./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/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_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/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_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/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 5343b340ea8da46bc6acd6408dd3dbd3223330cf8901c5f3b9950638a460ce9a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:59:01,342 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:59:01,470 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 06:59:01,479 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:59:01,480 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:59:01,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:59:01,528 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:59:01,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:59:01,529 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:59:01,530 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:59:01,531 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:59:01,531 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:59:01,532 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:59:01,538 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:59:01,539 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:59:01,539 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:59:01,540 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:59:01,540 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:59:01,541 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:59:01,541 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:59:01,542 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:59:01,545 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:59:01,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:59:01,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:59:01,547 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:59:01,548 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:59:01,548 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:59:01,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:59:01,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:59:01,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:59:01,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:59:01,550 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:59:01,551 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:59:01,551 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:59:01,552 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:59:01,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:59:01,554 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:59:01,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:59:01,554 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:59:01,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:59:01,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:59:01,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:59:01,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:59:01,557 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:59:01,558 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:59:01,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:59:01,558 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:59:01,558 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:59:01,559 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:59:01,559 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_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5343b340ea8da46bc6acd6408dd3dbd3223330cf8901c5f3b9950638a460ce9a [2024-11-09 06:59:01,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:59:01,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:59:01,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:59:01,960 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:59:01,961 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:59:01,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound20.c Unable to find full path for "g++" [2024-11-09 06:59:04,472 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:59:04,780 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:59:04,781 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound20.c [2024-11-09 06:59:04,795 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/data/b6f73100e/a93175aa26f04bd18b0ab6f0fa052401/FLAGb22a678a1 [2024-11-09 06:59:04,821 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/data/b6f73100e/a93175aa26f04bd18b0ab6f0fa052401 [2024-11-09 06:59:04,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:59:04,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:59:04,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:59:04,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:59:04,841 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:59:04,842 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:59:04" (1/1) ... [2024-11-09 06:59:04,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a02b3fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:04, skipping insertion in model container [2024-11-09 06:59:04,844 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:59:04" (1/1) ... [2024-11-09 06:59:04,881 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:59:05,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:59:05,244 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:59:05,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:59:05,307 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:59:05,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:05 WrapperNode [2024-11-09 06:59:05,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:59:05,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:59:05,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:59:05,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:59:05,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:05" (1/1) ... [2024-11-09 06:59:05,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:05" (1/1) ... [2024-11-09 06:59:05,378 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 152 [2024-11-09 06:59:05,378 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:59:05,379 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:59:05,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:59:05,384 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:59:05,397 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:05" (1/1) ... [2024-11-09 06:59:05,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:05" (1/1) ... [2024-11-09 06:59:05,401 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:05" (1/1) ... [2024-11-09 06:59:05,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:05" (1/1) ... [2024-11-09 06:59:05,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:05" (1/1) ... [2024-11-09 06:59:05,410 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:05" (1/1) ... [2024-11-09 06:59:05,413 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:05" (1/1) ... [2024-11-09 06:59:05,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:05" (1/1) ... [2024-11-09 06:59:05,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:59:05,418 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:59:05,418 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:59:05,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:59:05,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:05" (1/1) ... [2024-11-09 06:59:05,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:59:05,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:05,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:59:05,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:59:05,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:59:05,524 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:59:05,524 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:59:05,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:59:05,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:59:05,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:59:05,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:59:05,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:59:05,630 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:59:05,634 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:59:06,544 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2024-11-09 06:59:06,544 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:59:06,738 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:59:06,738 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 06:59:06,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:59:06 BoogieIcfgContainer [2024-11-09 06:59:06,739 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:59:06,746 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:59:06,746 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:59:06,759 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:59:06,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:59:04" (1/3) ... [2024-11-09 06:59:06,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3513659b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:59:06, skipping insertion in model container [2024-11-09 06:59:06,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:05" (2/3) ... [2024-11-09 06:59:06,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3513659b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:59:06, skipping insertion in model container [2024-11-09 06:59:06,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:59:06" (3/3) ... [2024-11-09 06:59:06,769 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat1-ll_valuebound20.c [2024-11-09 06:59:06,793 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:59:06,795 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 92 error locations. [2024-11-09 06:59:06,895 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:59:06,906 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;@430f59ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:59:06,906 INFO L334 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2024-11-09 06:59:06,911 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 103 states have (on average 1.9514563106796117) internal successors, (201), 195 states have internal predecessors, (201), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:59:06,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 06:59:06,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:06,922 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:06,923 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 06:59:06,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:06,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1351694628, now seen corresponding path program 1 times [2024-11-09 06:59:06,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:06,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962677047] [2024-11-09 06:59:06,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:06,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:07,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:59:07,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:07,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962677047] [2024-11-09 06:59:07,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962677047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:07,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:07,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:07,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129723690] [2024-11-09 06:59:07,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:07,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:59:07,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:07,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:59:07,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:59:07,229 INFO L87 Difference]: Start difference. First operand has 206 states, 103 states have (on average 1.9514563106796117) internal successors, (201), 195 states have internal predecessors, (201), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:59:07,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:07,366 INFO L93 Difference]: Finished difference Result 368 states and 395 transitions. [2024-11-09 06:59:07,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:59:07,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 9 [2024-11-09 06:59:07,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:07,389 INFO L225 Difference]: With dead ends: 368 [2024-11-09 06:59:07,389 INFO L226 Difference]: Without dead ends: 189 [2024-11-09 06:59:07,394 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 06:59:07,402 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 13 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:07,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 344 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:59:07,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-09 06:59:07,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2024-11-09 06:59:07,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 102 states have (on average 1.7843137254901962) internal successors, (182), 179 states have internal predecessors, (182), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 06:59:07,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 196 transitions. [2024-11-09 06:59:07,487 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 196 transitions. Word has length 9 [2024-11-09 06:59:07,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:07,491 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 196 transitions. [2024-11-09 06:59:07,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:59:07,492 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 196 transitions. [2024-11-09 06:59:07,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 06:59:07,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:07,494 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:07,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:59:07,495 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 06:59:07,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:07,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1047139453, now seen corresponding path program 1 times [2024-11-09 06:59:07,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:07,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252956201] [2024-11-09 06:59:07,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:07,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:07,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:59:07,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:07,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252956201] [2024-11-09 06:59:07,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252956201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:07,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:07,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:07,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661313646] [2024-11-09 06:59:07,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:07,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:59:07,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:07,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:59:07,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:59:07,579 INFO L87 Difference]: Start difference. First operand 189 states and 196 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:59:07,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:07,677 INFO L93 Difference]: Finished difference Result 189 states and 196 transitions. [2024-11-09 06:59:07,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:59:07,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 10 [2024-11-09 06:59:07,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:07,685 INFO L225 Difference]: With dead ends: 189 [2024-11-09 06:59:07,687 INFO L226 Difference]: Without dead ends: 185 [2024-11-09 06:59:07,688 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 06:59:07,690 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 12 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:07,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 338 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:59:07,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-09 06:59:07,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-11-09 06:59:07,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 102 states have (on average 1.7450980392156863) internal successors, (178), 175 states have internal predecessors, (178), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 06:59:07,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 192 transitions. [2024-11-09 06:59:07,712 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 192 transitions. Word has length 10 [2024-11-09 06:59:07,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:07,712 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 192 transitions. [2024-11-09 06:59:07,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:59:07,713 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 192 transitions. [2024-11-09 06:59:07,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 06:59:07,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:07,714 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:07,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:59:07,715 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 06:59:07,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:07,720 INFO L85 PathProgramCache]: Analyzing trace with hash -437142457, now seen corresponding path program 1 times [2024-11-09 06:59:07,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:07,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512550210] [2024-11-09 06:59:07,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:07,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:59:07,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2064944254] [2024-11-09 06:59:07,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:07,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:07,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:07,803 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:59:07,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:59:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:07,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:59:07,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:07,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:59:07,979 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:59:07,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:07,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512550210] [2024-11-09 06:59:07,980 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:59:07,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064944254] [2024-11-09 06:59:07,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064944254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:07,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:07,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:59:07,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182564087] [2024-11-09 06:59:07,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:07,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:59:07,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:07,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:59:07,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:59:07,983 INFO L87 Difference]: Start difference. First operand 185 states and 192 transitions. Second operand has 4 states, 2 states have (on average 5.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:59:08,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:08,118 INFO L93 Difference]: Finished difference Result 185 states and 192 transitions. [2024-11-09 06:59:08,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:59:08,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 2 states have (on average 5.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-11-09 06:59:08,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:08,121 INFO L225 Difference]: With dead ends: 185 [2024-11-09 06:59:08,121 INFO L226 Difference]: Without dead ends: 183 [2024-11-09 06:59:08,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:59:08,123 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 8 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:08,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 496 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:59:08,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-09 06:59:08,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-09 06:59:08,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 102 states have (on average 1.7254901960784315) internal successors, (176), 173 states have internal predecessors, (176), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 06:59:08,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 190 transitions. [2024-11-09 06:59:08,141 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 190 transitions. Word has length 14 [2024-11-09 06:59:08,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:08,142 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 190 transitions. [2024-11-09 06:59:08,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 2 states have (on average 5.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:59:08,142 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 190 transitions. [2024-11-09 06:59:08,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 06:59:08,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:08,143 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:08,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:59:08,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:08,345 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 06:59:08,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:08,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1522739954, now seen corresponding path program 1 times [2024-11-09 06:59:08,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:08,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665674457] [2024-11-09 06:59:08,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:08,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:59:08,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [377694027] [2024-11-09 06:59:08,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:08,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:08,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:08,400 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:59:08,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:59:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:08,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 06:59:08,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:08,526 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 06:59:08,527 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:59:08,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:08,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665674457] [2024-11-09 06:59:08,527 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:59:08,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377694027] [2024-11-09 06:59:08,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377694027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:08,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:08,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:08,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313821110] [2024-11-09 06:59:08,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:08,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:59:08,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:08,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:59:08,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:59:08,530 INFO L87 Difference]: Start difference. First operand 183 states and 190 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:59:08,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:08,613 INFO L93 Difference]: Finished difference Result 183 states and 190 transitions. [2024-11-09 06:59:08,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:59:08,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 27 [2024-11-09 06:59:08,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:08,616 INFO L225 Difference]: With dead ends: 183 [2024-11-09 06:59:08,616 INFO L226 Difference]: Without dead ends: 181 [2024-11-09 06:59:08,616 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 06:59:08,618 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 144 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:08,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 162 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:59:08,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-09 06:59:08,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-09 06:59:08,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 102 states have (on average 1.7058823529411764) internal successors, (174), 171 states have internal predecessors, (174), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 06:59:08,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 188 transitions. [2024-11-09 06:59:08,633 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 188 transitions. Word has length 27 [2024-11-09 06:59:08,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:08,633 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 188 transitions. [2024-11-09 06:59:08,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:59:08,634 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 188 transitions. [2024-11-09 06:59:08,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 06:59:08,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:08,635 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:08,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:59:08,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:08,836 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 06:59:08,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:08,837 INFO L85 PathProgramCache]: Analyzing trace with hash 39701747, now seen corresponding path program 1 times [2024-11-09 06:59:08,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:08,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946156004] [2024-11-09 06:59:08,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:08,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:09,241 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 06:59:09,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:09,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946156004] [2024-11-09 06:59:09,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946156004] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:59:09,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562199099] [2024-11-09 06:59:09,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:09,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:09,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:09,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:59:09,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:59:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:09,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:59:09,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:09,520 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 06:59:09,521 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:09,837 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 06:59:09,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562199099] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:59:09,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1510281675] [2024-11-09 06:59:09,868 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-09 06:59:09,869 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:59:09,874 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:59:09,881 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:59:09,882 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:59:10,993 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:59:10,996 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:59:12,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1510281675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:12,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:59:12,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 4, 4] total 17 [2024-11-09 06:59:12,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168167775] [2024-11-09 06:59:12,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:12,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:59:12,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:12,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:59:12,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:59:12,410 INFO L87 Difference]: Start difference. First operand 181 states and 188 transitions. Second operand has 11 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:59:12,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:12,853 INFO L93 Difference]: Finished difference Result 181 states and 188 transitions. [2024-11-09 06:59:12,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:59:12,854 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 28 [2024-11-09 06:59:12,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:12,856 INFO L225 Difference]: With dead ends: 181 [2024-11-09 06:59:12,856 INFO L226 Difference]: Without dead ends: 179 [2024-11-09 06:59:12,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 64 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:59:12,858 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 156 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:12,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 521 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:59:12,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-09 06:59:12,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-09 06:59:12,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 102 states have (on average 1.6862745098039216) internal successors, (172), 169 states have internal predecessors, (172), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 06:59:12,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 186 transitions. [2024-11-09 06:59:12,878 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 186 transitions. Word has length 28 [2024-11-09 06:59:12,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:12,879 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 186 transitions. [2024-11-09 06:59:12,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:59:12,879 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 186 transitions. [2024-11-09 06:59:12,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 06:59:12,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:12,881 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:12,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 06:59:13,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:13,086 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 06:59:13,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:13,086 INFO L85 PathProgramCache]: Analyzing trace with hash -501324459, now seen corresponding path program 1 times [2024-11-09 06:59:13,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:13,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927250994] [2024-11-09 06:59:13,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:13,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:13,167 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 06:59:13,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:13,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927250994] [2024-11-09 06:59:13,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927250994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:13,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:13,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:13,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364308011] [2024-11-09 06:59:13,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:13,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:59:13,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:13,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:59:13,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:59:13,171 INFO L87 Difference]: Start difference. First operand 179 states and 186 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:59:13,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:13,289 INFO L93 Difference]: Finished difference Result 185 states and 192 transitions. [2024-11-09 06:59:13,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:59:13,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2024-11-09 06:59:13,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:13,292 INFO L225 Difference]: With dead ends: 185 [2024-11-09 06:59:13,292 INFO L226 Difference]: Without dead ends: 182 [2024-11-09 06:59:13,292 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 06:59:13,293 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 99 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:13,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 206 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:59:13,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-09 06:59:13,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-11-09 06:59:13,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 106 states have (on average 1.650943396226415) internal successors, (175), 172 states have internal predecessors, (175), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 06:59:13,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 189 transitions. [2024-11-09 06:59:13,312 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 189 transitions. Word has length 30 [2024-11-09 06:59:13,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:13,313 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 189 transitions. [2024-11-09 06:59:13,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:59:13,313 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 189 transitions. [2024-11-09 06:59:13,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 06:59:13,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:13,315 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:13,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:59:13,315 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 06:59:13,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:13,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1638811032, now seen corresponding path program 1 times [2024-11-09 06:59:13,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:13,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926485642] [2024-11-09 06:59:13,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:13,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:13,399 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 06:59:13,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:13,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926485642] [2024-11-09 06:59:13,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926485642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:13,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:13,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:59:13,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317890370] [2024-11-09 06:59:13,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:13,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:59:13,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:13,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:59:13,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:59:13,402 INFO L87 Difference]: Start difference. First operand 182 states and 189 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:59:13,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:13,621 INFO L93 Difference]: Finished difference Result 186 states and 193 transitions. [2024-11-09 06:59:13,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:59:13,622 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2024-11-09 06:59:13,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:13,625 INFO L225 Difference]: With dead ends: 186 [2024-11-09 06:59:13,626 INFO L226 Difference]: Without dead ends: 183 [2024-11-09 06:59:13,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:59:13,627 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 109 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:13,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 313 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:59:13,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-09 06:59:13,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-09 06:59:13,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 108 states have (on average 1.6296296296296295) internal successors, (176), 173 states have internal predecessors, (176), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 06:59:13,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 190 transitions. [2024-11-09 06:59:13,647 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 190 transitions. Word has length 31 [2024-11-09 06:59:13,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:13,648 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 190 transitions. [2024-11-09 06:59:13,648 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:59:13,650 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 190 transitions. [2024-11-09 06:59:13,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 06:59:13,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:13,651 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:13,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:59:13,651 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 06:59:13,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:13,652 INFO L85 PathProgramCache]: Analyzing trace with hash -736465481, now seen corresponding path program 1 times [2024-11-09 06:59:13,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:13,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550397521] [2024-11-09 06:59:13,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:13,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:13,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:59:13,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [187309132] [2024-11-09 06:59:13,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:13,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:13,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:13,697 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:59:13,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:59:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:13,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 06:59:13,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:13,803 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 06:59:13,803 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:59:13,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:13,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550397521] [2024-11-09 06:59:13,804 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:59:13,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187309132] [2024-11-09 06:59:13,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187309132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:13,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:13,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:13,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268627725] [2024-11-09 06:59:13,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:13,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:59:13,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:13,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:59:13,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:59:13,810 INFO L87 Difference]: Start difference. First operand 183 states and 190 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:59:13,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:13,993 INFO L93 Difference]: Finished difference Result 289 states and 309 transitions. [2024-11-09 06:59:13,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:59:13,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2024-11-09 06:59:13,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:13,995 INFO L225 Difference]: With dead ends: 289 [2024-11-09 06:59:13,996 INFO L226 Difference]: Without dead ends: 286 [2024-11-09 06:59:13,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 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 06:59:13,997 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 97 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:13,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 293 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:59:13,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-09 06:59:14,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 246. [2024-11-09 06:59:14,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 168 states have (on average 1.6547619047619047) internal successors, (278), 233 states have internal predecessors, (278), 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 06:59:14,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 298 transitions. [2024-11-09 06:59:14,025 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 298 transitions. Word has length 32 [2024-11-09 06:59:14,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:14,026 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 298 transitions. [2024-11-09 06:59:14,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:59:14,026 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 298 transitions. [2024-11-09 06:59:14,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 06:59:14,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:14,027 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:14,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 06:59:14,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 06:59:14,228 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 06:59:14,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:14,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1355593350, now seen corresponding path program 1 times [2024-11-09 06:59:14,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:14,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480278486] [2024-11-09 06:59:14,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:14,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:14,513 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 06:59:14,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:14,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480278486] [2024-11-09 06:59:14,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480278486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:59:14,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285786566] [2024-11-09 06:59:14,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:14,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:14,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:14,516 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:59:14,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:59:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:14,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:59:14,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:14,878 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 06:59:14,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:15,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285786566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:59:15,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1757907594] [2024-11-09 06:59:15,205 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2024-11-09 06:59:15,205 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:59:15,206 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:59:15,206 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:59:15,206 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:59:15,866 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:59:15,867 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:59:17,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1757907594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:17,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:59:17,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6, 6] total 20 [2024-11-09 06:59:17,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658886117] [2024-11-09 06:59:17,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:17,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:59:17,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:17,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:59:17,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=439, Unknown=0, NotChecked=0, Total=600 [2024-11-09 06:59:17,685 INFO L87 Difference]: Start difference. First operand 246 states and 298 transitions. Second operand has 12 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:59:19,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:19,450 INFO L93 Difference]: Finished difference Result 293 states and 306 transitions. [2024-11-09 06:59:19,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:59:19,450 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 33 [2024-11-09 06:59:19,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:19,452 INFO L225 Difference]: With dead ends: 293 [2024-11-09 06:59:19,453 INFO L226 Difference]: Without dead ends: 250 [2024-11-09 06:59:19,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 70 SyntacticMatches, 9 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=161, Invalid=439, Unknown=0, NotChecked=0, Total=600 [2024-11-09 06:59:19,454 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 276 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:19,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 317 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 06:59:19,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-09 06:59:19,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2024-11-09 06:59:19,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 172 states have (on average 1.4127906976744187) internal successors, (243), 237 states have internal predecessors, (243), 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 06:59:19,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 263 transitions. [2024-11-09 06:59:19,478 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 263 transitions. Word has length 33 [2024-11-09 06:59:19,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:19,478 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 263 transitions. [2024-11-09 06:59:19,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:59:19,478 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 263 transitions. [2024-11-09 06:59:19,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 06:59:19,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:19,480 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:59:19,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 06:59:19,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:19,685 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 06:59:19,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:19,685 INFO L85 PathProgramCache]: Analyzing trace with hash -710230115, now seen corresponding path program 1 times [2024-11-09 06:59:19,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:19,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790887046] [2024-11-09 06:59:19,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:19,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:19,747 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 06:59:19,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:19,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790887046] [2024-11-09 06:59:19,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790887046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:19,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:19,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:19,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464942182] [2024-11-09 06:59:19,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:19,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:59:19,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:19,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:59:19,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:59:19,749 INFO L87 Difference]: Start difference. First operand 250 states and 263 transitions. Second operand has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 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 06:59:20,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:20,033 INFO L93 Difference]: Finished difference Result 264 states and 277 transitions. [2024-11-09 06:59:20,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:59:20,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 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 55 [2024-11-09 06:59:20,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:20,035 INFO L225 Difference]: With dead ends: 264 [2024-11-09 06:59:20,036 INFO L226 Difference]: Without dead ends: 246 [2024-11-09 06:59:20,036 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 06:59:20,037 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 92 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:20,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 145 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:59:20,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-09 06:59:20,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 237. [2024-11-09 06:59:20,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 176 states have (on average 1.3181818181818181) internal successors, (232), 224 states have internal predecessors, (232), 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 06:59:20,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 252 transitions. [2024-11-09 06:59:20,060 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 252 transitions. Word has length 55 [2024-11-09 06:59:20,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:20,061 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 252 transitions. [2024-11-09 06:59:20,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 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 06:59:20,061 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 252 transitions. [2024-11-09 06:59:20,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 06:59:20,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:20,063 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:59:20,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:59:20,063 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 06:59:20,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:20,064 INFO L85 PathProgramCache]: Analyzing trace with hash 368667519, now seen corresponding path program 1 times [2024-11-09 06:59:20,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:20,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473150522] [2024-11-09 06:59:20,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:20,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:20,122 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 06:59:20,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:20,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473150522] [2024-11-09 06:59:20,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473150522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:20,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:20,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:20,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959029648] [2024-11-09 06:59:20,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:20,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:59:20,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:20,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:59:20,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:59:20,124 INFO L87 Difference]: Start difference. First operand 237 states and 252 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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 06:59:20,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:20,350 INFO L93 Difference]: Finished difference Result 246 states and 261 transitions. [2024-11-09 06:59:20,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:59:20,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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 57 [2024-11-09 06:59:20,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:20,352 INFO L225 Difference]: With dead ends: 246 [2024-11-09 06:59:20,353 INFO L226 Difference]: Without dead ends: 224 [2024-11-09 06:59:20,353 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 06:59:20,354 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 83 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:20,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 120 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:59:20,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-09 06:59:20,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2024-11-09 06:59:20,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 182 states have (on average 1.2032967032967032) internal successors, (219), 209 states have internal predecessors, (219), 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 06:59:20,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 239 transitions. [2024-11-09 06:59:20,378 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 239 transitions. Word has length 57 [2024-11-09 06:59:20,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:20,378 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 239 transitions. [2024-11-09 06:59:20,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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 06:59:20,378 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 239 transitions. [2024-11-09 06:59:20,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 06:59:20,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:20,380 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:59:20,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:59:20,380 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr87ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 06:59:20,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:20,381 INFO L85 PathProgramCache]: Analyzing trace with hash 779144997, now seen corresponding path program 1 times [2024-11-09 06:59:20,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:20,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543966613] [2024-11-09 06:59:20,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:20,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:20,460 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 06:59:20,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:20,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543966613] [2024-11-09 06:59:20,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543966613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:20,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:20,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:20,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145257187] [2024-11-09 06:59:20,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:20,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:59:20,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:20,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:59:20,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:59:20,462 INFO L87 Difference]: Start difference. First operand 222 states and 239 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 06:59:20,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:20,801 INFO L93 Difference]: Finished difference Result 257 states and 270 transitions. [2024-11-09 06:59:20,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:59:20,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 63 [2024-11-09 06:59:20,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:20,804 INFO L225 Difference]: With dead ends: 257 [2024-11-09 06:59:20,805 INFO L226 Difference]: Without dead ends: 253 [2024-11-09 06:59:20,805 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 06:59:20,806 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 73 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:20,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 131 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:59:20,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-09 06:59:20,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 234. [2024-11-09 06:59:20,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 196 states have (on average 1.1785714285714286) internal successors, (231), 221 states have internal predecessors, (231), 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 06:59:20,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 251 transitions. [2024-11-09 06:59:20,833 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 251 transitions. Word has length 63 [2024-11-09 06:59:20,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:20,834 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 251 transitions. [2024-11-09 06:59:20,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 06:59:20,834 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 251 transitions. [2024-11-09 06:59:20,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 06:59:20,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:20,836 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:59:20,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:59:20,836 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr90ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 06:59:20,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:20,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1505601254, now seen corresponding path program 1 times [2024-11-09 06:59:20,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:20,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196219814] [2024-11-09 06:59:20,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:20,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:20,903 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 06:59:20,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:20,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196219814] [2024-11-09 06:59:20,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196219814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:20,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:20,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:20,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091436998] [2024-11-09 06:59:20,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:20,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:59:20,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:20,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:59:20,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:59:20,907 INFO L87 Difference]: Start difference. First operand 234 states and 251 transitions. Second operand has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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 06:59:21,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:21,257 INFO L93 Difference]: Finished difference Result 246 states and 259 transitions. [2024-11-09 06:59:21,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:59:21,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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 66 [2024-11-09 06:59:21,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:21,259 INFO L225 Difference]: With dead ends: 246 [2024-11-09 06:59:21,259 INFO L226 Difference]: Without dead ends: 242 [2024-11-09 06:59:21,260 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 06:59:21,261 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 77 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:21,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 109 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:59:21,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-09 06:59:21,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 238. [2024-11-09 06:59:21,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 202 states have (on average 1.1633663366336633) internal successors, (235), 225 states have internal predecessors, (235), 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 06:59:21,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 255 transitions. [2024-11-09 06:59:21,288 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 255 transitions. Word has length 66 [2024-11-09 06:59:21,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:21,289 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 255 transitions. [2024-11-09 06:59:21,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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 06:59:21,289 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 255 transitions. [2024-11-09 06:59:21,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 06:59:21,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:21,290 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:59:21,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:59:21,290 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr91ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 06:59:21,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:21,291 INFO L85 PathProgramCache]: Analyzing trace with hash -571001111, now seen corresponding path program 1 times [2024-11-09 06:59:21,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:21,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000182199] [2024-11-09 06:59:21,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:21,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:21,370 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 06:59:21,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:21,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000182199] [2024-11-09 06:59:21,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000182199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:21,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:21,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:21,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880605979] [2024-11-09 06:59:21,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:21,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:59:21,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:21,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:59:21,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:59:21,373 INFO L87 Difference]: Start difference. First operand 238 states and 255 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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 06:59:21,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:21,729 INFO L93 Difference]: Finished difference Result 265 states and 278 transitions. [2024-11-09 06:59:21,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:59:21,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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 67 [2024-11-09 06:59:21,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:21,731 INFO L225 Difference]: With dead ends: 265 [2024-11-09 06:59:21,731 INFO L226 Difference]: Without dead ends: 245 [2024-11-09 06:59:21,731 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 06:59:21,732 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 73 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:21,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 139 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:59:21,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-09 06:59:21,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 222. [2024-11-09 06:59:21,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 188 states have (on average 1.1595744680851063) internal successors, (218), 209 states have internal predecessors, (218), 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 06:59:21,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 238 transitions. [2024-11-09 06:59:21,763 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 238 transitions. Word has length 67 [2024-11-09 06:59:21,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:21,763 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 238 transitions. [2024-11-09 06:59:21,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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 06:59:21,764 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 238 transitions. [2024-11-09 06:59:21,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 06:59:21,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:21,765 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:21,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:59:21,765 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 06:59:21,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:21,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1110555143, now seen corresponding path program 1 times [2024-11-09 06:59:21,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:21,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481432847] [2024-11-09 06:59:21,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:21,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:22,000 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 06:59:22,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:22,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481432847] [2024-11-09 06:59:22,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481432847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:59:22,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293428670] [2024-11-09 06:59:22,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:22,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:22,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:22,004 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:59:22,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 06:59:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:22,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:59:22,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:22,477 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 06:59:22,478 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:22,780 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 06:59:22,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293428670] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:59:22,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1265096571] [2024-11-09 06:59:22,785 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-09 06:59:22,785 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:59:22,786 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:59:22,786 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:59:22,786 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:59:30,581 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 194 for LOIs [2024-11-09 06:59:30,815 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:59:30,816 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:59:44,190 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8131#(and (<= 3 |ULTIMATE.start_main_~v~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~u~0#1| 4611686018427387904)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= |ULTIMATE.start_main_~u~0#1| 4611686018427387903))' at error location [2024-11-09 06:59:44,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:59:44,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:59:44,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2024-11-09 06:59:44,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032614915] [2024-11-09 06:59:44,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:59:44,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:59:44,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:44,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:59:44,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=1203, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 06:59:44,193 INFO L87 Difference]: Start difference. First operand 222 states and 238 transitions. Second operand has 14 states, 13 states have (on average 13.615384615384615) internal successors, (177), 14 states have internal predecessors, (177), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-09 06:59:45,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:45,279 INFO L93 Difference]: Finished difference Result 591 states and 655 transitions. [2024-11-09 06:59:45,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:59:45,280 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.615384615384615) internal successors, (177), 14 states have internal predecessors, (177), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 80 [2024-11-09 06:59:45,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:45,283 INFO L225 Difference]: With dead ends: 591 [2024-11-09 06:59:45,283 INFO L226 Difference]: Without dead ends: 391 [2024-11-09 06:59:45,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 172 SyntacticMatches, 35 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1585 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=473, Invalid=1977, Unknown=0, NotChecked=0, Total=2450 [2024-11-09 06:59:45,286 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 686 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:45,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 354 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:59:45,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-09 06:59:45,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 375. [2024-11-09 06:59:45,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 336 states have (on average 1.1428571428571428) internal successors, (384), 355 states have internal predecessors, (384), 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 06:59:45,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 418 transitions. [2024-11-09 06:59:45,335 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 418 transitions. Word has length 80 [2024-11-09 06:59:45,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:45,336 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 418 transitions. [2024-11-09 06:59:45,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.615384615384615) internal successors, (177), 14 states have internal predecessors, (177), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-09 06:59:45,336 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 418 transitions. [2024-11-09 06:59:45,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 06:59:45,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:45,339 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:45,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 06:59:45,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:45,540 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 06:59:45,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:45,541 INFO L85 PathProgramCache]: Analyzing trace with hash -67470938, now seen corresponding path program 1 times [2024-11-09 06:59:45,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:45,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233341771] [2024-11-09 06:59:45,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:45,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:45,722 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 06:59:45,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:45,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233341771] [2024-11-09 06:59:45,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233341771] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:59:45,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930943052] [2024-11-09 06:59:45,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:45,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:45,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:45,726 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:59:45,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 06:59:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:45,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:59:45,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:56,219 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~R~0#1_55| Int)) (let ((.cse0 (* |v_ULTIMATE.start_main_~R~0#1_55| |v_ULTIMATE.start_main_~R~0#1_55|))) (and (<= (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1) .cse0) (<= .cse0 9223372036854775807)))) is different from true [2024-11-09 06:59:56,260 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 3 not checked. [2024-11-09 06:59:56,261 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:56,454 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 06:59:56,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930943052] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:59:56,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [5592704] [2024-11-09 06:59:56,458 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-09 06:59:56,458 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:59:56,458 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:59:56,459 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:59:56,459 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:00:01,250 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 194 for LOIs [2024-11-09 07:00:01,414 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:00:01,415 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:00:56,771 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9727#(and (<= 3 |ULTIMATE.start_main_~v~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~u~0#1| 4611686018427387904)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= |ULTIMATE.start_main_~u~0#1| 4611686018427387903))' at error location [2024-11-09 07:00:56,772 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:00:56,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:00:56,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-09 07:00:56,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772679294] [2024-11-09 07:00:56,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:00:56,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 07:00:56,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:00:56,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 07:00:56,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=1147, Unknown=10, NotChecked=72, Total=1482 [2024-11-09 07:00:56,775 INFO L87 Difference]: Start difference. First operand 375 states and 418 transitions. Second operand has 14 states, 13 states have (on average 13.0) internal successors, (169), 14 states have internal predecessors, (169), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 07:00:58,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:00,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:02,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:06,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:19,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:21,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:23,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:25,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:27,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:29,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:31,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:37,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:39,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:42,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:44,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:46,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:48,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:50,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:52,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:54,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:56,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:58,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:02,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:04,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:06,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:08,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:10,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:12,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:14,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:16,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:18,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:20,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:22,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:24,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:26,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:28,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:30,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:32,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:34,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:36,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:38,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:40,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:42,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:44,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:46,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:48,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:50,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:52,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:54,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:56,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:02:58,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:00,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:02,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:04,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:06,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:08,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:10,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:12,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:14,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:16,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:18,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:20,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:22,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:24,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:26,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:28,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:30,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:32,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:34,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:36,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:38,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:40,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:42,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:44,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:46,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:48,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:50,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:52,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:54,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:56,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:03:58,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:04:00,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:04:02,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:04:04,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:04:04,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:04:04,977 INFO L93 Difference]: Finished difference Result 500 states and 553 transitions. [2024-11-09 07:04:04,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 07:04:04,978 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.0) internal successors, (169), 14 states have internal predecessors, (169), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 81 [2024-11-09 07:04:04,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:04:04,980 INFO L225 Difference]: With dead ends: 500 [2024-11-09 07:04:04,980 INFO L226 Difference]: Without dead ends: 496 [2024-11-09 07:04:04,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 174 SyntacticMatches, 35 SemanticMatches, 45 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1416 ImplicationChecksByTransitivity, 83.6s TimeCoverageRelationStatistics Valid=353, Invalid=1703, Unknown=18, NotChecked=88, Total=2162 [2024-11-09 07:04:04,983 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 357 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 31 mSolverCounterUnsat, 84 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 169.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 84 IncrementalHoareTripleChecker+Unknown, 300 IncrementalHoareTripleChecker+Unchecked, 169.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:04:04,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 349 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 661 Invalid, 84 Unknown, 300 Unchecked, 169.7s Time] [2024-11-09 07:04:04,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-09 07:04:05,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2024-11-09 07:04:05,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 440 states have (on average 1.1227272727272728) internal successors, (494), 458 states have internal predecessors, (494), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 07:04:05,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 538 transitions. [2024-11-09 07:04:05,044 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 538 transitions. Word has length 81 [2024-11-09 07:04:05,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:04:05,045 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 538 transitions. [2024-11-09 07:04:05,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.0) internal successors, (169), 14 states have internal predecessors, (169), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-09 07:04:05,045 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 538 transitions. [2024-11-09 07:04:05,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 07:04:05,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:04:05,047 INFO L215 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:05,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 07:04:05,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 07:04:05,248 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 07:04:05,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:05,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1688480372, now seen corresponding path program 1 times [2024-11-09 07:04:05,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:04:05,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344002490] [2024-11-09 07:04:05,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:05,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:04:05,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [228567565] [2024-11-09 07:04:05,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:05,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:04:05,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:04:05,278 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:04:05,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 07:04:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:05,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:04:05,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:05,564 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 07:04:05,564 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:04:05,858 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 07:04:05,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:04:05,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344002490] [2024-11-09 07:04:05,859 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:04:05,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228567565] [2024-11-09 07:04:05,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228567565] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:04:05,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [114342635] [2024-11-09 07:04:05,863 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-09 07:04:05,863 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:04:05,864 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:04:05,864 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:04:05,864 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:04:10,633 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 194 for LOIs [2024-11-09 07:04:10,766 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:04:10,768 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:04:20,931 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11365#(exists ((|v_ULTIMATE.start_main_~v~0#1_129| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~v~0#1_129| 9223372036854775807) (<= (* |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~u~0#1|) 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~v~0#1_129| |v_ULTIMATE.start_main_~v~0#1_129|)) (<= |ULTIMATE.start_main_~A~0#1| 20) (<= (+ |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) 2305843009213693951) (<= 0 (+ 2305843009213693952 |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= 0 |ULTIMATE.start_main_~A~0#1|) (<= 1 |v_ULTIMATE.start_main_~v~0#1_129|)))' at error location [2024-11-09 07:04:20,931 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:04:20,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:04:20,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-09 07:04:20,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046858082] [2024-11-09 07:04:20,932 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 07:04:20,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:04:20,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:04:20,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:04:20,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=755, Unknown=0, NotChecked=0, Total=930 [2024-11-09 07:04:20,934 INFO L87 Difference]: Start difference. First operand 483 states and 538 transitions. Second operand has 6 states, 5 states have (on average 25.8) internal successors, (129), 6 states have internal predecessors, (129), 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 07:04:21,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:04:21,326 INFO L93 Difference]: Finished difference Result 790 states and 872 transitions. [2024-11-09 07:04:21,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:04:21,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.8) internal successors, (129), 6 states have internal predecessors, (129), 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 87 [2024-11-09 07:04:21,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:04:21,330 INFO L225 Difference]: With dead ends: 790 [2024-11-09 07:04:21,330 INFO L226 Difference]: Without dead ends: 788 [2024-11-09 07:04:21,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 193 SyntacticMatches, 37 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=183, Invalid=809, Unknown=0, NotChecked=0, Total=992 [2024-11-09 07:04:21,331 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 267 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:04:21,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 360 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:04:21,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2024-11-09 07:04:21,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 769. [2024-11-09 07:04:21,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 714 states have (on average 1.119047619047619) internal successors, (799), 732 states have internal predecessors, (799), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-09 07:04:21,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 867 transitions. [2024-11-09 07:04:21,408 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 867 transitions. Word has length 87 [2024-11-09 07:04:21,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:04:21,409 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 867 transitions. [2024-11-09 07:04:21,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.8) internal successors, (129), 6 states have internal predecessors, (129), 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 07:04:21,409 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 867 transitions. [2024-11-09 07:04:21,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-09 07:04:21,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:04:21,411 INFO L215 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:21,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 07:04:21,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 07:04:21,612 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 07:04:21,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:21,613 INFO L85 PathProgramCache]: Analyzing trace with hash -519106190, now seen corresponding path program 1 times [2024-11-09 07:04:21,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:04:21,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774092196] [2024-11-09 07:04:21,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:21,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:21,885 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:04:21,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:04:21,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774092196] [2024-11-09 07:04:21,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774092196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:04:21,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855260648] [2024-11-09 07:04:21,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:21,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:04:21,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:04:21,888 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:04:21,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 07:04:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:21,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 07:04:21,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:22,627 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:04:22,628 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:04:25,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855260648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:04:25,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [752615951] [2024-11-09 07:04:25,303 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-09 07:04:25,303 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:04:25,304 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:04:25,304 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:04:25,304 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:04:29,444 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 198 for LOIs [2024-11-09 07:04:29,604 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:04:29,606 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:04:50,744 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13448#(exists ((|v_ULTIMATE.start_main_~v~0#1_135| Int) (|v_ULTIMATE.start_main_~u~0#1_113| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~A~0#1| 20) (<= (+ |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) 2305843009213693951) (<= 0 (+ 2305843009213693952 |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= (* |v_ULTIMATE.start_main_~u~0#1_113| |v_ULTIMATE.start_main_~u~0#1_113|) 9223372036854775807) (<= 0 |ULTIMATE.start_main_~A~0#1|) (<= (+ (* 2 |v_ULTIMATE.start_main_~u~0#1_113|) 9223372036854775808 (* |v_ULTIMATE.start_main_~v~0#1_135| |v_ULTIMATE.start_main_~v~0#1_135|)) (* |v_ULTIMATE.start_main_~u~0#1_113| |v_ULTIMATE.start_main_~u~0#1_113|)) (<= 1 |v_ULTIMATE.start_main_~v~0#1_135|)))' at error location [2024-11-09 07:04:50,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:04:50,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:04:50,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2024-11-09 07:04:50,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078034250] [2024-11-09 07:04:50,744 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 07:04:50,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 07:04:50,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:04:50,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 07:04:50,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=1262, Unknown=2, NotChecked=0, Total=1482 [2024-11-09 07:04:50,746 INFO L87 Difference]: Start difference. First operand 769 states and 867 transitions. Second operand has 11 states, 9 states have (on average 15.666666666666666) internal successors, (141), 11 states have internal predecessors, (141), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 07:04:55,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:04:57,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:04:57,317 INFO L93 Difference]: Finished difference Result 1433 states and 1631 transitions. [2024-11-09 07:04:57,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 07:04:57,318 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 15.666666666666666) internal successors, (141), 11 states have internal predecessors, (141), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 93 [2024-11-09 07:04:57,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:04:57,323 INFO L225 Difference]: With dead ends: 1433 [2024-11-09 07:04:57,323 INFO L226 Difference]: Without dead ends: 1429 [2024-11-09 07:04:57,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 132 SyntacticMatches, 42 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1322 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=301, Invalid=1859, Unknown=2, NotChecked=0, Total=2162 [2024-11-09 07:04:57,326 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 364 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:04:57,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 264 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-09 07:04:57,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2024-11-09 07:04:57,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 1295. [2024-11-09 07:04:57,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 1220 states have (on average 1.1131147540983606) internal successors, (1358), 1236 states have internal predecessors, (1358), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-09 07:04:57,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1470 transitions. [2024-11-09 07:04:57,503 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1470 transitions. Word has length 93 [2024-11-09 07:04:57,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:04:57,504 INFO L471 AbstractCegarLoop]: Abstraction has 1295 states and 1470 transitions. [2024-11-09 07:04:57,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 15.666666666666666) internal successors, (141), 11 states have internal predecessors, (141), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 07:04:57,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1470 transitions. [2024-11-09 07:04:57,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 07:04:57,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:04:57,506 INFO L215 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:57,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 07:04:57,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 07:04:57,707 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 07:04:57,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:57,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1656262800, now seen corresponding path program 1 times [2024-11-09 07:04:57,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:04:57,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991409815] [2024-11-09 07:04:57,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:57,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:57,832 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 07:04:57,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:04:57,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991409815] [2024-11-09 07:04:57,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991409815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:04:57,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:04:57,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:04:57,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863587977] [2024-11-09 07:04:57,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:04:57,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:04:57,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:04:57,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:04:57,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:04:57,835 INFO L87 Difference]: Start difference. First operand 1295 states and 1470 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 07:04:58,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:04:58,354 INFO L93 Difference]: Finished difference Result 1305 states and 1479 transitions. [2024-11-09 07:04:58,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:04:58,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 102 [2024-11-09 07:04:58,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:04:58,360 INFO L225 Difference]: With dead ends: 1305 [2024-11-09 07:04:58,360 INFO L226 Difference]: Without dead ends: 1304 [2024-11-09 07:04:58,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:04:58,362 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 80 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:04:58,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 148 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:04:58,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2024-11-09 07:04:58,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1294. [2024-11-09 07:04:58,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1220 states have (on average 1.1049180327868853) internal successors, (1348), 1235 states have internal predecessors, (1348), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-09 07:04:58,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1460 transitions. [2024-11-09 07:04:58,531 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1460 transitions. Word has length 102 [2024-11-09 07:04:58,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:04:58,531 INFO L471 AbstractCegarLoop]: Abstraction has 1294 states and 1460 transitions. [2024-11-09 07:04:58,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 07:04:58,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1460 transitions. [2024-11-09 07:04:58,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 07:04:58,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:04:58,533 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:58,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 07:04:58,533 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 07:04:58,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:58,534 INFO L85 PathProgramCache]: Analyzing trace with hash 287727863, now seen corresponding path program 1 times [2024-11-09 07:04:58,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:04:58,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490387807] [2024-11-09 07:04:58,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:58,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:58,677 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 07:04:58,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:04:58,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490387807] [2024-11-09 07:04:58,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490387807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:04:58,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539491425] [2024-11-09 07:04:58,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:58,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:04:58,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:04:58,680 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:04:58,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 07:04:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:58,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:04:58,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:59,395 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 07:04:59,396 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:04:59,854 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 07:04:59,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539491425] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:04:59,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [531422324] [2024-11-09 07:04:59,857 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2024-11-09 07:04:59,858 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:04:59,858 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:04:59,858 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:04:59,858 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:05:04,601 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 07:05:04,602 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:05:04,604 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:05:18,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [531422324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:18,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:05:18,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [4, 5, 5] total 28 [2024-11-09 07:05:18,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379409357] [2024-11-09 07:05:18,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:18,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 07:05:18,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:05:18,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 07:05:18,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=622, Unknown=0, NotChecked=0, Total=812 [2024-11-09 07:05:18,678 INFO L87 Difference]: Start difference. First operand 1294 states and 1460 transitions. Second operand has 18 states, 12 states have (on average 6.916666666666667) internal successors, (83), 13 states have internal predecessors, (83), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:05:24,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:05:24,812 INFO L93 Difference]: Finished difference Result 1842 states and 2069 transitions. [2024-11-09 07:05:24,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 07:05:24,813 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 12 states have (on average 6.916666666666667) internal successors, (83), 13 states have internal predecessors, (83), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 103 [2024-11-09 07:05:24,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:05:24,818 INFO L225 Difference]: With dead ends: 1842 [2024-11-09 07:05:24,819 INFO L226 Difference]: Without dead ends: 1253 [2024-11-09 07:05:24,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 241 SyntacticMatches, 44 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=210, Invalid=720, Unknown=0, NotChecked=0, Total=930 [2024-11-09 07:05:24,821 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 160 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:05:24,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 84 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-09 07:05:24,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2024-11-09 07:05:24,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1250. [2024-11-09 07:05:24,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1178 states have (on average 1.100169779286927) internal successors, (1296), 1193 states have internal predecessors, (1296), 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 07:05:24,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1404 transitions. [2024-11-09 07:05:24,990 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1404 transitions. Word has length 103 [2024-11-09 07:05:24,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:05:24,991 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1404 transitions. [2024-11-09 07:05:24,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 12 states have (on average 6.916666666666667) internal successors, (83), 13 states have internal predecessors, (83), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:05:24,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1404 transitions. [2024-11-09 07:05:24,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 07:05:24,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:24,993 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:25,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 07:05:25,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:25,194 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 07:05:25,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:25,194 INFO L85 PathProgramCache]: Analyzing trace with hash 195460921, now seen corresponding path program 1 times [2024-11-09 07:05:25,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:05:25,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937651604] [2024-11-09 07:05:25,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:25,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:25,482 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 07:05:25,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:05:25,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937651604] [2024-11-09 07:05:25,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937651604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:25,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53510542] [2024-11-09 07:05:25,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:25,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:25,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:05:25,488 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:25,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 07:05:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:25,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:05:25,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 07:05:26,351 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:26,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53510542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:26,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:05:26,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-11-09 07:05:26,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870432006] [2024-11-09 07:05:26,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:26,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:05:26,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:05:26,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:05:26,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:05:26,354 INFO L87 Difference]: Start difference. First operand 1250 states and 1404 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 07:05:27,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:05:27,250 INFO L93 Difference]: Finished difference Result 1397 states and 1579 transitions. [2024-11-09 07:05:27,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:05:27,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 103 [2024-11-09 07:05:27,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:05:27,257 INFO L225 Difference]: With dead ends: 1397 [2024-11-09 07:05:27,257 INFO L226 Difference]: Without dead ends: 1396 [2024-11-09 07:05:27,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-09 07:05:27,259 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 110 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:05:27,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 152 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 07:05:27,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2024-11-09 07:05:27,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 1249. [2024-11-09 07:05:27,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1178 states have (on average 1.0916808149405772) internal successors, (1286), 1192 states have internal predecessors, (1286), 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 07:05:27,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1394 transitions. [2024-11-09 07:05:27,417 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1394 transitions. Word has length 103 [2024-11-09 07:05:27,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:05:27,418 INFO L471 AbstractCegarLoop]: Abstraction has 1249 states and 1394 transitions. [2024-11-09 07:05:27,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 07:05:27,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1394 transitions. [2024-11-09 07:05:27,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 07:05:27,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:27,420 INFO L215 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:27,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 07:05:27,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-09 07:05:27,621 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 07:05:27,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:27,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1666896799, now seen corresponding path program 1 times [2024-11-09 07:05:27,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:05:27,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51727725] [2024-11-09 07:05:27,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:27,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:27,897 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 07:05:27,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:05:27,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51727725] [2024-11-09 07:05:27,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51727725] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:27,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781799525] [2024-11-09 07:05:27,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:27,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:27,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:05:27,900 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:27,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 07:05:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:27,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:05:27,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:28,702 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 07:05:28,703 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:05:29,197 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 07:05:29,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781799525] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:05:29,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [427373599] [2024-11-09 07:05:29,200 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-09 07:05:29,201 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:05:29,201 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:05:29,202 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:05:29,202 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:05:33,432 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 198 for LOIs [2024-11-09 07:05:33,623 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:05:33,625 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:05:45,605 WARN L286 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 193 DAG size of output: 80 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:05:54,458 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '27205#(and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~u~0#1| 4611686018427387904)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~v~0#1|) (<= |ULTIMATE.start_main_~u~0#1| 4611686018427387903))' at error location [2024-11-09 07:05:54,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:05:54,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:05:54,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-11-09 07:05:54,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709908725] [2024-11-09 07:05:54,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:05:54,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 07:05:54,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:05:54,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 07:05:54,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=1340, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 07:05:54,462 INFO L87 Difference]: Start difference. First operand 1249 states and 1394 transitions. Second operand has 16 states, 15 states have (on average 17.0) internal successors, (255), 16 states have internal predecessors, (255), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2024-11-09 07:05:56,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:05:56,583 INFO L93 Difference]: Finished difference Result 1258 states and 1404 transitions. [2024-11-09 07:05:56,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 07:05:56,583 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 17.0) internal successors, (255), 16 states have internal predecessors, (255), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) Word has length 109 [2024-11-09 07:05:56,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:05:56,588 INFO L225 Difference]: With dead ends: 1258 [2024-11-09 07:05:56,588 INFO L226 Difference]: Without dead ends: 1256 [2024-11-09 07:05:56,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 246 SyntacticMatches, 46 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2147 ImplicationChecksByTransitivity, 21.4s TimeCoverageRelationStatistics Valid=474, Invalid=2076, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 07:05:56,590 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 1084 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:05:56,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 378 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 07:05:56,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2024-11-09 07:05:56,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1248. [2024-11-09 07:05:56,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 1178 states have (on average 1.0780984719864177) internal successors, (1270), 1191 states have internal predecessors, (1270), 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 07:05:56,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1378 transitions. [2024-11-09 07:05:56,733 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1378 transitions. Word has length 109 [2024-11-09 07:05:56,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:05:56,733 INFO L471 AbstractCegarLoop]: Abstraction has 1248 states and 1378 transitions. [2024-11-09 07:05:56,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 17.0) internal successors, (255), 16 states have internal predecessors, (255), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2024-11-09 07:05:56,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1378 transitions. [2024-11-09 07:05:56,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 07:05:56,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:56,735 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:56,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 07:05:56,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:56,936 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 07:05:56,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:56,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1351928819, now seen corresponding path program 1 times [2024-11-09 07:05:56,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:05:56,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124927145] [2024-11-09 07:05:56,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:56,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:57,149 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 14 proven. 47 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 07:05:57,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:05:57,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124927145] [2024-11-09 07:05:57,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124927145] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:57,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329026608] [2024-11-09 07:05:57,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:57,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:57,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:05:57,153 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:57,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 07:05:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:57,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:05:57,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:57,711 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 07:05:57,711 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:57,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329026608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:57,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:05:57,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 07:05:57,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595949155] [2024-11-09 07:05:57,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:57,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:05:57,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:05:57,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:05:57,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:05:57,714 INFO L87 Difference]: Start difference. First operand 1248 states and 1378 transitions. Second operand has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 07:05:58,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:05:58,419 INFO L93 Difference]: Finished difference Result 1250 states and 1378 transitions. [2024-11-09 07:05:58,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:05:58,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 123 [2024-11-09 07:05:58,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:05:58,424 INFO L225 Difference]: With dead ends: 1250 [2024-11-09 07:05:58,424 INFO L226 Difference]: Without dead ends: 1248 [2024-11-09 07:05:58,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:05:58,425 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 165 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:05:58,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 302 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 07:05:58,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2024-11-09 07:05:58,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1235. [2024-11-09 07:05:58,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 1167 states have (on average 1.0702656383890317) internal successors, (1249), 1178 states have internal predecessors, (1249), 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 07:05:58,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1357 transitions. [2024-11-09 07:05:58,575 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1357 transitions. Word has length 123 [2024-11-09 07:05:58,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:05:58,575 INFO L471 AbstractCegarLoop]: Abstraction has 1235 states and 1357 transitions. [2024-11-09 07:05:58,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 07:05:58,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1357 transitions. [2024-11-09 07:05:58,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-09 07:05:58,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:58,577 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:58,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 07:05:58,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:58,778 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 07:05:58,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:58,779 INFO L85 PathProgramCache]: Analyzing trace with hash -900108942, now seen corresponding path program 1 times [2024-11-09 07:05:58,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:05:58,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790338943] [2024-11-09 07:05:58,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:58,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:59,063 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 07:05:59,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:05:59,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790338943] [2024-11-09 07:05:59,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790338943] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:59,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227420572] [2024-11-09 07:05:59,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:59,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:59,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:05:59,067 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:59,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 07:05:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:59,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:05:59,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:00,233 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 07:06:00,233 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:06:00,917 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 07:06:00,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227420572] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:06:00,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1983391680] [2024-11-09 07:06:00,920 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2024-11-09 07:06:00,920 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:06:00,920 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:06:00,920 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:06:00,921 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:06:05,308 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 07:06:05,309 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:06:05,311 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:06:22,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1983391680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:22,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:06:22,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [6, 6, 6] total 47 [2024-11-09 07:06:22,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439210552] [2024-11-09 07:06:22,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:22,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 07:06:22,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:06:22,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 07:06:22,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=1842, Unknown=0, NotChecked=0, Total=2256 [2024-11-09 07:06:22,655 INFO L87 Difference]: Start difference. First operand 1235 states and 1357 transitions. Second operand has 33 states, 25 states have (on average 3.36) internal successors, (84), 27 states have internal predecessors, (84), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:06:37,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:37,453 INFO L93 Difference]: Finished difference Result 3613 states and 4012 transitions. [2024-11-09 07:06:37,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-09 07:06:37,453 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 25 states have (on average 3.36) internal successors, (84), 27 states have internal predecessors, (84), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 152 [2024-11-09 07:06:37,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:37,459 INFO L225 Difference]: With dead ends: 3613 [2024-11-09 07:06:37,459 INFO L226 Difference]: Without dead ends: 1675 [2024-11-09 07:06:37,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 347 SyntacticMatches, 68 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3184 ImplicationChecksByTransitivity, 23.2s TimeCoverageRelationStatistics Valid=1077, Invalid=3753, Unknown=0, NotChecked=0, Total=4830 [2024-11-09 07:06:37,463 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 1254 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 2390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:37,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1257 Valid, 118 Invalid, 2390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 2270 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-11-09 07:06:37,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2024-11-09 07:06:37,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1540. [2024-11-09 07:06:37,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1460 states have (on average 1.0643835616438355) internal successors, (1554), 1471 states have internal predecessors, (1554), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-09 07:06:37,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 1686 transitions. [2024-11-09 07:06:37,679 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 1686 transitions. Word has length 152 [2024-11-09 07:06:37,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:37,683 INFO L471 AbstractCegarLoop]: Abstraction has 1540 states and 1686 transitions. [2024-11-09 07:06:37,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 25 states have (on average 3.36) internal successors, (84), 27 states have internal predecessors, (84), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:06:37,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 1686 transitions. [2024-11-09 07:06:37,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-09 07:06:37,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:37,686 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:37,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 07:06:37,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:37,890 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 07:06:37,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:37,891 INFO L85 PathProgramCache]: Analyzing trace with hash 257546600, now seen corresponding path program 1 times [2024-11-09 07:06:37,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:06:37,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939015807] [2024-11-09 07:06:37,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:37,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:06:37,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1405034518] [2024-11-09 07:06:37,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:37,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:37,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:06:37,918 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:06:37,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 07:06:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:38,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 07:06:38,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:07:13,639 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 3 proven. 56 refuted. 23 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 07:07:13,639 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:07:22,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:07:22,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939015807] [2024-11-09 07:07:22,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:07:22,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405034518] [2024-11-09 07:07:22,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405034518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:07:22,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [423305316] [2024-11-09 07:07:22,371 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2024-11-09 07:07:22,371 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:07:22,371 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:07:22,372 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:07:22,372 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:07:27,989 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 07:07:27,990 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 07:07:27,992 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:10:34,163 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40629#(and (<= 0 (+ 2305843009213693952 |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|)) (exists ((|v_ULTIMATE.start_main_~u~0#1_128| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~u~0#1_128| |v_ULTIMATE.start_main_~u~0#1_128|)) (<= |ULTIMATE.start_main_~v~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~A~0#1| 20) (<= 0 (+ |v_ULTIMATE.start_main_~u~0#1_128| 4611686018427387904)) (<= 1 |ULTIMATE.start_main_~v~0#1|) (or (and (<= |v_ULTIMATE.start_main_~u~0#1_128| 4611686018427387903) (<= |ULTIMATE.start_main_~r~0#1| 0)) (and (= (+ (* |v_ULTIMATE.start_main_~u~0#1_128| |v_ULTIMATE.start_main_~u~0#1_128|) (* 2 |ULTIMATE.start_main_~v~0#1|)) (+ (* |ULTIMATE.start_main_~A~0#1| 4) (* |ULTIMATE.start_main_~r~0#1| 4) (* |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~v~0#1|) (* 2 |v_ULTIMATE.start_main_~u~0#1_128|))) (<= (* |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~v~0#1|) 9223372036854775807) (<= (+ 3 |ULTIMATE.start_main_~r~0#1|) |v_ULTIMATE.start_main_~u~0#1_128|))) (<= 0 |ULTIMATE.start_main_~A~0#1|))))' at error location [2024-11-09 07:10:34,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:10:34,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:10:34,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 07:10:34,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189537960] [2024-11-09 07:10:34,164 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:10:34,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:10:34,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:10:34,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:10:34,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=2118, Unknown=19, NotChecked=0, Total=2550 [2024-11-09 07:10:34,166 INFO L87 Difference]: Start difference. First operand 1540 states and 1686 transitions. Second operand has 12 states, 9 states have (on average 15.444444444444445) internal successors, (139), 12 states have internal predecessors, (139), 6 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-09 07:10:36,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:10:38,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:10:40,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:10:42,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:10:44,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:10:46,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:10:48,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:10:50,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:10:52,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:10:54,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:10:56,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:10:58,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:11:01,011 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-09 07:11:01,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2024-11-09 07:11:01,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 343 SyntacticMatches, 74 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2526 ImplicationChecksByTransitivity, 214.8s TimeCoverageRelationStatistics Valid=413, Invalid=2118, Unknown=19, NotChecked=0, Total=2550 [2024-11-09 07:11:01,013 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:11:01,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 12 Unknown, 0 Unchecked, 24.7s Time] [2024-11-09 07:11:01,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 07:11:01,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-09 07:11:01,215 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:665) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1655) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:385) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 36 more [2024-11-09 07:11:01,222 INFO L158 Benchmark]: Toolchain (without parser) took 716390.55ms. Allocated memory was 132.1MB in the beginning and 629.1MB in the end (delta: 497.0MB). Free memory was 99.4MB in the beginning and 437.3MB in the end (delta: -337.9MB). Peak memory consumption was 162.7MB. Max. memory is 16.1GB. [2024-11-09 07:11:01,222 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 132.1MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:11:01,223 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.98ms. Allocated memory is still 132.1MB. Free memory was 99.1MB in the beginning and 86.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 07:11:01,223 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.53ms. Allocated memory is still 132.1MB. Free memory was 85.6MB in the beginning and 83.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:11:01,223 INFO L158 Benchmark]: Boogie Preprocessor took 37.79ms. Allocated memory is still 132.1MB. Free memory was 83.7MB in the beginning and 82.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:11:01,223 INFO L158 Benchmark]: RCFGBuilder took 1320.65ms. Allocated memory is still 132.1MB. Free memory was 82.3MB in the beginning and 99.9MB in the end (delta: -17.6MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2024-11-09 07:11:01,223 INFO L158 Benchmark]: TraceAbstraction took 714472.58ms. Allocated memory was 132.1MB in the beginning and 629.1MB in the end (delta: 497.0MB). Free memory was 99.3MB in the beginning and 437.3MB in the end (delta: -338.0MB). Peak memory consumption was 161.1MB. Max. memory is 16.1GB. [2024-11-09 07:11:01,225 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 132.1MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.98ms. Allocated memory is still 132.1MB. Free memory was 99.1MB in the beginning and 86.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.53ms. Allocated memory is still 132.1MB. Free memory was 85.6MB in the beginning and 83.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.79ms. Allocated memory is still 132.1MB. Free memory was 83.7MB in the beginning and 82.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1320.65ms. Allocated memory is still 132.1MB. Free memory was 82.3MB in the beginning and 99.9MB in the end (delta: -17.6MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. * TraceAbstraction took 714472.58ms. Allocated memory was 132.1MB in the beginning and 629.1MB in the end (delta: 497.0MB). Free memory was 99.3MB in the beginning and 437.3MB in the end (delta: -338.0MB). Peak memory consumption was 161.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/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_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/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 5343b340ea8da46bc6acd6408dd3dbd3223330cf8901c5f3b9950638a460ce9a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:11:03,933 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:11:04,057 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2024-11-09 07:11:04,063 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:11:04,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:11:04,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:11:04,103 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:11:04,104 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:11:04,105 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:11:04,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:11:04,108 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:11:04,109 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:11:04,109 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:11:04,109 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:11:04,110 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:11:04,110 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:11:04,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:11:04,115 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:11:04,115 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:11:04,116 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:11:04,116 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:11:04,116 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:11:04,117 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:11:04,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:11:04,119 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:11:04,119 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 07:11:04,119 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:11:04,120 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:11:04,120 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 07:11:04,120 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:11:04,121 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:11:04,121 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:11:04,122 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:11:04,122 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:11:04,123 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:11:04,124 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:11:04,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:11:04,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:11:04,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:11:04,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:11:04,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:11:04,126 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 07:11:04,126 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 07:11:04,127 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:11:04,127 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:11:04,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5343b340ea8da46bc6acd6408dd3dbd3223330cf8901c5f3b9950638a460ce9a [2024-11-09 07:11:04,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:11:04,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:11:04,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:11:04,660 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:11:04,661 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:11:04,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound20.c Unable to find full path for "g++" [2024-11-09 07:11:07,373 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:11:07,632 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:11:07,633 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound20.c [2024-11-09 07:11:07,645 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/data/f5512a0d6/f345864743f8406db81cf71b2deb8d4c/FLAG216e29098 [2024-11-09 07:11:07,665 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/data/f5512a0d6/f345864743f8406db81cf71b2deb8d4c [2024-11-09 07:11:07,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:11:07,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:11:07,672 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:11:07,672 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:11:07,679 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:11:07,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:11:07" (1/1) ... [2024-11-09 07:11:07,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6234bb53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:07, skipping insertion in model container [2024-11-09 07:11:07,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:11:07" (1/1) ... [2024-11-09 07:11:07,708 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:11:08,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:11:08,091 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:11:08,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:11:08,196 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:11:08,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:08 WrapperNode [2024-11-09 07:11:08,197 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:11:08,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:11:08,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:11:08,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:11:08,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:08" (1/1) ... [2024-11-09 07:11:08,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:08" (1/1) ... [2024-11-09 07:11:08,273 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 150 [2024-11-09 07:11:08,273 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:11:08,274 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:11:08,274 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:11:08,274 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:11:08,298 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:08" (1/1) ... [2024-11-09 07:11:08,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:08" (1/1) ... [2024-11-09 07:11:08,305 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:08" (1/1) ... [2024-11-09 07:11:08,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:08" (1/1) ... [2024-11-09 07:11:08,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:08" (1/1) ... [2024-11-09 07:11:08,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:08" (1/1) ... [2024-11-09 07:11:08,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:08" (1/1) ... [2024-11-09 07:11:08,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:08" (1/1) ... [2024-11-09 07:11:08,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:11:08,337 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:11:08,337 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:11:08,337 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:11:08,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:08" (1/1) ... [2024-11-09 07:11:08,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:11:08,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:11:08,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:11:08,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:11:08,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:11:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 07:11:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:11:08,425 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:11:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:11:08,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:11:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 07:11:08,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 07:11:08,518 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:11:08,521 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:12:11,573 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-09 07:12:11,573 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:12:11,611 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:12:11,614 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 07:12:11,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:12:11 BoogieIcfgContainer [2024-11-09 07:12:11,615 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:12:11,618 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:12:11,620 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:12:11,624 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:12:11,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:11:07" (1/3) ... [2024-11-09 07:12:11,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5dc2f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:12:11, skipping insertion in model container [2024-11-09 07:12:11,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:11:08" (2/3) ... [2024-11-09 07:12:11,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5dc2f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:12:11, skipping insertion in model container [2024-11-09 07:12:11,629 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:12:11" (3/3) ... [2024-11-09 07:12:11,632 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat1-ll_valuebound20.c [2024-11-09 07:12:11,657 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:12:11,659 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 92 error locations. [2024-11-09 07:12:11,749 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:12:11,759 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;@2289e39d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:12:11,759 INFO L334 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2024-11-09 07:12:11,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 215 states, 112 states have (on average 1.9196428571428572) internal successors, (215), 204 states have internal predecessors, (215), 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 07:12:11,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 07:12:11,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:12:11,780 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:12:11,780 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 07:12:11,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:12:11,788 INFO L85 PathProgramCache]: Analyzing trace with hash -36063535, now seen corresponding path program 1 times [2024-11-09 07:12:11,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:12:11,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898315763] [2024-11-09 07:12:11,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:11,808 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:12:11,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:12:11,813 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:12:11,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 07:12:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:11,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 07:12:11,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:12:11,914 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:12:11,914 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:12:11,915 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:12:11,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898315763] [2024-11-09 07:12:11,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898315763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:12:11,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:12:11,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:12:11,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111470699] [2024-11-09 07:12:11,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:12:11,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:12:11,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:12:11,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:12:11,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:12:11,980 INFO L87 Difference]: Start difference. First operand has 215 states, 112 states have (on average 1.9196428571428572) internal successors, (215), 204 states have internal predecessors, (215), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:12:12,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:12:12,029 INFO L93 Difference]: Finished difference Result 414 states and 465 transitions. [2024-11-09 07:12:12,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:12:12,032 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-11-09 07:12:12,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:12:12,043 INFO L225 Difference]: With dead ends: 414 [2024-11-09 07:12:12,044 INFO L226 Difference]: Without dead ends: 196 [2024-11-09 07:12:12,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 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 07:12:12,053 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:12:12,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:12:12,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-09 07:12:12,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-11-09 07:12:12,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 107 states have (on average 1.766355140186916) internal successors, (189), 186 states have internal predecessors, (189), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:12:12,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 203 transitions. [2024-11-09 07:12:12,139 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 203 transitions. Word has length 14 [2024-11-09 07:12:12,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:12:12,140 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 203 transitions. [2024-11-09 07:12:12,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:12:12,142 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 203 transitions. [2024-11-09 07:12:12,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 07:12:12,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:12:12,144 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:12:12,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 07:12:12,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:12:12,347 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 07:12:12,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:12:12,349 INFO L85 PathProgramCache]: Analyzing trace with hash 220212497, now seen corresponding path program 1 times [2024-11-09 07:12:12,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:12:12,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505918166] [2024-11-09 07:12:12,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:12,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:12:12,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:12:12,352 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:12:12,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 07:12:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:12,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:12:12,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:12:12,729 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:12:12,729 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:12:12,730 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:12:12,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505918166] [2024-11-09 07:12:12,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505918166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:12:12,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:12:12,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:12:12,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566921002] [2024-11-09 07:12:12,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:12:12,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:12:12,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:12:12,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:12:12,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:12:12,735 INFO L87 Difference]: Start difference. First operand 196 states and 203 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:12:14,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:12:14,009 INFO L93 Difference]: Finished difference Result 196 states and 203 transitions. [2024-11-09 07:12:14,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:12:14,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-09 07:12:14,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:12:14,019 INFO L225 Difference]: With dead ends: 196 [2024-11-09 07:12:14,019 INFO L226 Difference]: Without dead ends: 190 [2024-11-09 07:12:14,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:12:14,021 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 9 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:12:14,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 699 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 07:12:14,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-09 07:12:14,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-11-09 07:12:14,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 107 states have (on average 1.7102803738317758) internal successors, (183), 180 states have internal predecessors, (183), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:12:14,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 197 transitions. [2024-11-09 07:12:14,040 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 197 transitions. Word has length 18 [2024-11-09 07:12:14,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:12:14,042 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 197 transitions. [2024-11-09 07:12:14,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:12:14,043 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 197 transitions. [2024-11-09 07:12:14,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 07:12:14,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:12:14,044 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:12:14,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 07:12:14,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:12:14,246 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 07:12:14,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:12:14,247 INFO L85 PathProgramCache]: Analyzing trace with hash -607868052, now seen corresponding path program 1 times [2024-11-09 07:12:14,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:12:14,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225571051] [2024-11-09 07:12:14,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:14,248 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:12:14,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:12:14,252 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:12:14,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 07:12:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:14,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:12:14,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:12:14,952 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 07:12:14,952 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:12:15,224 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:12:15,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225571051] [2024-11-09 07:12:15,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225571051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:12:15,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [381217727] [2024-11-09 07:12:15,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:15,227 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:12:15,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:12:15,232 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:12:15,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-09 07:12:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:16,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:12:16,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:12:16,425 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 07:12:16,425 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:12:16,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [381217727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:12:16,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989700834] [2024-11-09 07:12:16,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:16,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:12:16,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:12:16,586 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:12:16,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:12:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:16,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:12:16,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:12:17,288 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 07:12:17,289 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:12:17,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989700834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:12:17,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:12:17,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-09 07:12:17,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147815751] [2024-11-09 07:12:17,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:12:17,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:12:17,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:12:17,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:12:17,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:12:17,448 INFO L87 Difference]: Start difference. First operand 190 states and 197 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:12:19,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:20,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:21,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:12:21,332 INFO L93 Difference]: Finished difference Result 190 states and 197 transitions. [2024-11-09 07:12:21,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:12:21,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-11-09 07:12:21,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:12:21,335 INFO L225 Difference]: With dead ends: 190 [2024-11-09 07:12:21,335 INFO L226 Difference]: Without dead ends: 187 [2024-11-09 07:12:21,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:12:21,337 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 147 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:12:21,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 494 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 108 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2024-11-09 07:12:21,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-09 07:12:21,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2024-11-09 07:12:21,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 107 states have (on average 1.6822429906542056) internal successors, (180), 177 states have internal predecessors, (180), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:12:21,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 194 transitions. [2024-11-09 07:12:21,372 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 194 transitions. Word has length 39 [2024-11-09 07:12:21,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:12:21,373 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 194 transitions. [2024-11-09 07:12:21,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:12:21,375 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 194 transitions. [2024-11-09 07:12:21,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 07:12:21,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:12:21,377 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:12:21,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-09 07:12:21,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-09 07:12:21,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 07:12:21,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:12:21,978 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-09 07:12:21,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:12:21,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1664040351, now seen corresponding path program 1 times [2024-11-09 07:12:21,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:12:21,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011536215] [2024-11-09 07:12:21,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:21,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:12:21,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:12:21,985 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:12:21,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fb3a10-c1fc-4309-9a15-46fbd6359dc3/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 07:12:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:22,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 07:12:22,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:12:24,446 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 07:12:24,447 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:12:28,786 WARN L873 $PredicateComparison]: unable to prove that (bvsle (let ((.cse0 ((_ sign_extend 32) |c_ULTIMATE.start_main_~A~0#1|))) (bvadd ((_ sign_extend 1) (bvadd (bvneg .cse0) (let ((.cse1 ((_ sign_extend 32) |c_ULTIMATE.start_main_~R~0#1|))) (bvmul .cse1 .cse1)))) ((_ sign_extend 1) .cse0))) (_ bv9223372036854775807 65)) is different from true [2024-11-09 07:12:51,714 WARN L873 $PredicateComparison]: unable to prove that (or (not (= (bvsrem |c_ULTIMATE.start_main_~A~0#1| (_ bv2 32)) (_ bv1 32))) (bvsle (let ((.cse0 ((_ sign_extend 32) |c_ULTIMATE.start_main_~A~0#1|))) (bvadd ((_ sign_extend 1) (bvadd (bvneg .cse0) (let ((.cse1 ((_ sign_extend 32) |c_ULTIMATE.start_main_~R~0#1|))) (bvmul .cse1 .cse1)))) ((_ sign_extend 1) .cse0))) (_ bv9223372036854775807 65))) is different from true [2024-11-09 07:13:01,857 WARN L873 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~R~0#1_BEFORE_CALL_3| (_ BitVec 32)) (|v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_13| (_ BitVec 32))) (or (bvsle (let ((.cse1 ((_ sign_extend 32) |v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_13|))) (bvadd ((_ sign_extend 1) (bvadd (let ((.cse0 ((_ sign_extend 32) |v_ULTIMATE.start_main_~R~0#1_BEFORE_CALL_3|))) (bvmul .cse0 .cse0)) (bvneg .cse1))) ((_ sign_extend 1) .cse1))) (_ bv9223372036854775807 65)) (= (_ bv1 32) (bvsrem |v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_13| (_ bv2 32)))))) is different from true [2024-11-09 07:13:20,128 WARN L873 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~R~0#1_BEFORE_CALL_3| (_ BitVec 32)) (|v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_13| (_ BitVec 32))) (or (bvsle (let ((.cse1 ((_ sign_extend 32) |v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_13|))) (bvadd ((_ sign_extend 1) (bvadd (let ((.cse0 ((_ sign_extend 32) |v_ULTIMATE.start_main_~R~0#1_BEFORE_CALL_3|))) (bvmul .cse0 .cse0)) (bvneg .cse1))) ((_ sign_extend 1) .cse1))) (_ bv9223372036854775807 65)) (= (_ bv1 32) (bvsrem |v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_13| (_ bv2 32)))))) is different from true