions. [2024-11-09 06:08:25,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:08:25,640 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 14 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 14 states have call predecessors, (42), 14 states have call successors, (42) Word has length 114 [2024-11-09 06:08:25,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:25,643 INFO L225 Difference]: With dead ends: 1672 [2024-11-09 06:08:25,643 INFO L226 Difference]: Without dead ends: 1670 [2024-11-09 06:08:25,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=189, Invalid=803, Unknown=0, NotChecked=0, Total=992 [2024-11-09 06:08:25,644 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 493 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:25,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 366 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:08:25,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2024-11-09 06:08:25,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 750. [2024-11-09 06:08:25,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 632 states have (on average 1.1993670886075949) internal successors, (758), 641 states have internal predecessors, (758), 106 states have call successors, (106), 2 states have call predecessors, (106), 2 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-09 06:08:25,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 970 transitions. [2024-11-09 06:08:25,803 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 970 transitions. Word has length 114 [2024-11-09 06:08:25,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:25,803 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 970 transitions. [2024-11-09 06:08:25,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 14 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 14 states have call predecessors, (42), 14 states have call successors, (42) [2024-11-09 06:08:25,803 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 970 transitions. [2024-11-09 06:08:25,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 06:08:25,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:25,804 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:08:25,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-09 06:08:26,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:08:26,005 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:08:26,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:26,005 INFO L85 PathProgramCache]: Analyzing trace with hash 2128812516, now seen corresponding path program 3 times [2024-11-09 06:08:26,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:26,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318756224] [2024-11-09 06:08:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:26,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:08:26,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1558694025] [2024-11-09 06:08:26,035 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:08:26,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:08:26,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:08:26,037 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:08:26,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d4cdb1-65a9-43a7-8f12-b3a26bde58c4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-09 06:08:26,118 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:08:26,118 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:08:26,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-09 06:08:26,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:08:27,655 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 06:08:27,655 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:09:27,472 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 06:09:27,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:09:27,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318756224] [2024-11-09 06:09:27,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:09:27,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558694025] [2024-11-09 06:09:27,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558694025] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:09:27,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1777080470] [2024-11-09 06:09:27,476 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:09:27,476 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:09:27,476 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:09:27,476 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:09:27,476 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:09:29,711 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:09:29,713 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:09:29,714 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:10:00,036 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40346#(exists ((|v_ULTIMATE.start_main_~r~0#1_114| Int) (|v_ULTIMATE.start_main_~B~0#1_63| Int) (|v_ULTIMATE.start_main_~q~0#1_130| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (* |v_ULTIMATE.start_main_~q~0#1_130| (mod |v_ULTIMATE.start_main_~B~0#1_63| 4294967296)) 9223372036854775807) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_130| (mod |v_ULTIMATE.start_main_~B~0#1_63| 4294967296)) |v_ULTIMATE.start_main_~r~0#1_114|)) (<= |v_ULTIMATE.start_main_~q~0#1_130| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_130| 9223372036854775808))))' at error location [2024-11-09 06:10:00,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:10:00,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:10:00,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 34 [2024-11-09 06:10:00,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600717577] [2024-11-09 06:10:00,037 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:10:00,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-09 06:10:00,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:10:00,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-09 06:10:00,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=507, Invalid=3781, Unknown=2, NotChecked=0, Total=4290 [2024-11-09 06:10:00,039 INFO L87 Difference]: Start difference. First operand 750 states and 970 transitions. Second operand has 35 states, 34 states have (on average 3.6470588235294117) internal successors, (124), 35 states have internal predecessors, (124), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 11 states have call predecessors, (29), 11 states have call successors, (29) [2024-11-09 06:10:19,584 WARN L286 SmtUtils]: Spent 15.65s on a formula simplification. DAG size of input: 226 DAG size of output: 122 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:10:33,379 WARN L286 SmtUtils]: Spent 9.44s on a formula simplification. DAG size of input: 163 DAG size of output: 107 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:10:38,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:10:53,130 WARN L286 SmtUtils]: Spent 10.73s on a formula simplification. DAG size of input: 185 DAG size of output: 112 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:11:04,515 WARN L286 SmtUtils]: Spent 8.71s on a formula simplification. DAG size of input: 188 DAG size of output: 119 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:11:14,326 WARN L286 SmtUtils]: Spent 7.24s on a formula simplification. DAG size of input: 149 DAG size of output: 122 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:12:07,242 WARN L286 SmtUtils]: Spent 44.90s on a formula simplification. DAG size of input: 235 DAG size of output: 117 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:12:12,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:12:19,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:12:20,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:12:23,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:12:35,816 WARN L286 SmtUtils]: Spent 10.19s on a formula simplification. DAG size of input: 165 DAG size of output: 121 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:13:02,350 WARN L286 SmtUtils]: Spent 9.01s on a formula simplification. DAG size of input: 131 DAG size of output: 102 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:13:21,128 WARN L286 SmtUtils]: Spent 13.88s on a formula simplification. DAG size of input: 201 DAG size of output: 89 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:13:43,315 WARN L286 SmtUtils]: Spent 12.91s on a formula simplification. DAG size of input: 238 DAG size of output: 92 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)