./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/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_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/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_c211e002-d36c-47c5-9f0e-3360401b10ca/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 f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:01:05,198 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:01:05,315 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:01:05,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:01:05,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:01:05,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:01:05,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:01:05,376 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:01:05,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:01:05,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:01:05,379 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:01:05,379 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:01:05,380 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:01:05,382 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:01:05,386 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:01:05,387 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:01:05,387 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:01:05,387 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:01:05,388 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:01:05,388 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:01:05,388 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:01:05,389 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:01:05,390 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:01:05,390 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:01:05,391 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:01:05,393 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:01:05,393 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:01:05,394 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:01:05,394 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:01:05,394 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:01:05,395 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:01:05,395 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:01:05,395 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:01:05,396 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:01:05,396 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:01:05,396 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:01:05,396 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:01:05,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:01:05,397 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:01:05,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:01:05,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:01:05,400 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:01:05,400 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:01:05,400 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:01:05,401 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:01:05,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:01:05,401 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:01:05,401 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:01:05,401 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:01:05,402 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_c211e002-d36c-47c5-9f0e-3360401b10ca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c [2024-11-09 05:01:05,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:01:05,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:01:05,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:01:05,733 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:01:05,734 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:01:05,735 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c Unable to find full path for "g++" [2024-11-09 05:01:08,342 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:01:08,651 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:01:08,652 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2024-11-09 05:01:08,684 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/data/d49fdfd59/7ef1183636dd411faf70baf4fadb5829/FLAGbd43a89d3 [2024-11-09 05:01:08,935 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/data/d49fdfd59/7ef1183636dd411faf70baf4fadb5829 [2024-11-09 05:01:08,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:01:08,941 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:01:08,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:01:08,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:01:08,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:01:08,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:01:08" (1/1) ... [2024-11-09 05:01:08,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40fe5776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:08, skipping insertion in model container [2024-11-09 05:01:08,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:01:08" (1/1) ... [2024-11-09 05:01:09,010 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:01:09,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:01:09,391 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:01:09,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:01:09,517 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:01:09,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:09 WrapperNode [2024-11-09 05:01:09,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:01:09,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:01:09,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:01:09,521 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:01:09,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:09" (1/1) ... [2024-11-09 05:01:09,547 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:09" (1/1) ... [2024-11-09 05:01:09,596 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 166 [2024-11-09 05:01:09,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:01:09,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:01:09,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:01:09,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:01:09,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:09" (1/1) ... [2024-11-09 05:01:09,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:09" (1/1) ... [2024-11-09 05:01:09,616 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:09" (1/1) ... [2024-11-09 05:01:09,620 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:09" (1/1) ... [2024-11-09 05:01:09,633 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:09" (1/1) ... [2024-11-09 05:01:09,638 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:09" (1/1) ... [2024-11-09 05:01:09,644 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:09" (1/1) ... [2024-11-09 05:01:09,646 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:09" (1/1) ... [2024-11-09 05:01:09,654 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:01:09,659 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:01:09,660 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:01:09,660 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:01:09,661 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:09" (1/1) ... [2024-11-09 05:01:09,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:01:09,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:01:09,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:01:09,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:01:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:01:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:01:09,757 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-09 05:01:09,757 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-09 05:01:09,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:01:09,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:01:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:01:09,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:01:09,894 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:01:09,897 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:01:10,530 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2024-11-09 05:01:10,530 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:01:10,802 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:01:10,804 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 05:01:10,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:01:10 BoogieIcfgContainer [2024-11-09 05:01:10,805 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:01:10,808 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:01:10,810 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:01:10,814 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:01:10,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:01:08" (1/3) ... [2024-11-09 05:01:10,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a340298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:01:10, skipping insertion in model container [2024-11-09 05:01:10,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:09" (2/3) ... [2024-11-09 05:01:10,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a340298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:01:10, skipping insertion in model container [2024-11-09 05:01:10,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:01:10" (3/3) ... [2024-11-09 05:01:10,821 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2024-11-09 05:01:10,846 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:01:10,847 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-09 05:01:10,938 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:01:10,945 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;@5ac7d4c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:01:10,946 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-09 05:01:10,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 64 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 05:01:10,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 05:01:10,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:10,962 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:10,963 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:10,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:10,970 INFO L85 PathProgramCache]: Analyzing trace with hash -2043060220, now seen corresponding path program 1 times [2024-11-09 05:01:10,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:10,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082860413] [2024-11-09 05:01:10,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:10,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:11,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:01:11,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:11,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082860413] [2024-11-09 05:01:11,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082860413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:11,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:11,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:01:11,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124996543] [2024-11-09 05:01:11,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:11,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:01:11,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:11,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:01:11,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:01:11,274 INFO L87 Difference]: Start difference. First operand has 71 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 64 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:01:11,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:11,374 INFO L93 Difference]: Finished difference Result 136 states and 177 transitions. [2024-11-09 05:01:11,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:01:11,378 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 05:01:11,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:11,392 INFO L225 Difference]: With dead ends: 136 [2024-11-09 05:01:11,392 INFO L226 Difference]: Without dead ends: 60 [2024-11-09 05:01:11,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:01:11,404 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:11,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:01:11,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-09 05:01:11,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-09 05:01:11,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 41 states have (on average 1.4878048780487805) internal successors, (61), 54 states have internal predecessors, (61), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:11,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2024-11-09 05:01:11,495 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 8 [2024-11-09 05:01:11,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:11,497 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2024-11-09 05:01:11,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:01:11,498 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2024-11-09 05:01:11,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 05:01:11,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:11,499 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:11,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:01:11,502 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:11,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:11,504 INFO L85 PathProgramCache]: Analyzing trace with hash -2044225379, now seen corresponding path program 1 times [2024-11-09 05:01:11,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:11,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439718173] [2024-11-09 05:01:11,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:11,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:11,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:01:11,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:11,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439718173] [2024-11-09 05:01:11,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439718173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:11,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:11,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:01:11,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954516842] [2024-11-09 05:01:11,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:11,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:01:11,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:11,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:01:11,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:01:11,713 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:01:11,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:11,968 INFO L93 Difference]: Finished difference Result 156 states and 190 transitions. [2024-11-09 05:01:11,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:01:11,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 05:01:11,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:11,976 INFO L225 Difference]: With dead ends: 156 [2024-11-09 05:01:11,976 INFO L226 Difference]: Without dead ends: 98 [2024-11-09 05:01:11,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:01:11,980 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 54 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:11,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 148 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:01:11,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-09 05:01:12,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 90. [2024-11-09 05:01:12,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 83 states have internal predecessors, (103), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:12,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 111 transitions. [2024-11-09 05:01:12,012 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 111 transitions. Word has length 8 [2024-11-09 05:01:12,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:12,013 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 111 transitions. [2024-11-09 05:01:12,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:01:12,014 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 111 transitions. [2024-11-09 05:01:12,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 05:01:12,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:12,015 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:12,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:01:12,015 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:12,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:12,019 INFO L85 PathProgramCache]: Analyzing trace with hash -2124773928, now seen corresponding path program 1 times [2024-11-09 05:01:12,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:12,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257087764] [2024-11-09 05:01:12,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:12,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:12,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:01:12,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:12,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257087764] [2024-11-09 05:01:12,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257087764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:12,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:12,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:01:12,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356540744] [2024-11-09 05:01:12,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:12,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:01:12,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:12,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:01:12,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:01:12,219 INFO L87 Difference]: Start difference. First operand 90 states and 111 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:01:12,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:12,479 INFO L93 Difference]: Finished difference Result 193 states and 238 transitions. [2024-11-09 05:01:12,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:01:12,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-09 05:01:12,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:12,484 INFO L225 Difference]: With dead ends: 193 [2024-11-09 05:01:12,484 INFO L226 Difference]: Without dead ends: 105 [2024-11-09 05:01:12,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:01:12,493 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 82 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:12,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 150 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:01:12,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-09 05:01:12,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 96. [2024-11-09 05:01:12,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 76 states have (on average 1.4342105263157894) internal successors, (109), 89 states have internal predecessors, (109), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:12,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 117 transitions. [2024-11-09 05:01:12,518 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 117 transitions. Word has length 12 [2024-11-09 05:01:12,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:12,519 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 117 transitions. [2024-11-09 05:01:12,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:01:12,519 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 117 transitions. [2024-11-09 05:01:12,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 05:01:12,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:12,524 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:12,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:01:12,525 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:12,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:12,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1443482217, now seen corresponding path program 1 times [2024-11-09 05:01:12,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:12,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339954130] [2024-11-09 05:01:12,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:12,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:12,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:01:12,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:12,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339954130] [2024-11-09 05:01:12,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339954130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:12,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:12,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:01:12,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787635252] [2024-11-09 05:01:12,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:12,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:01:12,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:12,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:01:12,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:01:12,743 INFO L87 Difference]: Start difference. First operand 96 states and 117 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:01:12,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:12,958 INFO L93 Difference]: Finished difference Result 107 states and 124 transitions. [2024-11-09 05:01:12,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:01:12,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-09 05:01:12,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:12,961 INFO L225 Difference]: With dead ends: 107 [2024-11-09 05:01:12,961 INFO L226 Difference]: Without dead ends: 105 [2024-11-09 05:01:12,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:01:12,966 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 58 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:12,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 189 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:01:12,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-09 05:01:12,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 96. [2024-11-09 05:01:12,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 89 states have internal predecessors, (108), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:12,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 116 transitions. [2024-11-09 05:01:12,996 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 116 transitions. Word has length 13 [2024-11-09 05:01:12,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:12,997 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 116 transitions. [2024-11-09 05:01:12,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:01:13,000 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 116 transitions. [2024-11-09 05:01:13,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 05:01:13,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:13,002 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:13,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:01:13,002 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:13,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:13,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1933036816, now seen corresponding path program 1 times [2024-11-09 05:01:13,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:13,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717311354] [2024-11-09 05:01:13,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:13,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:13,069 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 05:01:13,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:13,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717311354] [2024-11-09 05:01:13,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717311354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:13,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:13,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:01:13,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620654640] [2024-11-09 05:01:13,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:13,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:01:13,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:13,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:01:13,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:01:13,075 INFO L87 Difference]: Start difference. First operand 96 states and 116 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:01:13,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:13,148 INFO L93 Difference]: Finished difference Result 96 states and 116 transitions. [2024-11-09 05:01:13,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:01:13,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-09 05:01:13,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:13,151 INFO L225 Difference]: With dead ends: 96 [2024-11-09 05:01:13,152 INFO L226 Difference]: Without dead ends: 95 [2024-11-09 05:01:13,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:01:13,155 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:13,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:01:13,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-09 05:01:13,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-11-09 05:01:13,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 74 states have (on average 1.4054054054054055) internal successors, (104), 86 states have internal predecessors, (104), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:13,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 112 transitions. [2024-11-09 05:01:13,179 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 112 transitions. Word has length 15 [2024-11-09 05:01:13,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:13,180 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 112 transitions. [2024-11-09 05:01:13,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:01:13,180 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 112 transitions. [2024-11-09 05:01:13,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 05:01:13,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:13,182 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:13,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:01:13,182 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:13,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:13,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1932730578, now seen corresponding path program 1 times [2024-11-09 05:01:13,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:13,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122373866] [2024-11-09 05:01:13,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:13,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:13,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:13,348 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:01:13,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:13,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122373866] [2024-11-09 05:01:13,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122373866] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:01:13,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460593505] [2024-11-09 05:01:13,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:13,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:13,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:01:13,353 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:01:13,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:01:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:13,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:01:13,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:01:13,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:01:13,542 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:01:13,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460593505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:13,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:01:13,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 05:01:13,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722645262] [2024-11-09 05:01:13,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:13,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:01:13,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:13,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:01:13,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:01:13,545 INFO L87 Difference]: Start difference. First operand 93 states and 112 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:01:13,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:13,653 INFO L93 Difference]: Finished difference Result 100 states and 122 transitions. [2024-11-09 05:01:13,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:01:13,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-09 05:01:13,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:13,656 INFO L225 Difference]: With dead ends: 100 [2024-11-09 05:01:13,656 INFO L226 Difference]: Without dead ends: 99 [2024-11-09 05:01:13,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:01:13,658 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 1 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:13,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 107 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:01:13,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-09 05:01:13,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95. [2024-11-09 05:01:13,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 76 states have (on average 1.4078947368421053) internal successors, (107), 88 states have internal predecessors, (107), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:13,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 115 transitions. [2024-11-09 05:01:13,681 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 115 transitions. Word has length 15 [2024-11-09 05:01:13,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:13,685 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 115 transitions. [2024-11-09 05:01:13,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:01:13,686 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 115 transitions. [2024-11-09 05:01:13,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 05:01:13,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:13,687 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:13,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:01:13,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 05:01:13,889 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:13,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:13,891 INFO L85 PathProgramCache]: Analyzing trace with hash 519669387, now seen corresponding path program 1 times [2024-11-09 05:01:13,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:13,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120913103] [2024-11-09 05:01:13,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:13,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:13,982 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:01:13,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:13,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120913103] [2024-11-09 05:01:13,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120913103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:13,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:13,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:01:13,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278713300] [2024-11-09 05:01:13,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:13,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:01:13,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:13,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:01:13,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:01:13,987 INFO L87 Difference]: Start difference. First operand 95 states and 115 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:01:14,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:14,073 INFO L93 Difference]: Finished difference Result 104 states and 126 transitions. [2024-11-09 05:01:14,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:01:14,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-09 05:01:14,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:14,076 INFO L225 Difference]: With dead ends: 104 [2024-11-09 05:01:14,077 INFO L226 Difference]: Without dead ends: 102 [2024-11-09 05:01:14,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:01:14,079 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 3 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:14,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 102 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:01:14,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-09 05:01:14,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 93. [2024-11-09 05:01:14,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 86 states have internal predecessors, (103), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:14,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 111 transitions. [2024-11-09 05:01:14,095 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 111 transitions. Word has length 17 [2024-11-09 05:01:14,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:14,100 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 111 transitions. [2024-11-09 05:01:14,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:01:14,101 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2024-11-09 05:01:14,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 05:01:14,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:14,105 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:14,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 05:01:14,105 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:14,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:14,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1181814336, now seen corresponding path program 1 times [2024-11-09 05:01:14,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:14,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370383584] [2024-11-09 05:01:14,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:14,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:14,207 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:01:14,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:14,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370383584] [2024-11-09 05:01:14,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370383584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:14,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:14,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:01:14,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991975097] [2024-11-09 05:01:14,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:14,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:01:14,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:14,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:01:14,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:01:14,211 INFO L87 Difference]: Start difference. First operand 93 states and 111 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:01:14,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:14,380 INFO L93 Difference]: Finished difference Result 132 states and 160 transitions. [2024-11-09 05:01:14,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:01:14,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-09 05:01:14,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:14,383 INFO L225 Difference]: With dead ends: 132 [2024-11-09 05:01:14,384 INFO L226 Difference]: Without dead ends: 130 [2024-11-09 05:01:14,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:01:14,385 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 72 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:14,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 152 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:01:14,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-09 05:01:14,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 116. [2024-11-09 05:01:14,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 108 states have internal predecessors, (134), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:14,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 142 transitions. [2024-11-09 05:01:14,398 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 142 transitions. Word has length 21 [2024-11-09 05:01:14,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:14,399 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 142 transitions. [2024-11-09 05:01:14,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:01:14,400 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 142 transitions. [2024-11-09 05:01:14,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 05:01:14,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:14,401 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:14,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 05:01:14,402 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:14,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:14,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1209487387, now seen corresponding path program 1 times [2024-11-09 05:01:14,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:14,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981230647] [2024-11-09 05:01:14,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:14,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:01:14,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:14,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981230647] [2024-11-09 05:01:14,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981230647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:14,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:14,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:01:14,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885289081] [2024-11-09 05:01:14,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:14,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:01:14,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:14,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:01:14,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:01:14,487 INFO L87 Difference]: Start difference. First operand 116 states and 142 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:01:14,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:14,669 INFO L93 Difference]: Finished difference Result 126 states and 152 transitions. [2024-11-09 05:01:14,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:01:14,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-09 05:01:14,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:14,672 INFO L225 Difference]: With dead ends: 126 [2024-11-09 05:01:14,673 INFO L226 Difference]: Without dead ends: 124 [2024-11-09 05:01:14,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:01:14,675 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 73 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:14,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 154 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:01:14,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-09 05:01:14,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 111. [2024-11-09 05:01:14,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 92 states have (on average 1.3695652173913044) internal successors, (126), 103 states have internal predecessors, (126), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:14,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 134 transitions. [2024-11-09 05:01:14,702 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 134 transitions. Word has length 21 [2024-11-09 05:01:14,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:14,703 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 134 transitions. [2024-11-09 05:01:14,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:01:14,703 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 134 transitions. [2024-11-09 05:01:14,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 05:01:14,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:14,709 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:14,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 05:01:14,710 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:14,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:14,710 INFO L85 PathProgramCache]: Analyzing trace with hash 484184018, now seen corresponding path program 1 times [2024-11-09 05:01:14,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:14,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085354072] [2024-11-09 05:01:14,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:14,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:14,822 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:01:14,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:14,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085354072] [2024-11-09 05:01:14,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085354072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:14,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:14,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:01:14,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673323545] [2024-11-09 05:01:14,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:14,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:01:14,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:14,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:01:14,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:01:14,825 INFO L87 Difference]: Start difference. First operand 111 states and 134 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:01:14,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:14,981 INFO L93 Difference]: Finished difference Result 121 states and 147 transitions. [2024-11-09 05:01:14,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:01:14,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-11-09 05:01:14,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:14,984 INFO L225 Difference]: With dead ends: 121 [2024-11-09 05:01:14,984 INFO L226 Difference]: Without dead ends: 119 [2024-11-09 05:01:14,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:01:14,986 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 71 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:14,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 145 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:01:14,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-09 05:01:14,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 107. [2024-11-09 05:01:15,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 90 states have (on average 1.3444444444444446) internal successors, (121), 99 states have internal predecessors, (121), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:15,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 129 transitions. [2024-11-09 05:01:15,004 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 129 transitions. Word has length 27 [2024-11-09 05:01:15,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:15,005 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 129 transitions. [2024-11-09 05:01:15,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:01:15,005 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 129 transitions. [2024-11-09 05:01:15,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 05:01:15,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:15,007 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:15,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 05:01:15,010 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:15,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:15,010 INFO L85 PathProgramCache]: Analyzing trace with hash 456510967, now seen corresponding path program 1 times [2024-11-09 05:01:15,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:15,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110203406] [2024-11-09 05:01:15,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:15,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:01:15,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:15,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110203406] [2024-11-09 05:01:15,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110203406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:15,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:15,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:01:15,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340629938] [2024-11-09 05:01:15,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:15,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:01:15,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:15,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:01:15,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:01:15,093 INFO L87 Difference]: Start difference. First operand 107 states and 129 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:01:15,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:15,244 INFO L93 Difference]: Finished difference Result 115 states and 139 transitions. [2024-11-09 05:01:15,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:01:15,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-11-09 05:01:15,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:15,246 INFO L225 Difference]: With dead ends: 115 [2024-11-09 05:01:15,247 INFO L226 Difference]: Without dead ends: 113 [2024-11-09 05:01:15,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:01:15,248 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 72 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:15,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 145 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:01:15,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-09 05:01:15,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 100. [2024-11-09 05:01:15,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 85 states have (on average 1.3294117647058823) internal successors, (113), 92 states have internal predecessors, (113), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:15,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 121 transitions. [2024-11-09 05:01:15,259 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 121 transitions. Word has length 27 [2024-11-09 05:01:15,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:15,260 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 121 transitions. [2024-11-09 05:01:15,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:01:15,260 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 121 transitions. [2024-11-09 05:01:15,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 05:01:15,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:15,262 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] [2024-11-09 05:01:15,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 05:01:15,262 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:15,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:15,263 INFO L85 PathProgramCache]: Analyzing trace with hash -998038583, now seen corresponding path program 1 times [2024-11-09 05:01:15,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:15,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228355588] [2024-11-09 05:01:15,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:15,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:15,428 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 05:01:15,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:15,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228355588] [2024-11-09 05:01:15,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228355588] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:01:15,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097069873] [2024-11-09 05:01:15,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:15,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:15,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:01:15,432 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:01:15,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:01:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:15,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:01:15,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:01:15,579 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 05:01:15,580 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:01:15,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097069873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:15,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:01:15,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 05:01:15,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996612712] [2024-11-09 05:01:15,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:15,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:01:15,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:15,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:01:15,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:01:15,584 INFO L87 Difference]: Start difference. First operand 100 states and 121 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:01:15,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:15,740 INFO L93 Difference]: Finished difference Result 233 states and 282 transitions. [2024-11-09 05:01:15,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:01:15,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 31 [2024-11-09 05:01:15,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:15,742 INFO L225 Difference]: With dead ends: 233 [2024-11-09 05:01:15,743 INFO L226 Difference]: Without dead ends: 135 [2024-11-09 05:01:15,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:01:15,744 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 15 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:15,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 123 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:01:15,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-09 05:01:15,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 104. [2024-11-09 05:01:15,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 88 states have (on average 1.3181818181818181) internal successors, (116), 95 states have internal predecessors, (116), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:15,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 124 transitions. [2024-11-09 05:01:15,757 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 124 transitions. Word has length 31 [2024-11-09 05:01:15,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:15,758 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 124 transitions. [2024-11-09 05:01:15,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:01:15,758 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 124 transitions. [2024-11-09 05:01:15,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 05:01:15,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:15,760 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:15,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 05:01:15,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 05:01:15,964 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:15,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:15,965 INFO L85 PathProgramCache]: Analyzing trace with hash -379242085, now seen corresponding path program 1 times [2024-11-09 05:01:15,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:15,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366875761] [2024-11-09 05:01:15,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:15,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:16,149 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 05:01:16,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:16,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366875761] [2024-11-09 05:01:16,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366875761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:01:16,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8284156] [2024-11-09 05:01:16,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:16,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:16,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:01:16,153 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:01:16,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:01:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:16,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 05:01:16,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:01:16,403 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:01:16,404 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:01:16,861 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:01:16,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8284156] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:01:16,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:01:16,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 9] total 16 [2024-11-09 05:01:16,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377900623] [2024-11-09 05:01:16,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:16,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:01:16,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:16,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:01:16,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:01:16,868 INFO L87 Difference]: Start difference. First operand 104 states and 124 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:01:16,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:16,952 INFO L93 Difference]: Finished difference Result 138 states and 158 transitions. [2024-11-09 05:01:16,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:01:16,953 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2024-11-09 05:01:16,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:16,954 INFO L225 Difference]: With dead ends: 138 [2024-11-09 05:01:16,954 INFO L226 Difference]: Without dead ends: 108 [2024-11-09 05:01:16,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:01:16,955 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:16,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 273 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:01:16,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-09 05:01:16,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2024-11-09 05:01:16,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 88 states have (on average 1.2954545454545454) internal successors, (114), 95 states have internal predecessors, (114), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:16,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 122 transitions. [2024-11-09 05:01:16,967 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 122 transitions. Word has length 37 [2024-11-09 05:01:16,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:16,968 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 122 transitions. [2024-11-09 05:01:16,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:01:16,968 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 122 transitions. [2024-11-09 05:01:16,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 05:01:16,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:16,970 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:16,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:01:17,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 05:01:17,174 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:17,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:17,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1863644619, now seen corresponding path program 1 times [2024-11-09 05:01:17,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:17,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909371762] [2024-11-09 05:01:17,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:17,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:17,472 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 05:01:17,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:17,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909371762] [2024-11-09 05:01:17,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909371762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:01:17,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340535980] [2024-11-09 05:01:17,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:17,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:17,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:01:17,476 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:01:17,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:01:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:17,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 05:01:17,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:01:17,754 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 05:01:17,755 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:01:18,188 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 05:01:18,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340535980] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:01:18,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1491721510] [2024-11-09 05:01:18,220 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2024-11-09 05:01:18,220 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:01:18,227 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:01:18,236 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:01:18,236 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:01:19,263 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 11 for LOIs [2024-11-09 05:01:19,383 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:01:23,154 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4321#(and (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (exists ((|v_ULTIMATE.start_mulflt_~eb~1#1_23| Int) (|v_ULTIMATE.start_mulflt_~b#1_34| Int)) (= (div (mod |v_ULTIMATE.start_mulflt_~b#1_34| 4294967296) 16777216) (+ |v_ULTIMATE.start_mulflt_~eb~1#1_23| 128))) (or (and (exists ((|v_ULTIMATE.start_mulflt_~mb~1#1_41| Int)) (and (not (= (mod |v_ULTIMATE.start_mulflt_~mb~1#1_41| 4294967296) 0)) (<= (mod |v_ULTIMATE.start_mulflt_~mb~1#1_41| 4294967296) (mod |ULTIMATE.start_mulflt_~mb~1#1| 4294967296)) (<= (mod |ULTIMATE.start_mulflt_~mb~1#1| 4294967296) (+ 16777216 (mod |v_ULTIMATE.start_mulflt_~mb~1#1_41| 4294967296))) (not (= 16777216 (mod |v_ULTIMATE.start_mulflt_~mb~1#1_41| 4294967296))))) (<= 16777216 (mod |ULTIMATE.start_mulflt_~mb~1#1| 4294967296))) (and (or (exists ((|v_ULTIMATE.start_mulflt_~mb~1#1_41| Int)) (= (mod |v_ULTIMATE.start_mulflt_~mb~1#1_41| 4294967296) 0)) (exists ((|v_ULTIMATE.start_mulflt_~mb~1#1_41| Int)) (= 16777216 (mod |v_ULTIMATE.start_mulflt_~mb~1#1_41| 4294967296)))) (= |ULTIMATE.start_mulflt_~mb~1#1| 16777216))) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= |ULTIMATE.start_main_~ea~2#1| 127))' at error location [2024-11-09 05:01:23,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:01:23,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:01:23,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 8] total 19 [2024-11-09 05:01:23,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020265160] [2024-11-09 05:01:23,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:01:23,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 05:01:23,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:23,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 05:01:23,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=882, Unknown=0, NotChecked=0, Total=992 [2024-11-09 05:01:23,159 INFO L87 Difference]: Start difference. First operand 104 states and 122 transitions. Second operand has 19 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 15 states have internal predecessors, (45), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-09 05:01:23,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:23,792 INFO L93 Difference]: Finished difference Result 234 states and 271 transitions. [2024-11-09 05:01:23,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 05:01:23,793 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 15 states have internal predecessors, (45), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 41 [2024-11-09 05:01:23,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:23,795 INFO L225 Difference]: With dead ends: 234 [2024-11-09 05:01:23,795 INFO L226 Difference]: Without dead ends: 136 [2024-11-09 05:01:23,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 94 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=152, Invalid=1408, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 05:01:23,798 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 25 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:23,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 473 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:01:23,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-09 05:01:23,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 96. [2024-11-09 05:01:23,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 80 states have (on average 1.25) internal successors, (100), 87 states have internal predecessors, (100), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:23,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 108 transitions. [2024-11-09 05:01:23,811 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 108 transitions. Word has length 41 [2024-11-09 05:01:23,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:23,812 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 108 transitions. [2024-11-09 05:01:23,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 15 states have internal predecessors, (45), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-09 05:01:23,812 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 108 transitions. [2024-11-09 05:01:23,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 05:01:23,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:23,813 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:23,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 05:01:24,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 05:01:24,015 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:24,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:24,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1420422715, now seen corresponding path program 1 times [2024-11-09 05:01:24,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:24,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806060665] [2024-11-09 05:01:24,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:24,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:25,060 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 05:01:25,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:25,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806060665] [2024-11-09 05:01:25,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806060665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:25,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:25,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 05:01:25,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676845550] [2024-11-09 05:01:25,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:25,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:01:25,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:25,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:01:25,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 05:01:25,064 INFO L87 Difference]: Start difference. First operand 96 states and 108 transitions. Second operand has 12 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:01:25,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:25,353 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2024-11-09 05:01:25,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:01:25,354 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 48 [2024-11-09 05:01:25,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:25,355 INFO L225 Difference]: With dead ends: 112 [2024-11-09 05:01:25,355 INFO L226 Difference]: Without dead ends: 111 [2024-11-09 05:01:25,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:01:25,357 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 5 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:25,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 406 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:01:25,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-09 05:01:25,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2024-11-09 05:01:25,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 90 states have (on average 1.2222222222222223) internal successors, (110), 98 states have internal predecessors, (110), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 05:01:25,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 123 transitions. [2024-11-09 05:01:25,375 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 123 transitions. Word has length 48 [2024-11-09 05:01:25,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:25,376 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 123 transitions. [2024-11-09 05:01:25,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:01:25,376 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 123 transitions. [2024-11-09 05:01:25,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 05:01:25,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:25,378 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:25,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 05:01:25,378 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:25,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:25,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1083431406, now seen corresponding path program 1 times [2024-11-09 05:01:25,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:25,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795958008] [2024-11-09 05:01:25,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:25,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:25,932 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 05:01:25,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:25,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795958008] [2024-11-09 05:01:25,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795958008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:25,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:25,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:01:25,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70716178] [2024-11-09 05:01:25,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:25,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:01:25,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:25,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:01:25,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:01:25,935 INFO L87 Difference]: Start difference. First operand 109 states and 123 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:01:26,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:26,067 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2024-11-09 05:01:26,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:01:26,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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 49 [2024-11-09 05:01:26,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:26,069 INFO L225 Difference]: With dead ends: 112 [2024-11-09 05:01:26,070 INFO L226 Difference]: Without dead ends: 111 [2024-11-09 05:01:26,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:01:26,071 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 15 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:26,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 110 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:01:26,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-09 05:01:26,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 108. [2024-11-09 05:01:26,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 90 states have (on average 1.211111111111111) internal successors, (109), 97 states have internal predecessors, (109), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 05:01:26,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 122 transitions. [2024-11-09 05:01:26,090 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 122 transitions. Word has length 49 [2024-11-09 05:01:26,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:26,091 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 122 transitions. [2024-11-09 05:01:26,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:01:26,092 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 122 transitions. [2024-11-09 05:01:26,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 05:01:26,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:26,093 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:26,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 05:01:26,094 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:26,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:26,095 INFO L85 PathProgramCache]: Analyzing trace with hash -773364579, now seen corresponding path program 1 times [2024-11-09 05:01:26,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:26,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248210885] [2024-11-09 05:01:26,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:26,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:26,200 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 05:01:26,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:26,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248210885] [2024-11-09 05:01:26,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248210885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:26,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:26,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:01:26,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599811587] [2024-11-09 05:01:26,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:26,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:01:26,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:26,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:01:26,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:01:26,203 INFO L87 Difference]: Start difference. First operand 108 states and 122 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:01:26,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:26,318 INFO L93 Difference]: Finished difference Result 108 states and 122 transitions. [2024-11-09 05:01:26,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:01:26,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (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 50 [2024-11-09 05:01:26,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:26,321 INFO L225 Difference]: With dead ends: 108 [2024-11-09 05:01:26,323 INFO L226 Difference]: Without dead ends: 105 [2024-11-09 05:01:26,324 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 05:01:26,324 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 13 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:26,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 107 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:01:26,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-09 05:01:26,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-09 05:01:26,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 90 states have (on average 1.1777777777777778) internal successors, (106), 94 states have internal predecessors, (106), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 05:01:26,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2024-11-09 05:01:26,343 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 50 [2024-11-09 05:01:26,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:26,344 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2024-11-09 05:01:26,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:01:26,345 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2024-11-09 05:01:26,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 05:01:26,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:26,346 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:26,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 05:01:26,346 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:26,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:26,347 INFO L85 PathProgramCache]: Analyzing trace with hash 277069021, now seen corresponding path program 1 times [2024-11-09 05:01:26,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:26,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884614297] [2024-11-09 05:01:26,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:26,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:26,671 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:01:26,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:26,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884614297] [2024-11-09 05:01:26,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884614297] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:01:26,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026638184] [2024-11-09 05:01:26,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:26,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:26,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:01:26,675 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:01:26,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:01:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:26,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 05:01:26,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:01:27,254 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 05:01:27,254 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:01:27,453 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 05:01:27,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026638184] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:01:27,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:01:27,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 12] total 18 [2024-11-09 05:01:27,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210071599] [2024-11-09 05:01:27,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:27,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:01:27,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:27,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:01:27,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-11-09 05:01:27,456 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:01:27,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:27,550 INFO L93 Difference]: Finished difference Result 105 states and 119 transitions. [2024-11-09 05:01:27,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:01:27,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (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 50 [2024-11-09 05:01:27,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:27,553 INFO L225 Difference]: With dead ends: 105 [2024-11-09 05:01:27,553 INFO L226 Difference]: Without dead ends: 104 [2024-11-09 05:01:27,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-11-09 05:01:27,554 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 8 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:27,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 109 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:01:27,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-09 05:01:27,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 91. [2024-11-09 05:01:27,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.1875) internal successors, (95), 82 states have internal predecessors, (95), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:27,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2024-11-09 05:01:27,565 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 50 [2024-11-09 05:01:27,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:27,566 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2024-11-09 05:01:27,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:01:27,566 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2024-11-09 05:01:27,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 05:01:27,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:27,567 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:27,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 05:01:27,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 05:01:27,772 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:27,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:27,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1795502032, now seen corresponding path program 1 times [2024-11-09 05:01:27,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:27,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621561829] [2024-11-09 05:01:27,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:27,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:27,965 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 05:01:27,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:27,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621561829] [2024-11-09 05:01:27,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621561829] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:01:27,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245397456] [2024-11-09 05:01:27,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:27,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:27,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:01:27,968 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:01:27,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:01:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:28,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:01:28,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:01:28,389 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 05:01:28,390 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:01:28,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245397456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:28,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:01:28,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2024-11-09 05:01:28,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001952068] [2024-11-09 05:01:28,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:28,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:01:28,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:28,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:01:28,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:01:28,394 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:01:28,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:28,663 INFO L93 Difference]: Finished difference Result 205 states and 231 transitions. [2024-11-09 05:01:28,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 05:01:28,664 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2024-11-09 05:01:28,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:28,666 INFO L225 Difference]: With dead ends: 205 [2024-11-09 05:01:28,666 INFO L226 Difference]: Without dead ends: 137 [2024-11-09 05:01:28,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:01:28,667 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 21 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:28,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 148 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:01:28,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-09 05:01:28,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 91. [2024-11-09 05:01:28,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.175) internal successors, (94), 82 states have internal predecessors, (94), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:28,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 102 transitions. [2024-11-09 05:01:28,689 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 102 transitions. Word has length 51 [2024-11-09 05:01:28,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:28,690 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 102 transitions. [2024-11-09 05:01:28,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:01:28,690 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 102 transitions. [2024-11-09 05:01:28,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 05:01:28,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:28,692 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:28,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 05:01:28,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:28,897 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:28,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:28,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1864824556, now seen corresponding path program 1 times [2024-11-09 05:01:28,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:28,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871777191] [2024-11-09 05:01:28,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:28,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:29,102 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 05:01:29,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:29,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871777191] [2024-11-09 05:01:29,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871777191] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:01:29,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016041591] [2024-11-09 05:01:29,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:29,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:29,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:01:29,106 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:01:29,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:01:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:29,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:01:29,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:01:29,268 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 05:01:29,269 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:01:29,440 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 05:01:29,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016041591] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:01:29,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [908430733] [2024-11-09 05:01:29,445 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2024-11-09 05:01:29,446 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:01:29,447 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:01:29,447 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:01:29,447 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:01:30,300 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 46 for LOIs [2024-11-09 05:01:30,586 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:01:35,759 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6962#(and (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (= |ULTIMATE.start_main_~zero~0#1| 0) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (or (and (or (exists ((|v_ULTIMATE.start_mulflt_~mb~1#1_47| Int)) (= (mod |v_ULTIMATE.start_mulflt_~mb~1#1_47| 4294967296) 0)) (exists ((|v_ULTIMATE.start_mulflt_~mb~1#1_47| Int)) (= 16777216 (mod |v_ULTIMATE.start_mulflt_~mb~1#1_47| 4294967296)))) (= |ULTIMATE.start_mulflt_~mb~1#1| 16777216)) (and (exists ((|v_ULTIMATE.start_mulflt_~mb~1#1_47| Int)) (and (<= (mod |v_ULTIMATE.start_mulflt_~mb~1#1_47| 4294967296) (mod |ULTIMATE.start_mulflt_~mb~1#1| 4294967296)) (not (= 16777216 (mod |v_ULTIMATE.start_mulflt_~mb~1#1_47| 4294967296))) (not (= (mod |v_ULTIMATE.start_mulflt_~mb~1#1_47| 4294967296) 0)) (<= (mod |ULTIMATE.start_mulflt_~mb~1#1| 4294967296) (+ 16777216 (mod |v_ULTIMATE.start_mulflt_~mb~1#1_47| 4294967296))))) (<= 16777216 (mod |ULTIMATE.start_mulflt_~mb~1#1| 4294967296)))) (exists ((|v_ULTIMATE.start_mulflt_~ea~1#1_70| Int) (|v_ULTIMATE.start_mulflt_~ea~1#1_71| Int) (|v_ULTIMATE.start_mulflt_~b#1_37| Int)) (and (<= |v_ULTIMATE.start_mulflt_~ea~1#1_71| 2147483647) (= (+ 128 |v_ULTIMATE.start_mulflt_~ea~1#1_71|) (+ (div (mod |v_ULTIMATE.start_mulflt_~b#1_37| 4294967296) 16777216) |v_ULTIMATE.start_mulflt_~ea~1#1_70|)) (<= 2147483624 |v_ULTIMATE.start_mulflt_~ea~1#1_71|))) (<= |ULTIMATE.start_main_~ea~2#1| 127))' at error location [2024-11-09 05:01:35,759 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:01:35,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:01:35,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-09 05:01:35,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814585623] [2024-11-09 05:01:35,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:01:35,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 05:01:35,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:35,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 05:01:35,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1210, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 05:01:35,764 INFO L87 Difference]: Start difference. First operand 91 states and 102 transitions. Second operand has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:01:36,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:36,133 INFO L93 Difference]: Finished difference Result 300 states and 341 transitions. [2024-11-09 05:01:36,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:01:36,134 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2024-11-09 05:01:36,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:36,136 INFO L225 Difference]: With dead ends: 300 [2024-11-09 05:01:36,137 INFO L226 Difference]: Without dead ends: 233 [2024-11-09 05:01:36,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 132 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=211, Invalid=1271, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 05:01:36,139 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 71 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:36,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 230 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:01:36,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-09 05:01:36,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 111. [2024-11-09 05:01:36,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 100 states have (on average 1.18) internal successors, (118), 102 states have internal predecessors, (118), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:01:36,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 126 transitions. [2024-11-09 05:01:36,159 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 126 transitions. Word has length 55 [2024-11-09 05:01:36,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:36,161 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 126 transitions. [2024-11-09 05:01:36,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:01:36,161 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 126 transitions. [2024-11-09 05:01:36,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 05:01:36,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:36,162 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:36,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 05:01:36,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:36,363 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:36,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:36,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1702232593, now seen corresponding path program 1 times [2024-11-09 05:01:36,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:36,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895890428] [2024-11-09 05:01:36,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:36,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:36,648 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 05:01:36,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:36,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895890428] [2024-11-09 05:01:36,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895890428] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:01:36,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364932950] [2024-11-09 05:01:36,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:36,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:36,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:01:36,653 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:01:36,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:01:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:36,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 05:01:36,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:01:36,974 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 05:01:36,974 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:01:36,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364932950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:36,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:01:36,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 15 [2024-11-09 05:01:36,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229321480] [2024-11-09 05:01:36,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:36,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:01:36,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:36,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:01:36,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-09 05:01:36,977 INFO L87 Difference]: Start difference. First operand 111 states and 126 transitions. Second operand has 11 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:01:37,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:37,243 INFO L93 Difference]: Finished difference Result 133 states and 149 transitions. [2024-11-09 05:01:37,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 05:01:37,243 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2024-11-09 05:01:37,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:37,245 INFO L225 Difference]: With dead ends: 133 [2024-11-09 05:01:37,245 INFO L226 Difference]: Without dead ends: 127 [2024-11-09 05:01:37,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-09 05:01:37,247 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 10 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:37,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 278 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:01:37,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-09 05:01:37,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2024-11-09 05:01:37,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 113 states have (on average 1.1415929203539823) internal successors, (129), 115 states have internal predecessors, (129), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 05:01:37,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 142 transitions. [2024-11-09 05:01:37,264 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 142 transitions. Word has length 56 [2024-11-09 05:01:37,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:37,265 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 142 transitions. [2024-11-09 05:01:37,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 05:01:37,265 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 142 transitions. [2024-11-09 05:01:37,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 05:01:37,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:37,266 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-11-09 05:01:37,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 05:01:37,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:37,467 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:37,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:37,467 INFO L85 PathProgramCache]: Analyzing trace with hash -201356305, now seen corresponding path program 1 times [2024-11-09 05:01:37,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:37,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174348726] [2024-11-09 05:01:37,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:37,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:37,747 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:01:37,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:37,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174348726] [2024-11-09 05:01:37,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174348726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:01:37,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83014339] [2024-11-09 05:01:37,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:37,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:37,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:01:37,751 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:01:37,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 05:01:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:38,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:01:38,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:01:38,211 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 24 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:01:38,211 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:01:38,410 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:01:38,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83014339] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:01:38,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [757936264] [2024-11-09 05:01:38,414 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 05:01:38,415 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:01:38,416 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:01:38,416 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:01:38,417 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:01:39,184 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 11 for LOIs [2024-11-09 05:01:39,390 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:01:42,628 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8320#(and (exists ((|v_ULTIMATE.start_mulflt_~b#1_40| Int) (|v_ULTIMATE.start_mulflt_~ea~1#1_76| Int) (|v_ULTIMATE.start_mulflt_~ea~1#1_77| Int)) (and (= (+ 128 |v_ULTIMATE.start_mulflt_~ea~1#1_77|) (+ (div (mod |v_ULTIMATE.start_mulflt_~b#1_40| 4294967296) 16777216) |v_ULTIMATE.start_mulflt_~ea~1#1_76|)) (<= |v_ULTIMATE.start_mulflt_~ea~1#1_77| 2147483647) (<= 2147483624 |v_ULTIMATE.start_mulflt_~ea~1#1_77|))) (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (or (and (or (exists ((|v_ULTIMATE.start_mulflt_~mb~1#1_51| Int)) (= (mod |v_ULTIMATE.start_mulflt_~mb~1#1_51| 4294967296) 0)) (exists ((|v_ULTIMATE.start_mulflt_~mb~1#1_51| Int)) (= (mod |v_ULTIMATE.start_mulflt_~mb~1#1_51| 4294967296) 16777216))) (= |ULTIMATE.start_mulflt_~mb~1#1| 16777216)) (and (exists ((|v_ULTIMATE.start_mulflt_~mb~1#1_51| Int)) (and (<= (mod |v_ULTIMATE.start_mulflt_~mb~1#1_51| 4294967296) (mod |ULTIMATE.start_mulflt_~mb~1#1| 4294967296)) (not (= (mod |v_ULTIMATE.start_mulflt_~mb~1#1_51| 4294967296) 16777216)) (not (= (mod |v_ULTIMATE.start_mulflt_~mb~1#1_51| 4294967296) 0)) (<= (mod |ULTIMATE.start_mulflt_~mb~1#1| 4294967296) (+ (mod |v_ULTIMATE.start_mulflt_~mb~1#1_51| 4294967296) 16777216)))) (<= 16777216 (mod |ULTIMATE.start_mulflt_~mb~1#1| 4294967296)))) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= |ULTIMATE.start_main_~ea~2#1| 127))' at error location [2024-11-09 05:01:42,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:01:42,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:01:42,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-09 05:01:42,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482470674] [2024-11-09 05:01:42,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:01:42,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:01:42,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:42,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:01:42,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=821, Unknown=0, NotChecked=0, Total=992 [2024-11-09 05:01:42,637 INFO L87 Difference]: Start difference. First operand 126 states and 142 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:01:43,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:43,275 INFO L93 Difference]: Finished difference Result 304 states and 346 transitions. [2024-11-09 05:01:43,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:01:43,276 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2024-11-09 05:01:43,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:43,278 INFO L225 Difference]: With dead ends: 304 [2024-11-09 05:01:43,278 INFO L226 Difference]: Without dead ends: 216 [2024-11-09 05:01:43,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 147 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=240, Invalid=1092, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 05:01:43,283 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 64 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:43,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 207 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:01:43,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-09 05:01:43,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 126. [2024-11-09 05:01:43,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 113 states have (on average 1.1061946902654867) internal successors, (125), 115 states have internal predecessors, (125), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 05:01:43,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 138 transitions. [2024-11-09 05:01:43,305 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 138 transitions. Word has length 58 [2024-11-09 05:01:43,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:43,306 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 138 transitions. [2024-11-09 05:01:43,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:01:43,306 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 138 transitions. [2024-11-09 05:01:43,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 05:01:43,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:43,309 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:43,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 05:01:43,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:43,533 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:43,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:43,534 INFO L85 PathProgramCache]: Analyzing trace with hash 98117490, now seen corresponding path program 1 times [2024-11-09 05:01:43,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:43,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868878154] [2024-11-09 05:01:43,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:43,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:43,860 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 3 proven. 95 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:01:43,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:43,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868878154] [2024-11-09 05:01:43,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868878154] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:01:43,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096773679] [2024-11-09 05:01:43,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:43,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:43,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:01:43,864 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:01:43,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 05:01:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:43,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:01:43,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:01:44,165 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 21 proven. 87 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:01:44,165 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:01:44,660 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 3 proven. 95 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:01:44,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096773679] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:01:44,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1244742635] [2024-11-09 05:01:44,664 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2024-11-09 05:01:44,664 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:01:44,665 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:01:44,665 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:01:44,666 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:01:45,342 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 11 for LOIs [2024-11-09 05:01:45,530 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:01:48,668 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9348#(and (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (or (and (exists ((|v_ULTIMATE.start_mulflt_~mb~1#1_55| Int)) (and (<= (mod |v_ULTIMATE.start_mulflt_~mb~1#1_55| 4294967296) (mod |ULTIMATE.start_mulflt_~mb~1#1| 4294967296)) (not (= (mod |v_ULTIMATE.start_mulflt_~mb~1#1_55| 4294967296) 16777216)) (<= (mod |ULTIMATE.start_mulflt_~mb~1#1| 4294967296) (+ (mod |v_ULTIMATE.start_mulflt_~mb~1#1_55| 4294967296) 16777216)) (not (= (mod |v_ULTIMATE.start_mulflt_~mb~1#1_55| 4294967296) 0)))) (<= 16777216 (mod |ULTIMATE.start_mulflt_~mb~1#1| 4294967296))) (and (= |ULTIMATE.start_mulflt_~mb~1#1| 16777216) (or (exists ((|v_ULTIMATE.start_mulflt_~mb~1#1_55| Int)) (= (mod |v_ULTIMATE.start_mulflt_~mb~1#1_55| 4294967296) 16777216)) (exists ((|v_ULTIMATE.start_mulflt_~mb~1#1_55| Int)) (= (mod |v_ULTIMATE.start_mulflt_~mb~1#1_55| 4294967296) 0))))) (exists ((|v_ULTIMATE.start_mulflt_~b#1_42| Int) (|v_ULTIMATE.start_mulflt_~ea~1#1_81| Int) (|v_ULTIMATE.start_mulflt_~ea~1#1_82| Int)) (and (<= |v_ULTIMATE.start_mulflt_~ea~1#1_82| 2147483647) (<= 2147483624 |v_ULTIMATE.start_mulflt_~ea~1#1_82|) (= (+ 128 |v_ULTIMATE.start_mulflt_~ea~1#1_82|) (+ (div (mod |v_ULTIMATE.start_mulflt_~b#1_42| 4294967296) 16777216) |v_ULTIMATE.start_mulflt_~ea~1#1_81|)))) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= |ULTIMATE.start_main_~ea~2#1| 127))' at error location [2024-11-09 05:01:48,668 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:01:48,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:01:48,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2024-11-09 05:01:48,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967257096] [2024-11-09 05:01:48,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:01:48,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 05:01:48,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:48,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 05:01:48,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=431, Invalid=1461, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 05:01:48,673 INFO L87 Difference]: Start difference. First operand 126 states and 138 transitions. Second operand has 26 states, 26 states have (on average 5.576923076923077) internal successors, (145), 26 states have internal predecessors, (145), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:01:49,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:49,036 INFO L93 Difference]: Finished difference Result 510 states and 578 transitions. [2024-11-09 05:01:49,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 05:01:49,038 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.576923076923077) internal successors, (145), 26 states have internal predecessors, (145), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2024-11-09 05:01:49,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:49,040 INFO L225 Difference]: With dead ends: 510 [2024-11-09 05:01:49,041 INFO L226 Difference]: Without dead ends: 428 [2024-11-09 05:01:49,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 195 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=460, Invalid=1520, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 05:01:49,043 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 191 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:49,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 148 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:01:49,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-09 05:01:49,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 166. [2024-11-09 05:01:49,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 153 states have (on average 1.130718954248366) internal successors, (173), 155 states have internal predecessors, (173), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-09 05:01:49,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 186 transitions. [2024-11-09 05:01:49,068 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 186 transitions. Word has length 77 [2024-11-09 05:01:49,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:49,069 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 186 transitions. [2024-11-09 05:01:49,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.576923076923077) internal successors, (145), 26 states have internal predecessors, (145), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:01:49,069 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 186 transitions. [2024-11-09 05:01:49,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 05:01:49,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:49,071 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:49,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 05:01:49,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:49,272 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-09 05:01:49,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:49,272 INFO L85 PathProgramCache]: Analyzing trace with hash 611084975, now seen corresponding path program 2 times [2024-11-09 05:01:49,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:49,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734769386] [2024-11-09 05:01:49,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:49,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:49,855 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-09 05:01:49,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:49,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734769386] [2024-11-09 05:01:49,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734769386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:49,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:49,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:01:49,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353145437] [2024-11-09 05:01:49,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:49,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:01:49,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:49,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:01:49,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:01:49,858 INFO L87 Difference]: Start difference. First operand 166 states and 186 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:01:50,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:50,005 INFO L93 Difference]: Finished difference Result 166 states and 186 transitions. [2024-11-09 05:01:50,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:01:50,006 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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 78 [2024-11-09 05:01:50,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:50,006 INFO L225 Difference]: With dead ends: 166 [2024-11-09 05:01:50,007 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 05:01:50,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:01:50,008 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 10 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:50,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 170 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:01:50,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 05:01:50,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 05:01:50,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:01:50,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 05:01:50,009 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2024-11-09 05:01:50,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:50,009 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 05:01:50,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:01:50,011 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 05:01:50,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 05:01:50,014 INFO L782 garLoopResultBuilder]: Registering result SAFE for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-11-09 05:01:50,015 INFO L782 garLoopResultBuilder]: Registering result SAFE for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-09 05:01:50,015 INFO L782 garLoopResultBuilder]: Registering result SAFE for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-09 05:01:50,016 INFO L782 garLoopResultBuilder]: Registering result SAFE for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-09 05:01:50,016 INFO L782 garLoopResultBuilder]: Registering result SAFE for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-09 05:01:50,016 INFO L782 garLoopResultBuilder]: Registering result SAFE for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-09 05:01:50,016 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-09 05:01:50,016 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-09 05:01:50,017 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2024-11-09 05:01:50,017 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2024-11-09 05:01:50,017 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-11-09 05:01:50,017 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-11-09 05:01:50,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-09 05:01:50,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-11-09 05:01:50,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-09 05:01:50,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-09 05:01:50,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-09 05:01:50,019 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-09 05:01:50,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 05:01:50,023 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:50,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 05:02:02,535 WARN L286 SmtUtils]: Spent 12.50s on a formula simplification. DAG size of input: 133 DAG size of output: 209 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-09 05:02:13,653 WARN L286 SmtUtils]: Spent 11.12s on a formula simplification. DAG size of input: 133 DAG size of output: 209 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-09 05:02:25,350 WARN L286 SmtUtils]: Spent 11.68s on a formula simplification. DAG size of input: 133 DAG size of output: 209 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-09 05:02:34,738 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:02:34,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:02:34 BoogieIcfgContainer [2024-11-09 05:02:34,764 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:02:34,765 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:02:34,765 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:02:34,765 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:02:34,766 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:01:10" (3/4) ... [2024-11-09 05:02:34,768 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 05:02:34,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure base2flt [2024-11-09 05:02:34,772 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 05:02:34,780 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2024-11-09 05:02:34,781 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-09 05:02:34,782 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 05:02:34,782 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 05:02:34,811 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\old(e) <= 127) && ((0 < \old(m)) || (\old(e) != 0))) && (0 <= ((long long) 128 + \old(e)))) && ((((0 <= ((long long) 128 + e)) && (((long long) e + 1) <= 0)) || (\old(e) != 0)) || (((m == \old(m)) && (m <= 16777215)) && (e == 0)))) && (e <= 127)) && ((m < 16777216) || (\old(m) != 1))) [2024-11-09 05:02:34,812 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0 < \old(m)) || (\old(e) != 0)) && (0 <= ((long long) 128 + \old(e)))) && (\old(e) <= e)) && (e <= 127)) && (\old(m) != 1)) [2024-11-09 05:02:34,839 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0 < \old(m)) || (\old(e) != 0)) && (0 <= ((long long) 128 + \old(e)))) && (\old(e) <= e)) && (e <= 127)) && (\old(m) != 1)) [2024-11-09 05:02:34,839 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\old(e) <= 127) && ((0 < \old(m)) || (\old(e) != 0))) && (0 <= ((long long) 128 + \old(e)))) && ((((0 <= ((long long) 128 + e)) && (((long long) e + 1) <= 0)) || (\old(e) != 0)) || (((m == \old(m)) && (m <= 16777215)) && (e == 0)))) && (e <= 127)) && ((m < 16777216) || (\old(m) != 1))) [2024-11-09 05:02:34,887 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:02:34,887 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 05:02:34,888 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:02:34,889 INFO L158 Benchmark]: Toolchain (without parser) took 85948.00ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 107.0MB in the beginning and 237.3MB in the end (delta: -130.3MB). Peak memory consumption was 90.4MB. Max. memory is 16.1GB. [2024-11-09 05:02:34,890 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 107.0MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:02:34,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 576.30ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 91.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 05:02:34,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.19ms. Allocated memory is still 142.6MB. Free memory was 91.4MB in the beginning and 89.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:02:34,891 INFO L158 Benchmark]: Boogie Preprocessor took 58.71ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 87.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:02:34,891 INFO L158 Benchmark]: RCFGBuilder took 1146.05ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 85.3MB in the end (delta: 2.3MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2024-11-09 05:02:34,892 INFO L158 Benchmark]: TraceAbstraction took 83956.81ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 84.7MB in the beginning and 244.7MB in the end (delta: -160.0MB). Peak memory consumption was 190.0MB. Max. memory is 16.1GB. [2024-11-09 05:02:34,892 INFO L158 Benchmark]: Witness Printer took 122.76ms. Allocated memory is still 360.7MB. Free memory was 244.7MB in the beginning and 237.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 05:02:34,896 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 107.0MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 576.30ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 91.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.19ms. Allocated memory is still 142.6MB. Free memory was 91.4MB in the beginning and 89.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.71ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 87.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1146.05ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 85.3MB in the end (delta: 2.3MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * TraceAbstraction took 83956.81ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 84.7MB in the beginning and 244.7MB in the end (delta: -160.0MB). Peak memory consumption was 190.0MB. Max. memory is 16.1GB. * Witness Printer took 122.76ms. Allocated memory is still 360.7MB. Free memory was 244.7MB in the beginning and 237.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 77]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 77]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 172]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 172]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 175]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 175]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 177]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 177]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 178]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 178]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 201]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 201]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 214]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 214]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 71 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 39.1s, OverallIterations: 24, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 948 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 934 mSDsluCounter, 4245 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3138 mSDsCounter, 105 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2376 IncrementalHoareTripleChecker+Invalid, 2481 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 105 mSolverCounterUnsat, 1107 mSDtfsCounter, 2376 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1165 GetRequests, 886 SyntacticMatches, 10 SemanticMatches, 269 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2901 ImplicationChecksByTransitivity, 18.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=23, InterpolantAutomatonStates: 173, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 24 MinimizatonAttempts, 707 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 8.7s InterpolantComputationTime, 1336 NumberOfCodeBlocks, 1336 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 1614 ConstructedInterpolants, 0 QuantifiedInterpolants, 4157 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1353 ConjunctsInSsa, 123 ConjunctsInUnsatCore, 40 InterpolantComputations, 20 PerfectInterpolantSequences, 840/1266 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((((((\old(e) <= 127) && ((0 < \old(m)) || (\old(e) != 0))) && (0 <= ((long long) 128 + \old(e)))) && ((((0 <= ((long long) 128 + e)) && (((long long) e + 1) <= 0)) || (\old(e) != 0)) || (((m == \old(m)) && (m <= 16777215)) && (e == 0)))) && (e <= 127)) && ((m < 16777216) || (\old(m) != 1))) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: ((((((0 < \old(m)) || (\old(e) != 0)) && (0 <= ((long long) 128 + \old(e)))) && (\old(e) <= e)) && (e <= 127)) && (\old(m) != 1)) - ProcedureContractResult [Line: 24]: Procedure Contract for base2flt Derived contract for procedure base2flt. Requires: ((e <= 127) && (0 <= ((long long) 128 + e))) Ensures: (((e <= 127) && (0 <= ((long long) 128 + e))) && (((\result == 0) || (0 < m)) || (e != 0))) RESULT: Ultimate proved your program to be correct! [2024-11-09 05:02:34,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c211e002-d36c-47c5-9f0e-3360401b10ca/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE