./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --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 2e6e06de31959e386aafc2fb45c848364ae9fea32df4ba40928c607f134f313f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:41:16,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:41:16,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:41:16,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:41:16,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:41:16,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:41:16,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:41:16,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:41:16,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:41:16,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:41:16,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:41:16,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:41:16,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:41:16,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:41:16,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:41:16,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:41:16,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:41:16,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:41:16,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:41:16,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:41:16,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:41:16,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:41:16,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:41:16,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:41:16,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:41:16,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:41:16,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:41:16,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:41:16,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:41:16,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:41:16,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:41:16,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:41:16,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:41:16,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:41:16,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:41:16,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:41:16,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:41:16,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:41:16,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:41:16,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:41:16,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:41:16,436 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 22:41:16,475 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:41:16,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:41:16,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:41:16,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:41:16,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:41:16,478 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:41:16,478 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:41:16,478 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:41:16,478 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:41:16,479 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:41:16,480 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:41:16,480 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:41:16,480 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:41:16,480 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:41:16,480 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:41:16,481 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:41:16,481 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:41:16,481 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:41:16,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:41:16,482 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:41:16,482 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:41:16,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:41:16,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:41:16,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:41:16,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:41:16,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:41:16,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:41:16,484 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:41:16,485 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:41:16,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:41:16,485 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:41:16,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:41:16,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:41:16,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:41:16,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:41:16,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:41:16,487 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:41:16,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:41:16,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:41:16,488 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:41:16,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:41:16,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:41:16,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:41:16,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e6e06de31959e386aafc2fb45c848364ae9fea32df4ba40928c607f134f313f [2022-11-25 22:41:16,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:41:16,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:41:16,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:41:16,816 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:41:16,817 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:41:16,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2022-11-25 22:41:19,977 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:41:20,226 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:41:20,227 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2022-11-25 22:41:20,237 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/data/d32b5d5b9/236db536f3ea4e5f950cadf3b2ecab25/FLAGd496f2a27 [2022-11-25 22:41:20,255 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/data/d32b5d5b9/236db536f3ea4e5f950cadf3b2ecab25 [2022-11-25 22:41:20,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:41:20,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:41:20,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:41:20,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:41:20,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:41:20,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:41:20" (1/1) ... [2022-11-25 22:41:20,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33af32c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:20, skipping insertion in model container [2022-11-25 22:41:20,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:41:20" (1/1) ... [2022-11-25 22:41:20,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:41:20,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:41:20,455 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[730,743] [2022-11-25 22:41:20,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:41:20,538 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:41:20,550 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[730,743] [2022-11-25 22:41:20,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:41:20,605 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:41:20,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:20 WrapperNode [2022-11-25 22:41:20,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:41:20,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:41:20,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:41:20,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:41:20,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:20" (1/1) ... [2022-11-25 22:41:20,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:20" (1/1) ... [2022-11-25 22:41:20,653 INFO L138 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 211 [2022-11-25 22:41:20,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:41:20,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:41:20,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:41:20,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:41:20,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:20" (1/1) ... [2022-11-25 22:41:20,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:20" (1/1) ... [2022-11-25 22:41:20,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:20" (1/1) ... [2022-11-25 22:41:20,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:20" (1/1) ... [2022-11-25 22:41:20,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:20" (1/1) ... [2022-11-25 22:41:20,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:20" (1/1) ... [2022-11-25 22:41:20,711 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:20" (1/1) ... [2022-11-25 22:41:20,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:20" (1/1) ... [2022-11-25 22:41:20,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:41:20,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:41:20,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:41:20,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:41:20,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:20" (1/1) ... [2022-11-25 22:41:20,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:41:20,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:41:20,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:41:20,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:41:20,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:41:20,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:41:20,800 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-25 22:41:20,800 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-25 22:41:20,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:41:20,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:41:20,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:41:20,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:41:20,885 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:41:20,887 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:41:21,469 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:41:21,733 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:41:21,733 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 22:41:21,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:41:21 BoogieIcfgContainer [2022-11-25 22:41:21,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:41:21,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:41:21,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:41:21,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:41:21,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:41:20" (1/3) ... [2022-11-25 22:41:21,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691963a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:41:21, skipping insertion in model container [2022-11-25 22:41:21,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:20" (2/3) ... [2022-11-25 22:41:21,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691963a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:41:21, skipping insertion in model container [2022-11-25 22:41:21,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:41:21" (3/3) ... [2022-11-25 22:41:21,748 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2022-11-25 22:41:21,764 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:41:21,764 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-25 22:41:21,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:41:21,815 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6768a34b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:41:21,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-25 22:41:21,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 46 states have (on average 1.6956521739130435) internal successors, (78), 64 states have internal predecessors, (78), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-25 22:41:21,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:41:21,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:21,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:21,829 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:21,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:21,834 INFO L85 PathProgramCache]: Analyzing trace with hash 982073087, now seen corresponding path program 1 times [2022-11-25 22:41:21,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:21,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715871206] [2022-11-25 22:41:21,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:21,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:22,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:41:22,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:22,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715871206] [2022-11-25 22:41:22,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715871206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:22,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:22,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:41:22,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648623122] [2022-11-25 22:41:22,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:22,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:41:22,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:22,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:41:22,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:41:22,073 INFO L87 Difference]: Start difference. First operand has 74 states, 46 states have (on average 1.6956521739130435) internal successors, (78), 64 states have internal predecessors, (78), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 3.5) 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) [2022-11-25 22:41:22,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:22,168 INFO L93 Difference]: Finished difference Result 144 states and 192 transitions. [2022-11-25 22:41:22,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:41:22,172 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 [2022-11-25 22:41:22,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:22,183 INFO L225 Difference]: With dead ends: 144 [2022-11-25 22:41:22,183 INFO L226 Difference]: Without dead ends: 60 [2022-11-25 22:41:22,194 INFO L412 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 [2022-11-25 22:41:22,202 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:22,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:41:22,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-25 22:41:22,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-25 22:41:22,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.5263157894736843) internal successors, (58), 51 states have internal predecessors, (58), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 22:41:22,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions. [2022-11-25 22:41:22,263 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 70 transitions. Word has length 8 [2022-11-25 22:41:22,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:22,265 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 70 transitions. [2022-11-25 22:41:22,265 INFO L496 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) [2022-11-25 22:41:22,266 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2022-11-25 22:41:22,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:41:22,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:22,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:22,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:41:22,269 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:22,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:22,271 INFO L85 PathProgramCache]: Analyzing trace with hash 980795708, now seen corresponding path program 1 times [2022-11-25 22:41:22,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:22,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374940290] [2022-11-25 22:41:22,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:22,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:22,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:41:22,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:22,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374940290] [2022-11-25 22:41:22,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374940290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:22,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:22,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:41:22,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710656474] [2022-11-25 22:41:22,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:22,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:41:22,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:22,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:41:22,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:41:22,404 INFO L87 Difference]: Start difference. First operand 60 states and 70 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) [2022-11-25 22:41:22,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:22,526 INFO L93 Difference]: Finished difference Result 156 states and 190 transitions. [2022-11-25 22:41:22,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:41:22,527 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 [2022-11-25 22:41:22,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:22,530 INFO L225 Difference]: With dead ends: 156 [2022-11-25 22:41:22,530 INFO L226 Difference]: Without dead ends: 98 [2022-11-25 22:41:22,531 INFO L412 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 [2022-11-25 22:41:22,532 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 55 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:22,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 149 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:41:22,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-25 22:41:22,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 90. [2022-11-25 22:41:22,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 67 states have (on average 1.492537313432836) internal successors, (100), 80 states have internal predecessors, (100), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 22:41:22,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 112 transitions. [2022-11-25 22:41:22,546 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 112 transitions. Word has length 8 [2022-11-25 22:41:22,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:22,547 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 112 transitions. [2022-11-25 22:41:22,547 INFO L496 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) [2022-11-25 22:41:22,547 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 112 transitions. [2022-11-25 22:41:22,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 22:41:22,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:22,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:22,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:41:22,549 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:22,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:22,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1693070943, now seen corresponding path program 1 times [2022-11-25 22:41:22,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:22,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402449092] [2022-11-25 22:41:22,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:22,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:22,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:41:22,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:22,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402449092] [2022-11-25 22:41:22,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402449092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:22,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:22,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:41:22,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273543327] [2022-11-25 22:41:22,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:22,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:41:22,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:22,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:41:22,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:41:22,651 INFO L87 Difference]: Start difference. First operand 90 states and 112 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) [2022-11-25 22:41:22,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:22,853 INFO L93 Difference]: Finished difference Result 169 states and 202 transitions. [2022-11-25 22:41:22,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:41:22,854 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 [2022-11-25 22:41:22,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:22,863 INFO L225 Difference]: With dead ends: 169 [2022-11-25 22:41:22,864 INFO L226 Difference]: Without dead ends: 109 [2022-11-25 22:41:22,866 INFO L412 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 [2022-11-25 22:41:22,869 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 92 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:22,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 161 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:41:22,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-25 22:41:22,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 96. [2022-11-25 22:41:22,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 73 states have (on average 1.452054794520548) internal successors, (106), 86 states have internal predecessors, (106), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 22:41:22,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 118 transitions. [2022-11-25 22:41:22,896 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 118 transitions. Word has length 12 [2022-11-25 22:41:22,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:22,897 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 118 transitions. [2022-11-25 22:41:22,897 INFO L496 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) [2022-11-25 22:41:22,898 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 118 transitions. [2022-11-25 22:41:22,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 22:41:22,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:22,900 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:22,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:41:22,900 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:22,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:22,902 INFO L85 PathProgramCache]: Analyzing trace with hash -2052186217, now seen corresponding path program 1 times [2022-11-25 22:41:22,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:22,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091107174] [2022-11-25 22:41:22,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:22,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:22,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:41:22,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:22,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091107174] [2022-11-25 22:41:22,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091107174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:22,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:22,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:41:22,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866015727] [2022-11-25 22:41:22,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:22,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:41:22,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:22,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:41:22,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:41:22,972 INFO L87 Difference]: Start difference. First operand 96 states and 118 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:41:23,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:23,025 INFO L93 Difference]: Finished difference Result 100 states and 123 transitions. [2022-11-25 22:41:23,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:41:23,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-25 22:41:23,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:23,027 INFO L225 Difference]: With dead ends: 100 [2022-11-25 22:41:23,027 INFO L226 Difference]: Without dead ends: 99 [2022-11-25 22:41:23,028 INFO L412 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 [2022-11-25 22:41:23,029 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 3 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:23,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 106 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:41:23,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-25 22:41:23,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 94. [2022-11-25 22:41:23,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.4305555555555556) internal successors, (103), 84 states have internal predecessors, (103), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 22:41:23,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 115 transitions. [2022-11-25 22:41:23,042 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 115 transitions. Word has length 14 [2022-11-25 22:41:23,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:23,042 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 115 transitions. [2022-11-25 22:41:23,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:41:23,043 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 115 transitions. [2022-11-25 22:41:23,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 22:41:23,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:23,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:23,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:41:23,045 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:23,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:23,045 INFO L85 PathProgramCache]: Analyzing trace with hash -945591569, now seen corresponding path program 1 times [2022-11-25 22:41:23,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:23,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208294925] [2022-11-25 22:41:23,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:23,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:23,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:41:23,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:23,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208294925] [2022-11-25 22:41:23,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208294925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:23,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:23,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:41:23,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173299388] [2022-11-25 22:41:23,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:23,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:41:23,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:23,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:41:23,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:41:23,189 INFO L87 Difference]: Start difference. First operand 94 states and 115 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) [2022-11-25 22:41:23,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:23,323 INFO L93 Difference]: Finished difference Result 108 states and 126 transitions. [2022-11-25 22:41:23,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:41:23,327 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 [2022-11-25 22:41:23,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:23,333 INFO L225 Difference]: With dead ends: 108 [2022-11-25 22:41:23,333 INFO L226 Difference]: Without dead ends: 106 [2022-11-25 22:41:23,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:41:23,335 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 60 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:23,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 199 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:41:23,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-25 22:41:23,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 94. [2022-11-25 22:41:23,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.4166666666666667) internal successors, (102), 84 states have internal predecessors, (102), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 22:41:23,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 114 transitions. [2022-11-25 22:41:23,346 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 114 transitions. Word has length 13 [2022-11-25 22:41:23,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:23,347 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 114 transitions. [2022-11-25 22:41:23,347 INFO L496 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) [2022-11-25 22:41:23,347 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 114 transitions. [2022-11-25 22:41:23,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 22:41:23,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:23,348 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:23,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:41:23,349 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:23,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:23,350 INFO L85 PathProgramCache]: Analyzing trace with hash 835364126, now seen corresponding path program 1 times [2022-11-25 22:41:23,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:23,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534962779] [2022-11-25 22:41:23,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:23,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:23,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:41:23,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:23,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534962779] [2022-11-25 22:41:23,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534962779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:23,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:23,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:41:23,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887278782] [2022-11-25 22:41:23,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:23,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:41:23,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:23,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:41:23,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:41:23,407 INFO L87 Difference]: Start difference. First operand 94 states and 114 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:41:23,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:23,518 INFO L93 Difference]: Finished difference Result 132 states and 159 transitions. [2022-11-25 22:41:23,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:41:23,518 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-25 22:41:23,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:23,519 INFO L225 Difference]: With dead ends: 132 [2022-11-25 22:41:23,520 INFO L226 Difference]: Without dead ends: 130 [2022-11-25 22:41:23,520 INFO L412 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 [2022-11-25 22:41:23,521 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 80 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:23,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 155 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:41:23,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-25 22:41:23,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 114. [2022-11-25 22:41:23,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 91 states have (on average 1.4395604395604396) internal successors, (131), 103 states have internal predecessors, (131), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 22:41:23,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 143 transitions. [2022-11-25 22:41:23,534 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 143 transitions. Word has length 15 [2022-11-25 22:41:23,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:23,535 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 143 transitions. [2022-11-25 22:41:23,535 INFO L496 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:41:23,535 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2022-11-25 22:41:23,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 22:41:23,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:23,536 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:23,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 22:41:23,537 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:23,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:23,537 INFO L85 PathProgramCache]: Analyzing trace with hash 806736770, now seen corresponding path program 1 times [2022-11-25 22:41:23,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:23,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078457565] [2022-11-25 22:41:23,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:23,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:23,585 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:41:23,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:23,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078457565] [2022-11-25 22:41:23,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078457565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:23,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:23,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:41:23,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178634864] [2022-11-25 22:41:23,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:23,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:41:23,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:23,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:41:23,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:41:23,589 INFO L87 Difference]: Start difference. First operand 114 states and 143 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:41:23,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:23,733 INFO L93 Difference]: Finished difference Result 130 states and 158 transitions. [2022-11-25 22:41:23,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:41:23,733 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-25 22:41:23,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:23,735 INFO L225 Difference]: With dead ends: 130 [2022-11-25 22:41:23,735 INFO L226 Difference]: Without dead ends: 127 [2022-11-25 22:41:23,736 INFO L412 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 [2022-11-25 22:41:23,737 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 78 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:23,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 156 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:41:23,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-25 22:41:23,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 116. [2022-11-25 22:41:23,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 105 states have internal predecessors, (131), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 22:41:23,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 143 transitions. [2022-11-25 22:41:23,762 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 143 transitions. Word has length 15 [2022-11-25 22:41:23,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:23,762 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 143 transitions. [2022-11-25 22:41:23,763 INFO L496 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:41:23,763 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 143 transitions. [2022-11-25 22:41:23,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 22:41:23,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:23,764 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:23,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 22:41:23,764 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:23,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:23,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1421550682, now seen corresponding path program 1 times [2022-11-25 22:41:23,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:23,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730103366] [2022-11-25 22:41:23,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:23,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:23,829 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:41:23,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:23,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730103366] [2022-11-25 22:41:23,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730103366] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:41:23,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664650943] [2022-11-25 22:41:23,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:23,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:41:23,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:41:23,834 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:41:23,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:41:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:23,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:41:23,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:41:24,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:41:24,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:41:24,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664650943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:24,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:41:24,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-25 22:41:24,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132969197] [2022-11-25 22:41:24,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:24,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:41:24,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:24,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:41:24,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:41:24,018 INFO L87 Difference]: Start difference. First operand 116 states and 143 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) [2022-11-25 22:41:24,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:24,088 INFO L93 Difference]: Finished difference Result 136 states and 167 transitions. [2022-11-25 22:41:24,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:41:24,089 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 [2022-11-25 22:41:24,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:24,090 INFO L225 Difference]: With dead ends: 136 [2022-11-25 22:41:24,090 INFO L226 Difference]: Without dead ends: 135 [2022-11-25 22:41:24,091 INFO L412 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 [2022-11-25 22:41:24,092 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 6 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:24,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 160 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:41:24,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-25 22:41:24,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 113. [2022-11-25 22:41:24,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 91 states have (on average 1.3956043956043955) internal successors, (127), 102 states have internal predecessors, (127), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 22:41:24,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 139 transitions. [2022-11-25 22:41:24,115 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 139 transitions. Word has length 15 [2022-11-25 22:41:24,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:24,116 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 139 transitions. [2022-11-25 22:41:24,116 INFO L496 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) [2022-11-25 22:41:24,116 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 139 transitions. [2022-11-25 22:41:24,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 22:41:24,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:24,120 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:24,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:41:24,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:41:24,327 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:24,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:24,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1141800324, now seen corresponding path program 1 times [2022-11-25 22:41:24,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:24,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977315703] [2022-11-25 22:41:24,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:24,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:24,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:41:24,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:24,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977315703] [2022-11-25 22:41:24,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977315703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:24,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:24,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:41:24,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782542006] [2022-11-25 22:41:24,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:24,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:41:24,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:24,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:41:24,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:41:24,414 INFO L87 Difference]: Start difference. First operand 113 states and 139 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:41:24,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:24,474 INFO L93 Difference]: Finished difference Result 137 states and 166 transitions. [2022-11-25 22:41:24,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:41:24,474 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-25 22:41:24,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:24,476 INFO L225 Difference]: With dead ends: 137 [2022-11-25 22:41:24,476 INFO L226 Difference]: Without dead ends: 136 [2022-11-25 22:41:24,476 INFO L412 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 [2022-11-25 22:41:24,477 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 10 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:24,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 107 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:41:24,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-25 22:41:24,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 111. [2022-11-25 22:41:24,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 89 states have (on average 1.3820224719101124) internal successors, (123), 100 states have internal predecessors, (123), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 22:41:24,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 135 transitions. [2022-11-25 22:41:24,487 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 135 transitions. Word has length 18 [2022-11-25 22:41:24,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:24,487 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 135 transitions. [2022-11-25 22:41:24,487 INFO L496 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:41:24,487 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 135 transitions. [2022-11-25 22:41:24,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 22:41:24,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:24,488 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:24,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 22:41:24,489 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:24,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:24,489 INFO L85 PathProgramCache]: Analyzing trace with hash -467499250, now seen corresponding path program 1 times [2022-11-25 22:41:24,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:24,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507697821] [2022-11-25 22:41:24,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:24,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:24,843 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 22:41:24,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:24,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507697821] [2022-11-25 22:41:24,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507697821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:24,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:24,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 22:41:24,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601856545] [2022-11-25 22:41:24,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:24,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:41:24,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:24,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:41:24,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:41:24,846 INFO L87 Difference]: Start difference. First operand 111 states and 135 transitions. Second operand has 8 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 22:41:25,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:25,020 INFO L93 Difference]: Finished difference Result 175 states and 207 transitions. [2022-11-25 22:41:25,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:41:25,021 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2022-11-25 22:41:25,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:25,025 INFO L225 Difference]: With dead ends: 175 [2022-11-25 22:41:25,025 INFO L226 Difference]: Without dead ends: 174 [2022-11-25 22:41:25,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:41:25,026 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 72 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:25,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 379 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:41:25,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-25 22:41:25,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 120. [2022-11-25 22:41:25,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 95 states have (on average 1.3578947368421053) internal successors, (129), 107 states have internal predecessors, (129), 7 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2022-11-25 22:41:25,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 146 transitions. [2022-11-25 22:41:25,040 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 146 transitions. Word has length 21 [2022-11-25 22:41:25,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:25,042 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 146 transitions. [2022-11-25 22:41:25,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 22:41:25,042 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 146 transitions. [2022-11-25 22:41:25,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 22:41:25,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:25,044 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:25,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 22:41:25,044 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:25,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:25,045 INFO L85 PathProgramCache]: Analyzing trace with hash -738880415, now seen corresponding path program 1 times [2022-11-25 22:41:25,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:25,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766070596] [2022-11-25 22:41:25,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:25,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:25,093 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 22:41:25,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:25,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766070596] [2022-11-25 22:41:25,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766070596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:25,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:25,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:41:25,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202944054] [2022-11-25 22:41:25,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:25,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:41:25,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:25,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:41:25,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:41:25,097 INFO L87 Difference]: Start difference. First operand 120 states and 146 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) [2022-11-25 22:41:25,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:25,204 INFO L93 Difference]: Finished difference Result 134 states and 164 transitions. [2022-11-25 22:41:25,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:41:25,205 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 [2022-11-25 22:41:25,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:25,206 INFO L225 Difference]: With dead ends: 134 [2022-11-25 22:41:25,207 INFO L226 Difference]: Without dead ends: 132 [2022-11-25 22:41:25,207 INFO L412 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 [2022-11-25 22:41:25,209 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 74 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:25,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 151 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:41:25,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-25 22:41:25,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 116. [2022-11-25 22:41:25,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 93 states have (on average 1.3333333333333333) internal successors, (124), 103 states have internal predecessors, (124), 7 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2022-11-25 22:41:25,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 141 transitions. [2022-11-25 22:41:25,227 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 141 transitions. Word has length 21 [2022-11-25 22:41:25,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:25,228 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 141 transitions. [2022-11-25 22:41:25,228 INFO L496 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) [2022-11-25 22:41:25,228 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 141 transitions. [2022-11-25 22:41:25,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 22:41:25,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:25,231 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:25,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 22:41:25,231 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:25,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:25,232 INFO L85 PathProgramCache]: Analyzing trace with hash -767507771, now seen corresponding path program 1 times [2022-11-25 22:41:25,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:25,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889334343] [2022-11-25 22:41:25,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:25,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:25,290 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 22:41:25,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:25,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889334343] [2022-11-25 22:41:25,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889334343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:25,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:25,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:41:25,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427221525] [2022-11-25 22:41:25,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:25,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:41:25,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:25,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:41:25,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:41:25,293 INFO L87 Difference]: Start difference. First operand 116 states and 141 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) [2022-11-25 22:41:25,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:25,390 INFO L93 Difference]: Finished difference Result 126 states and 153 transitions. [2022-11-25 22:41:25,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:41:25,391 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 [2022-11-25 22:41:25,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:25,392 INFO L225 Difference]: With dead ends: 126 [2022-11-25 22:41:25,392 INFO L226 Difference]: Without dead ends: 124 [2022-11-25 22:41:25,393 INFO L412 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 [2022-11-25 22:41:25,393 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 72 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 151 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 [2022-11-25 22:41:25,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 151 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:41:25,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-25 22:41:25,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 109. [2022-11-25 22:41:25,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.3181818181818181) internal successors, (116), 96 states have internal predecessors, (116), 7 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2022-11-25 22:41:25,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 133 transitions. [2022-11-25 22:41:25,406 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 133 transitions. Word has length 21 [2022-11-25 22:41:25,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:25,406 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 133 transitions. [2022-11-25 22:41:25,406 INFO L496 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) [2022-11-25 22:41:25,406 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 133 transitions. [2022-11-25 22:41:25,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 22:41:25,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:25,407 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:25,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 22:41:25,408 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:25,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:25,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1704801616, now seen corresponding path program 1 times [2022-11-25 22:41:25,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:25,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280020502] [2022-11-25 22:41:25,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:25,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:25,848 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 22:41:25,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:25,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280020502] [2022-11-25 22:41:25,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280020502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:25,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:25,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 22:41:25,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813632818] [2022-11-25 22:41:25,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:25,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:41:25,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:25,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:41:25,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:41:25,851 INFO L87 Difference]: Start difference. First operand 109 states and 133 transitions. Second operand has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 22:41:25,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:25,971 INFO L93 Difference]: Finished difference Result 165 states and 194 transitions. [2022-11-25 22:41:25,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:41:25,971 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2022-11-25 22:41:25,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:25,972 INFO L225 Difference]: With dead ends: 165 [2022-11-25 22:41:25,973 INFO L226 Difference]: Without dead ends: 136 [2022-11-25 22:41:25,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:41:25,974 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 27 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:25,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 348 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:41:25,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-25 22:41:25,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 106. [2022-11-25 22:41:25,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 85 states have (on average 1.3294117647058823) internal successors, (113), 94 states have internal predecessors, (113), 7 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2022-11-25 22:41:25,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 129 transitions. [2022-11-25 22:41:25,986 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 129 transitions. Word has length 23 [2022-11-25 22:41:25,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:25,987 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 129 transitions. [2022-11-25 22:41:25,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 22:41:25,987 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 129 transitions. [2022-11-25 22:41:25,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 22:41:25,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:25,988 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:25,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 22:41:25,988 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:25,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:25,989 INFO L85 PathProgramCache]: Analyzing trace with hash 191860157, now seen corresponding path program 1 times [2022-11-25 22:41:25,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:25,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095053287] [2022-11-25 22:41:25,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:25,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:26,334 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 22:41:26,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:26,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095053287] [2022-11-25 22:41:26,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095053287] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:41:26,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172974331] [2022-11-25 22:41:26,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:26,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:41:26,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:41:26,337 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:41:26,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:41:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:26,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-25 22:41:26,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:41:26,614 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 22:41:26,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:41:26,973 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 22:41:26,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172974331] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:41:26,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1625435076] [2022-11-25 22:41:26,992 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-25 22:41:26,992 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:41:26,996 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:41:27,002 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:41:27,002 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:41:27,856 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 60 for LOIs [2022-11-25 22:41:27,989 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:41:30,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1625435076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:30,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:41:30,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [10, 14, 8] total 35 [2022-11-25 22:41:30,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75025008] [2022-11-25 22:41:30,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:30,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 22:41:30,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:30,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 22:41:30,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1086, Unknown=0, NotChecked=0, Total=1190 [2022-11-25 22:41:30,783 INFO L87 Difference]: Start difference. First operand 106 states and 129 transitions. Second operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 22:41:34,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:34,029 INFO L93 Difference]: Finished difference Result 237 states and 295 transitions. [2022-11-25 22:41:34,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 22:41:34,030 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2022-11-25 22:41:34,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:34,032 INFO L225 Difference]: With dead ends: 237 [2022-11-25 22:41:34,032 INFO L226 Difference]: Without dead ends: 235 [2022-11-25 22:41:34,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 47 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=183, Invalid=1709, Unknown=0, NotChecked=0, Total=1892 [2022-11-25 22:41:34,033 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 164 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:34,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 305 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 22:41:34,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-11-25 22:41:34,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 137. [2022-11-25 22:41:34,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 108 states have (on average 1.3148148148148149) internal successors, (142), 121 states have internal predecessors, (142), 10 states have call successors, (10), 4 states have call predecessors, (10), 11 states have return successors, (25), 11 states have call predecessors, (25), 10 states have call successors, (25) [2022-11-25 22:41:34,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 177 transitions. [2022-11-25 22:41:34,077 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 177 transitions. Word has length 25 [2022-11-25 22:41:34,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:34,079 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 177 transitions. [2022-11-25 22:41:34,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 22:41:34,080 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 177 transitions. [2022-11-25 22:41:34,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 22:41:34,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:34,083 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:34,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:41:34,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 22:41:34,289 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:34,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:34,289 INFO L85 PathProgramCache]: Analyzing trace with hash -421812449, now seen corresponding path program 1 times [2022-11-25 22:41:34,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:34,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496189231] [2022-11-25 22:41:34,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:34,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:34,671 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 22:41:34,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:34,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496189231] [2022-11-25 22:41:34,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496189231] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:41:34,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71203645] [2022-11-25 22:41:34,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:34,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:41:34,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:41:34,674 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:41:34,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:41:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:34,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-25 22:41:34,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:41:34,890 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 22:41:34,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:41:35,206 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 22:41:35,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71203645] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:41:35,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [711302894] [2022-11-25 22:41:35,209 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-25 22:41:35,209 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:41:35,209 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:41:35,209 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:41:35,209 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:41:35,473 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 60 for LOIs [2022-11-25 22:41:35,761 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:41:39,651 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4979#(and (<= |ULTIMATE.start_main_~eb~2#1| 127) (= (select |#length| 3) 12) (not (<= 0 (+ (ite (<= (mod (div |ULTIMATE.start_addflt_~a#1| 16777216) 4294967296) 2147483647) (mod (div |ULTIMATE.start_addflt_~a#1| 16777216) 4294967296) (+ (mod (div |ULTIMATE.start_addflt_~a#1| 16777216) 4294967296) (- 4294967296))) 2147483520))) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (not (= (mod |ULTIMATE.start_addflt_~b#1| 4294967296) 0)) (= (select |#length| 2) 24) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (or (and (= |ULTIMATE.start_main_~sa~0#1| |ULTIMATE.start_main_~tmp~2#1|) (not (< (mod |ULTIMATE.start_main_~a~0#1| 4294967296) (mod |ULTIMATE.start_main_~zero~0#1| 4294967296))) (or (and (< (mod |ULTIMATE.start_main_~zero~0#1| 4294967296) (mod |ULTIMATE.start_main_~a~0#1| 4294967296)) (= |ULTIMATE.start_main_~tmp~2#1| 1)) (and (not (< (mod |ULTIMATE.start_main_~zero~0#1| 4294967296) (mod |ULTIMATE.start_main_~a~0#1| 4294967296))) (= 0 |ULTIMATE.start_main_~tmp~2#1|)))) (and (= (+ |ULTIMATE.start_main_~sa~0#1| 1) 0) (< (mod |ULTIMATE.start_main_~a~0#1| 4294967296) (mod |ULTIMATE.start_main_~zero~0#1| 4294967296)))) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_addflt_#in~a#1|) (= (select |#valid| 1) 1) (or (and (= (+ |ULTIMATE.start_main_~sb~0#1| 1) 0) (< (mod |ULTIMATE.start_main_~b~0#1| 4294967296) (mod |ULTIMATE.start_main_~zero~0#1| 4294967296))) (and (not (< (mod |ULTIMATE.start_main_~b~0#1| 4294967296) (mod |ULTIMATE.start_main_~zero~0#1| 4294967296))) (or (and (< (mod |ULTIMATE.start_main_~zero~0#1| 4294967296) (mod |ULTIMATE.start_main_~b~0#1| 4294967296)) (= 1 |ULTIMATE.start_main_~tmp___0~0#1|)) (and (not (< (mod |ULTIMATE.start_main_~zero~0#1| 4294967296) (mod |ULTIMATE.start_main_~b~0#1| 4294967296))) (= 0 |ULTIMATE.start_main_~tmp___0~0#1|))) (= |ULTIMATE.start_main_~sb~0#1| |ULTIMATE.start_main_~tmp___0~0#1|))) (<= 0 |ULTIMATE.start_addflt_~ma~0#1|) (or (<= |ULTIMATE.start_addflt_~ma~0#1| 16777215) (< |ULTIMATE.start_addflt_~a#1| 0)) (= (select |#valid| 0) 0) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_#in~b#1|) (= (select (select |#memory_int| 1) 0) 48) (<= |ULTIMATE.start_main_~ea~2#1| 127) (= (select (select |#memory_int| 1) 1) 0) (or (and (= |ULTIMATE.start_addflt_~tmp~0#1| |ULTIMATE.start_addflt_~b#1|) (< (mod |ULTIMATE.start_addflt_#in~a#1| 4294967296) (mod |ULTIMATE.start_addflt_#in~b#1| 4294967296)) (= |ULTIMATE.start_addflt_~tmp~0#1| |ULTIMATE.start_addflt_#in~a#1|) (= |ULTIMATE.start_addflt_#in~b#1| |ULTIMATE.start_addflt_~a#1|)) (and (= |ULTIMATE.start_addflt_#in~a#1| |ULTIMATE.start_addflt_~a#1|) (not (< (mod |ULTIMATE.start_addflt_#in~a#1| 4294967296) (mod |ULTIMATE.start_addflt_#in~b#1| 4294967296))) (= |ULTIMATE.start_addflt_#in~b#1| |ULTIMATE.start_addflt_~b#1|))) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 22:41:39,652 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:41:39,652 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:41:39,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 18 [2022-11-25 22:41:39,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667944320] [2022-11-25 22:41:39,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 22:41:39,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-25 22:41:39,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:39,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-25 22:41:39,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=772, Unknown=0, NotChecked=0, Total=870 [2022-11-25 22:41:39,655 INFO L87 Difference]: Start difference. First operand 137 states and 177 transitions. Second operand has 18 states, 14 states have (on average 2.0) internal successors, (28), 13 states have internal predecessors, (28), 5 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (9), 8 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-25 22:41:40,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:40,115 INFO L93 Difference]: Finished difference Result 254 states and 313 transitions. [2022-11-25 22:41:40,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 22:41:40,117 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 2.0) internal successors, (28), 13 states have internal predecessors, (28), 5 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (9), 8 states have call predecessors, (9), 5 states have call successors, (9) Word has length 27 [2022-11-25 22:41:40,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:40,118 INFO L225 Difference]: With dead ends: 254 [2022-11-25 22:41:40,118 INFO L226 Difference]: Without dead ends: 107 [2022-11-25 22:41:40,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 59 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=162, Invalid=1320, Unknown=0, NotChecked=0, Total=1482 [2022-11-25 22:41:40,120 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 55 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:40,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 365 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:41:40,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-25 22:41:40,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 93. [2022-11-25 22:41:40,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 80 states have internal predecessors, (92), 7 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2022-11-25 22:41:40,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 109 transitions. [2022-11-25 22:41:40,137 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 109 transitions. Word has length 27 [2022-11-25 22:41:40,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:40,138 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 109 transitions. [2022-11-25 22:41:40,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 2.0) internal successors, (28), 13 states have internal predecessors, (28), 5 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (9), 8 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-25 22:41:40,138 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 109 transitions. [2022-11-25 22:41:40,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-25 22:41:40,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:40,139 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:40,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:41:40,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-25 22:41:40,345 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:40,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:40,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1376139470, now seen corresponding path program 1 times [2022-11-25 22:41:40,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:40,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739484286] [2022-11-25 22:41:40,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:40,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:40,543 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 22:41:40,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:40,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739484286] [2022-11-25 22:41:40,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739484286] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:41:40,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557182955] [2022-11-25 22:41:40,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:40,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:41:40,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:41:40,547 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:41:40,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:41:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:40,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 22:41:40,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:41:40,748 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 22:41:40,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:41:41,425 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 22:41:41,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557182955] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:41:41,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2035719434] [2022-11-25 22:41:41,427 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2022-11-25 22:41:41,427 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:41:41,428 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:41:41,428 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:41:41,428 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:41:41,636 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 60 for LOIs [2022-11-25 22:41:41,895 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:41:45,625 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5643#(and (<= |ULTIMATE.start_main_~eb~2#1| 127) (= (select |#length| 3) 12) (not (<= 0 (+ (ite (<= (mod (div |ULTIMATE.start_addflt_~a#1| 16777216) 4294967296) 2147483647) (mod (div |ULTIMATE.start_addflt_~a#1| 16777216) 4294967296) (+ (mod (div |ULTIMATE.start_addflt_~a#1| 16777216) 4294967296) (- 4294967296))) 2147483520))) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (not (= (mod |ULTIMATE.start_addflt_~b#1| 4294967296) 0)) (= (select |#length| 2) 24) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (or (and (= |ULTIMATE.start_main_~sa~0#1| |ULTIMATE.start_main_~tmp~2#1|) (not (< (mod |ULTIMATE.start_main_~a~0#1| 4294967296) (mod |ULTIMATE.start_main_~zero~0#1| 4294967296))) (or (and (< (mod |ULTIMATE.start_main_~zero~0#1| 4294967296) (mod |ULTIMATE.start_main_~a~0#1| 4294967296)) (= |ULTIMATE.start_main_~tmp~2#1| 1)) (and (not (< (mod |ULTIMATE.start_main_~zero~0#1| 4294967296) (mod |ULTIMATE.start_main_~a~0#1| 4294967296))) (= 0 |ULTIMATE.start_main_~tmp~2#1|)))) (and (= (+ |ULTIMATE.start_main_~sa~0#1| 1) 0) (< (mod |ULTIMATE.start_main_~a~0#1| 4294967296) (mod |ULTIMATE.start_main_~zero~0#1| 4294967296)))) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_addflt_#in~a#1|) (= (select |#valid| 1) 1) (or (and (= (+ |ULTIMATE.start_main_~sb~0#1| 1) 0) (< (mod |ULTIMATE.start_main_~b~0#1| 4294967296) (mod |ULTIMATE.start_main_~zero~0#1| 4294967296))) (and (not (< (mod |ULTIMATE.start_main_~b~0#1| 4294967296) (mod |ULTIMATE.start_main_~zero~0#1| 4294967296))) (or (and (< (mod |ULTIMATE.start_main_~zero~0#1| 4294967296) (mod |ULTIMATE.start_main_~b~0#1| 4294967296)) (= 1 |ULTIMATE.start_main_~tmp___0~0#1|)) (and (not (< (mod |ULTIMATE.start_main_~zero~0#1| 4294967296) (mod |ULTIMATE.start_main_~b~0#1| 4294967296))) (= 0 |ULTIMATE.start_main_~tmp___0~0#1|))) (= |ULTIMATE.start_main_~sb~0#1| |ULTIMATE.start_main_~tmp___0~0#1|))) (<= 0 |ULTIMATE.start_addflt_~ma~0#1|) (or (<= |ULTIMATE.start_addflt_~ma~0#1| 16777215) (< |ULTIMATE.start_addflt_~a#1| 0)) (= (select |#valid| 0) 0) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_#in~b#1|) (= (select (select |#memory_int| 1) 0) 48) (<= |ULTIMATE.start_main_~ea~2#1| 127) (= (select (select |#memory_int| 1) 1) 0) (or (and (= |ULTIMATE.start_addflt_~tmp~0#1| |ULTIMATE.start_addflt_~b#1|) (< (mod |ULTIMATE.start_addflt_#in~a#1| 4294967296) (mod |ULTIMATE.start_addflt_#in~b#1| 4294967296)) (= |ULTIMATE.start_addflt_~tmp~0#1| |ULTIMATE.start_addflt_#in~a#1|) (= |ULTIMATE.start_addflt_#in~b#1| |ULTIMATE.start_addflt_~a#1|)) (and (= |ULTIMATE.start_addflt_#in~a#1| |ULTIMATE.start_addflt_~a#1|) (not (< (mod |ULTIMATE.start_addflt_#in~a#1| 4294967296) (mod |ULTIMATE.start_addflt_#in~b#1| 4294967296))) (= |ULTIMATE.start_addflt_#in~b#1| |ULTIMATE.start_addflt_~b#1|))) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 22:41:45,625 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:41:45,626 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:41:45,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-25 22:41:45,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485326288] [2022-11-25 22:41:45,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 22:41:45,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 22:41:45,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:45,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 22:41:45,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2022-11-25 22:41:45,628 INFO L87 Difference]: Start difference. First operand 93 states and 109 transitions. Second operand has 13 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-25 22:41:45,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:45,899 INFO L93 Difference]: Finished difference Result 127 states and 150 transitions. [2022-11-25 22:41:45,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:41:45,900 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 31 [2022-11-25 22:41:45,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:45,901 INFO L225 Difference]: With dead ends: 127 [2022-11-25 22:41:45,901 INFO L226 Difference]: Without dead ends: 126 [2022-11-25 22:41:45,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2022-11-25 22:41:45,903 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 92 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:45,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 521 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:41:45,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-25 22:41:45,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 100. [2022-11-25 22:41:45,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 77 states have (on average 1.2597402597402598) internal successors, (97), 85 states have internal predecessors, (97), 8 states have call successors, (8), 4 states have call predecessors, (8), 7 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-25 22:41:45,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 118 transitions. [2022-11-25 22:41:45,921 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 118 transitions. Word has length 31 [2022-11-25 22:41:45,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:45,921 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 118 transitions. [2022-11-25 22:41:45,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-25 22:41:45,922 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 118 transitions. [2022-11-25 22:41:45,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-25 22:41:45,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:45,923 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:45,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:41:46,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:41:46,128 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:46,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:46,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1677032142, now seen corresponding path program 2 times [2022-11-25 22:41:46,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:46,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054242746] [2022-11-25 22:41:46,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:46,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:46,501 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:41:46,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:46,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054242746] [2022-11-25 22:41:46,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054242746] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:41:46,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22848201] [2022-11-25 22:41:46,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:41:46,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:41:46,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:41:46,504 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:41:46,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:41:46,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 22:41:46,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:41:46,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-25 22:41:46,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:41:46,670 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 22:41:46,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:41:46,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22848201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:46,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:41:46,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2022-11-25 22:41:46,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184893730] [2022-11-25 22:41:46,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:46,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:41:46,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:46,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:41:46,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:41:46,673 INFO L87 Difference]: Start difference. First operand 100 states and 118 transitions. Second operand has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 22:41:46,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:46,784 INFO L93 Difference]: Finished difference Result 133 states and 156 transitions. [2022-11-25 22:41:46,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:41:46,785 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-11-25 22:41:46,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:46,786 INFO L225 Difference]: With dead ends: 133 [2022-11-25 22:41:46,786 INFO L226 Difference]: Without dead ends: 132 [2022-11-25 22:41:46,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-25 22:41:46,787 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 23 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:46,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 270 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:41:46,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-25 22:41:46,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 102. [2022-11-25 22:41:46,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 78 states have (on average 1.2564102564102564) internal successors, (98), 87 states have internal predecessors, (98), 8 states have call successors, (8), 4 states have call predecessors, (8), 8 states have return successors, (16), 10 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-25 22:41:46,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2022-11-25 22:41:46,819 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 31 [2022-11-25 22:41:46,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:46,819 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2022-11-25 22:41:46,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 22:41:46,820 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2022-11-25 22:41:46,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 22:41:46,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:46,820 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:46,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:41:47,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 22:41:47,021 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:47,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:47,022 INFO L85 PathProgramCache]: Analyzing trace with hash -379881712, now seen corresponding path program 1 times [2022-11-25 22:41:47,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:47,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366647042] [2022-11-25 22:41:47,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:47,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:41:47,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:41:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:41:47,176 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:41:47,177 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:41:47,178 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-11-25 22:41:47,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-11-25 22:41:47,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-11-25 22:41:47,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-11-25 22:41:47,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2022-11-25 22:41:47,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2022-11-25 22:41:47,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2022-11-25 22:41:47,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2022-11-25 22:41:47,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-11-25 22:41:47,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-11-25 22:41:47,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2022-11-25 22:41:47,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2022-11-25 22:41:47,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-11-25 22:41:47,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-11-25 22:41:47,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-11-25 22:41:47,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-11-25 22:41:47,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 22:41:47,187 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:47,191 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:41:47,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:41:47 BoogieIcfgContainer [2022-11-25 22:41:47,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:41:47,245 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:41:47,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:41:47,246 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:41:47,246 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:41:21" (3/4) ... [2022-11-25 22:41:47,250 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:41:47,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:41:47,251 INFO L158 Benchmark]: Toolchain (without parser) took 26988.34ms. Allocated memory was 184.5MB in the beginning and 388.0MB in the end (delta: 203.4MB). Free memory was 140.3MB in the beginning and 312.0MB in the end (delta: -171.7MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2022-11-25 22:41:47,251 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 134.2MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:41:47,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.57ms. Allocated memory is still 184.5MB. Free memory was 139.9MB in the beginning and 125.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 22:41:47,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.82ms. Allocated memory is still 184.5MB. Free memory was 125.6MB in the beginning and 123.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:41:47,252 INFO L158 Benchmark]: Boogie Preprocessor took 61.27ms. Allocated memory is still 184.5MB. Free memory was 123.1MB in the beginning and 121.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:41:47,253 INFO L158 Benchmark]: RCFGBuilder took 1019.78ms. Allocated memory is still 184.5MB. Free memory was 121.4MB in the beginning and 129.4MB in the end (delta: -7.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-25 22:41:47,254 INFO L158 Benchmark]: TraceAbstraction took 25506.94ms. Allocated memory was 184.5MB in the beginning and 388.0MB in the end (delta: 203.4MB). Free memory was 128.3MB in the beginning and 312.0MB in the end (delta: -183.6MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2022-11-25 22:41:47,254 INFO L158 Benchmark]: Witness Printer took 4.69ms. Allocated memory is still 388.0MB. Free memory is still 312.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:41:47,258 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 134.2MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.57ms. Allocated memory is still 184.5MB. Free memory was 139.9MB in the beginning and 125.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.82ms. Allocated memory is still 184.5MB. Free memory was 125.6MB in the beginning and 123.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.27ms. Allocated memory is still 184.5MB. Free memory was 123.1MB in the beginning and 121.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1019.78ms. Allocated memory is still 184.5MB. Free memory was 121.4MB in the beginning and 129.4MB in the end (delta: -7.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 25506.94ms. Allocated memory was 184.5MB in the beginning and 388.0MB in the end (delta: 203.4MB). Free memory was 128.3MB in the beginning and 312.0MB in the end (delta: -183.6MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Witness Printer took 4.69ms. Allocated memory is still 388.0MB. Free memory is still 312.0MB. There was no memory consumed. 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 - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 76, overapproximation of bitwiseOr at line 110, overapproximation of bitwiseAnd at line 111. Possible FailurePath: [L226] unsigned int a ; [L227] unsigned int ma = __VERIFIER_nondet_uint(); [L228] signed char ea = __VERIFIER_nondet_char(); [L229] unsigned int b ; [L230] unsigned int mb = __VERIFIER_nondet_uint(); [L231] signed char eb = __VERIFIER_nondet_char(); [L232] unsigned int r_add ; [L233] unsigned int zero ; [L234] int sa ; [L235] int sb ; [L236] int tmp ; [L237] int tmp___0 ; [L238] int tmp___1 ; [L239] int tmp___2 ; [L240] int tmp___3 ; [L241] int tmp___4 ; [L242] int tmp___5 ; [L243] int tmp___6 ; [L244] int tmp___7 ; [L245] int tmp___8 ; [L246] int tmp___9 ; [L247] int __retres23 ; VAL [ea=127, eb=-128] [L251] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L80] return (__retres4); [L251] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=127, eb=-128] [L251] zero = base2flt(0, 0) [L252] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=127, \old(m)=33554432] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L29] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L57] COND TRUE 1 VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L59] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L64] COND TRUE e >= 127 [L65] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=33554432, __retres4=4294967295, e=127, m=33554432] [L80] return (__retres4); [L252] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=4294967295, ea=127, eb=-128, ma=33554432, zero=0] [L252] a = base2flt(ma, ea) [L253] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=-128, \old(m)=33554430] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=-128, \old(m)=33554430, e=-128, m=33554430] [L29] COND FALSE !(! m) VAL [\old(e)=-128, \old(m)=33554430, e=-128, m=33554430] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-128, \old(m)=33554430, e=-128, m=33554430] [L57] COND TRUE 1 VAL [\old(e)=-128, \old(m)=33554430, e=-128, m=33554430] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-128, \old(m)=33554430, e=-128, m=33554430] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=-128, \old(m)=33554430, e=-128, m=33554431] [L77] EXPR e + 128 [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=-128, \old(m)=33554430, __retres4=33554431, e=-128, m=33554431, res=33554431] [L80] return (__retres4); [L253] RET, EXPR base2flt(mb, eb) VAL [a=4294967295, base2flt(mb, eb)=-36028796985409537, ea=127, eb=-128, ma=33554432, mb=33554430, zero=0] [L253] b = base2flt(mb, eb) [L255] COND FALSE !(a < zero) [L258] COND TRUE a > zero [L259] tmp = 1 [L263] sa = tmp [L265] COND FALSE !(b < zero) [L268] COND TRUE b > zero [L269] tmp___0 = 1 [L273] sb = tmp___0 [L276] CALL addflt(a, b) [L84] unsigned int res ; [L85] unsigned int ma ; [L86] unsigned int mb ; [L87] unsigned int delta ; [L88] int ea ; [L89] int eb ; [L90] unsigned int tmp ; [L91] unsigned int __retres10 ; [L94] COND FALSE !(a < b) VAL [\old(a)=4294967295, \old(b)=33554431, a=4294967295, b=33554431, tmp=4294967295] [L101] COND FALSE !(! b) [L108] ma = a & ((1U << 24U) - 1U) VAL [\old(a)=4294967295, \old(b)=33554431, a=4294967295, b=33554431, ma=0, tmp=4294967295] [L109] EXPR (int )(a >> 24U) - 128 [L109] ea = (int )(a >> 24U) - 128 [L110] ma = ma | (1U << 24U) [L111] mb = b & ((1U << 24U) - 1U) VAL [\old(a)=4294967295, \old(b)=33554431, a=4294967295, b=33554431, ea=127, ma=16777216, mb=4, tmp=4294967295] [L112] (int )(b >> 24U) - 128 VAL [\old(a)=4294967295, \old(b)=33554431, a=4294967295, b=33554431, ea=127, ma=16777216, mb=4, tmp=4294967295] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 74 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 25.4s, OverallIterations: 18, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1028 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 963 mSDsluCounter, 3759 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2854 mSDsCounter, 100 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2039 IncrementalHoareTripleChecker+Invalid, 2139 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 100 mSolverCounterUnsat, 905 mSDtfsCounter, 2039 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 418 GetRequests, 240 SyntacticMatches, 9 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 913 ImplicationChecksByTransitivity, 13.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=14, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 17 MinimizatonAttempts, 395 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 480 NumberOfCodeBlocks, 462 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 505 ConstructedInterpolants, 0 QuantifiedInterpolants, 1512 SizeOfPredicates, 35 NumberOfNonLiveVariables, 432 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 25 InterpolantComputations, 14 PerfectInterpolantSequences, 161/199 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: OVERALL_TIME: 1.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 21, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 22, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 9, TOOLS_POST_CALL_TIME: 0.3s, TOOLS_POST_RETURN_APPLICATIONS: 6, TOOLS_POST_RETURN_TIME: 0.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 37, TOOLS_QUANTIFIERELIM_TIME: 0.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 53, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 11, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 21, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 6, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 170, DAG_COMPRESSION_RETAINED_NODES: 49, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 22:41:47,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --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 2e6e06de31959e386aafc2fb45c848364ae9fea32df4ba40928c607f134f313f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:41:49,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:41:49,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:41:49,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:41:49,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:41:49,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:41:49,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:41:49,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:41:49,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:41:49,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:41:49,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:41:49,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:41:49,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:41:49,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:41:49,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:41:49,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:41:49,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:41:49,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:41:49,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:41:49,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:41:49,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:41:49,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:41:49,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:41:49,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:41:49,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:41:49,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:41:49,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:41:49,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:41:49,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:41:49,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:41:49,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:41:49,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:41:49,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:41:49,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:41:49,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:41:49,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:41:49,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:41:49,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:41:49,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:41:49,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:41:49,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:41:49,822 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2022-11-25 22:41:49,865 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:41:49,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:41:49,867 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:41:49,867 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:41:49,868 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:41:49,868 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:41:49,869 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:41:49,869 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:41:49,869 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:41:49,869 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:41:49,870 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:41:49,871 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:41:49,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:41:49,872 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:41:49,872 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:41:49,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:41:49,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:41:49,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:41:49,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:41:49,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:41:49,874 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:41:49,874 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:41:49,874 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:41:49,874 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:41:49,874 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:41:49,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:41:49,875 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:41:49,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:41:49,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:41:49,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:41:49,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:41:49,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:41:49,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:41:49,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:41:49,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:41:49,877 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:41:49,878 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:41:49,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:41:49,878 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:41:49,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:41:49,879 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e6e06de31959e386aafc2fb45c848364ae9fea32df4ba40928c607f134f313f [2022-11-25 22:41:50,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:41:50,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:41:50,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:41:50,297 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:41:50,297 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:41:50,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2022-11-25 22:41:53,400 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:41:53,626 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:41:53,627 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2022-11-25 22:41:53,635 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/data/7db44adf2/9f11d5b427b54ecdbb5a9c2c1ac041fa/FLAG290764243 [2022-11-25 22:41:53,652 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/data/7db44adf2/9f11d5b427b54ecdbb5a9c2c1ac041fa [2022-11-25 22:41:53,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:41:53,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:41:53,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:41:53,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:41:53,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:41:53,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:41:53" (1/1) ... [2022-11-25 22:41:53,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d57b48e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:53, skipping insertion in model container [2022-11-25 22:41:53,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:41:53" (1/1) ... [2022-11-25 22:41:53,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:41:53,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:41:53,872 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[730,743] [2022-11-25 22:41:53,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:41:53,987 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:41:54,000 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[730,743] [2022-11-25 22:41:54,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:41:54,045 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:41:54,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:54 WrapperNode [2022-11-25 22:41:54,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:41:54,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:41:54,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:41:54,047 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:41:54,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:54" (1/1) ... [2022-11-25 22:41:54,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:54" (1/1) ... [2022-11-25 22:41:54,114 INFO L138 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 155 [2022-11-25 22:41:54,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:41:54,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:41:54,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:41:54,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:41:54,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:54" (1/1) ... [2022-11-25 22:41:54,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:54" (1/1) ... [2022-11-25 22:41:54,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:54" (1/1) ... [2022-11-25 22:41:54,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:54" (1/1) ... [2022-11-25 22:41:54,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:54" (1/1) ... [2022-11-25 22:41:54,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:54" (1/1) ... [2022-11-25 22:41:54,171 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:54" (1/1) ... [2022-11-25 22:41:54,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:54" (1/1) ... [2022-11-25 22:41:54,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:41:54,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:41:54,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:41:54,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:41:54,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:54" (1/1) ... [2022-11-25 22:41:54,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:41:54,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:41:54,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:41:54,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:41:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:41:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 22:41:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-25 22:41:54,277 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-25 22:41:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:41:54,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:41:54,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:41:54,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:41:54,399 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:41:54,401 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:41:54,881 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:41:54,897 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:41:54,900 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 22:41:54,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:41:54 BoogieIcfgContainer [2022-11-25 22:41:54,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:41:54,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:41:54,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:41:54,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:41:54,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:41:53" (1/3) ... [2022-11-25 22:41:54,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332dbd97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:41:54, skipping insertion in model container [2022-11-25 22:41:54,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:41:54" (2/3) ... [2022-11-25 22:41:54,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332dbd97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:41:54, skipping insertion in model container [2022-11-25 22:41:54,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:41:54" (3/3) ... [2022-11-25 22:41:54,917 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2022-11-25 22:41:54,937 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:41:54,937 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-25 22:41:55,027 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:41:55,034 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@59810d10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:41:55,035 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-25 22:41:55,040 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 74 states have (on average 1.6756756756756757) internal successors, (124), 92 states have internal predecessors, (124), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-25 22:41:55,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 22:41:55,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:55,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:55,050 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:55,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:55,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1558059187, now seen corresponding path program 1 times [2022-11-25 22:41:55,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:41:55,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278460946] [2022-11-25 22:41:55,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:55,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:41:55,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:41:55,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:41:55,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 22:41:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:55,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 22:41:55,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:41:55,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:41:55,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:41:55,263 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:41:55,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278460946] [2022-11-25 22:41:55,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278460946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:55,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:55,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:41:55,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984860973] [2022-11-25 22:41:55,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:55,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:41:55,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:41:55,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:41:55,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:41:55,325 INFO L87 Difference]: Start difference. First operand has 102 states, 74 states have (on average 1.6756756756756757) internal successors, (124), 92 states have internal predecessors, (124), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-11-25 22:41:55,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:55,395 INFO L93 Difference]: Finished difference Result 192 states and 289 transitions. [2022-11-25 22:41:55,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:41:55,418 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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 9 [2022-11-25 22:41:55,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:55,428 INFO L225 Difference]: With dead ends: 192 [2022-11-25 22:41:55,429 INFO L226 Difference]: Without dead ends: 65 [2022-11-25 22:41:55,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:41:55,438 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:55,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:41:55,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-25 22:41:55,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-25 22:41:55,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 50 states have (on average 1.36) internal successors, (68), 56 states have internal predecessors, (68), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 22:41:55,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2022-11-25 22:41:55,503 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 80 transitions. Word has length 9 [2022-11-25 22:41:55,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:55,504 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 80 transitions. [2022-11-25 22:41:55,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-11-25 22:41:55,504 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2022-11-25 22:41:55,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 22:41:55,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:55,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:55,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:41:55,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:41:55,719 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:55,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:55,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1559000453, now seen corresponding path program 1 times [2022-11-25 22:41:55,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:41:55,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443554768] [2022-11-25 22:41:55,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:55,721 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:41:55,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:41:55,723 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:41:55,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 22:41:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:55,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:41:55,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:41:55,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:41:55,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:41:55,803 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:41:55,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443554768] [2022-11-25 22:41:55,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443554768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:55,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:55,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:41:55,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582699516] [2022-11-25 22:41:55,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:55,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:41:55,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:41:55,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:41:55,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:41:55,807 INFO L87 Difference]: Start difference. First operand 65 states and 80 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-25 22:41:55,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:55,869 INFO L93 Difference]: Finished difference Result 135 states and 166 transitions. [2022-11-25 22:41:55,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:41:55,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 9 [2022-11-25 22:41:55,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:55,873 INFO L225 Difference]: With dead ends: 135 [2022-11-25 22:41:55,873 INFO L226 Difference]: Without dead ends: 73 [2022-11-25 22:41:55,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:41:55,875 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 9 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:55,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 218 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:41:55,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-25 22:41:55,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 70. [2022-11-25 22:41:55,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 54 states have (on average 1.3333333333333333) internal successors, (72), 60 states have internal predecessors, (72), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 22:41:55,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 84 transitions. [2022-11-25 22:41:55,888 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 84 transitions. Word has length 9 [2022-11-25 22:41:55,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:55,888 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 84 transitions. [2022-11-25 22:41:55,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-25 22:41:55,889 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2022-11-25 22:41:55,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 22:41:55,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:55,890 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:55,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:41:56,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:41:56,099 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:56,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:56,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1313459023, now seen corresponding path program 1 times [2022-11-25 22:41:56,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:41:56,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421297132] [2022-11-25 22:41:56,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:56,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:41:56,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:41:56,102 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:41:56,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 22:41:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:56,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:41:56,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:41:56,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:41:56,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:41:56,186 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:41:56,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421297132] [2022-11-25 22:41:56,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421297132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:56,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:56,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:41:56,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412322500] [2022-11-25 22:41:56,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:56,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:41:56,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:41:56,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:41:56,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:41:56,196 INFO L87 Difference]: Start difference. First operand 70 states and 84 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:41:56,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:56,261 INFO L93 Difference]: Finished difference Result 73 states and 88 transitions. [2022-11-25 22:41:56,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:41:56,262 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-25 22:41:56,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:56,264 INFO L225 Difference]: With dead ends: 73 [2022-11-25 22:41:56,264 INFO L226 Difference]: Without dead ends: 72 [2022-11-25 22:41:56,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:41:56,265 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 3 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:56,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 149 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:41:56,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-25 22:41:56,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2022-11-25 22:41:56,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 59 states have internal predecessors, (71), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 22:41:56,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 83 transitions. [2022-11-25 22:41:56,286 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 83 transitions. Word has length 16 [2022-11-25 22:41:56,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:56,286 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 83 transitions. [2022-11-25 22:41:56,287 INFO L496 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:41:56,287 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 83 transitions. [2022-11-25 22:41:56,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 22:41:56,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:56,288 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:56,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:41:56,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:41:56,500 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:56,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:56,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1373713817, now seen corresponding path program 1 times [2022-11-25 22:41:56,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:41:56,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654173230] [2022-11-25 22:41:56,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:56,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:41:56,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:41:56,502 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:41:56,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 22:41:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:56,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:41:56,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:41:56,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:41:56,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:41:56,602 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:41:56,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654173230] [2022-11-25 22:41:56,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654173230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:56,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:56,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:41:56,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7555108] [2022-11-25 22:41:56,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:56,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:41:56,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:41:56,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:41:56,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:41:56,606 INFO L87 Difference]: Start difference. First operand 69 states and 83 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:41:56,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:56,656 INFO L93 Difference]: Finished difference Result 72 states and 87 transitions. [2022-11-25 22:41:56,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:41:56,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-25 22:41:56,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:56,658 INFO L225 Difference]: With dead ends: 72 [2022-11-25 22:41:56,659 INFO L226 Difference]: Without dead ends: 71 [2022-11-25 22:41:56,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:41:56,660 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 2 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:56,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 148 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:41:56,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-25 22:41:56,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 68. [2022-11-25 22:41:56,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 54 states have (on average 1.2962962962962963) internal successors, (70), 58 states have internal predecessors, (70), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 22:41:56,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2022-11-25 22:41:56,670 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 82 transitions. Word has length 18 [2022-11-25 22:41:56,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:56,671 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 82 transitions. [2022-11-25 22:41:56,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:41:56,671 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 82 transitions. [2022-11-25 22:41:56,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 22:41:56,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:56,673 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:56,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:41:56,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:41:56,885 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:56,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:56,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1373781343, now seen corresponding path program 1 times [2022-11-25 22:41:56,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:41:56,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54112410] [2022-11-25 22:41:56,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:56,887 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:41:56,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:41:56,888 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:41:56,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-25 22:41:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:56,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:41:56,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:41:57,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:41:57,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:41:57,065 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:41:57,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54112410] [2022-11-25 22:41:57,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54112410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:57,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:57,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:41:57,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819818305] [2022-11-25 22:41:57,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:57,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:41:57,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:41:57,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:41:57,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:41:57,071 INFO L87 Difference]: Start difference. First operand 68 states and 82 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:41:57,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:57,534 INFO L93 Difference]: Finished difference Result 84 states and 102 transitions. [2022-11-25 22:41:57,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:41:57,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-25 22:41:57,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:57,539 INFO L225 Difference]: With dead ends: 84 [2022-11-25 22:41:57,540 INFO L226 Difference]: Without dead ends: 83 [2022-11-25 22:41:57,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:41:57,541 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 55 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:57,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 170 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 22:41:57,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-25 22:41:57,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 73. [2022-11-25 22:41:57,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 63 states have internal predecessors, (76), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 22:41:57,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2022-11-25 22:41:57,572 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 18 [2022-11-25 22:41:57,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:57,573 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2022-11-25 22:41:57,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:41:57,573 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2022-11-25 22:41:57,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 22:41:57,574 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:57,574 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:57,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:41:57,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:41:57,797 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:41:57,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:57,798 INFO L85 PathProgramCache]: Analyzing trace with hash -581634771, now seen corresponding path program 1 times [2022-11-25 22:41:57,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:41:57,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090404867] [2022-11-25 22:41:57,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:57,799 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:41:57,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:41:57,800 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:41:57,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-25 22:41:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:57,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:41:57,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:41:58,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:41:58,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:41:58,705 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:41:58,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090404867] [2022-11-25 22:41:58,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090404867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:58,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:58,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:41:58,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537415802] [2022-11-25 22:41:58,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:58,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:41:58,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:41:58,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:41:58,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:41:58,707 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:42:01,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:01,487 INFO L93 Difference]: Finished difference Result 89 states and 109 transitions. [2022-11-25 22:42:01,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:42:01,488 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-25 22:42:01,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:01,489 INFO L225 Difference]: With dead ends: 89 [2022-11-25 22:42:01,489 INFO L226 Difference]: Without dead ends: 88 [2022-11-25 22:42:01,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:42:01,491 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 57 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:01,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 204 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 22:42:01,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-25 22:42:01,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 67. [2022-11-25 22:42:01,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 54 states have (on average 1.2777777777777777) internal successors, (69), 57 states have internal predecessors, (69), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 22:42:01,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 81 transitions. [2022-11-25 22:42:01,503 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 81 transitions. Word has length 21 [2022-11-25 22:42:01,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:01,504 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 81 transitions. [2022-11-25 22:42:01,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:42:01,504 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 81 transitions. [2022-11-25 22:42:01,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-25 22:42:01,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:01,506 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:42:01,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-11-25 22:42:01,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:01,717 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:42:01,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:01,718 INFO L85 PathProgramCache]: Analyzing trace with hash -998317733, now seen corresponding path program 1 times [2022-11-25 22:42:01,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:42:01,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081609271] [2022-11-25 22:42:01,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:01,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:01,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:42:01,720 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:42:01,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-25 22:42:01,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:01,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:42:01,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:01,867 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:42:01,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:42:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:42:01,948 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:42:01,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081609271] [2022-11-25 22:42:01,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081609271] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:42:01,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1152625662] [2022-11-25 22:42:01,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:01,949 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:42:01,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:42:01,954 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:42:01,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-11-25 22:42:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:02,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:42:02,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:02,141 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:42:02,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:42:02,208 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:42:02,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1152625662] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:42:02,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376387291] [2022-11-25 22:42:02,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:02,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:42:02,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:42:02,213 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:42:02,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 22:42:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:02,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:42:02,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:02,348 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:42:02,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:42:02,425 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:42:02,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376387291] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:42:02,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-25 22:42:02,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 8, 8, 8, 8] total 10 [2022-11-25 22:42:02,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823058872] [2022-11-25 22:42:02,427 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-25 22:42:02,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 22:42:02,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:42:02,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 22:42:02,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:42:02,429 INFO L87 Difference]: Start difference. First operand 67 states and 81 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 22:42:02,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:02,648 INFO L93 Difference]: Finished difference Result 116 states and 143 transitions. [2022-11-25 22:42:02,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 22:42:02,648 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 38 [2022-11-25 22:42:02,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:02,649 INFO L225 Difference]: With dead ends: 116 [2022-11-25 22:42:02,650 INFO L226 Difference]: Without dead ends: 70 [2022-11-25 22:42:02,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-25 22:42:02,651 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 54 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:02,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 527 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:42:02,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-25 22:42:02,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-25 22:42:02,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 60 states have internal predecessors, (68), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-25 22:42:02,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2022-11-25 22:42:02,663 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 38 [2022-11-25 22:42:02,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:02,664 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2022-11-25 22:42:02,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 22:42:02,664 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2022-11-25 22:42:02,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 22:42:02,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:02,666 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:42:02,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:02,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:03,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:03,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:03,268 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:42:03,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:03,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1527198356, now seen corresponding path program 1 times [2022-11-25 22:42:03,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:42:03,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234445239] [2022-11-25 22:42:03,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:03,270 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:03,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:42:03,271 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:42:03,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-25 22:42:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:03,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:42:03,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:03,395 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:42:03,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:42:03,396 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:42:03,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234445239] [2022-11-25 22:42:03,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234445239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:42:03,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:42:03,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:42:03,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121877519] [2022-11-25 22:42:03,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:42:03,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:42:03,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:42:03,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:42:03,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:42:03,399 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:42:03,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:03,470 INFO L93 Difference]: Finished difference Result 132 states and 151 transitions. [2022-11-25 22:42:03,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:42:03,471 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2022-11-25 22:42:03,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:03,472 INFO L225 Difference]: With dead ends: 132 [2022-11-25 22:42:03,472 INFO L226 Difference]: Without dead ends: 102 [2022-11-25 22:42:03,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:42:03,473 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 27 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:03,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 347 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:42:03,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-25 22:42:03,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 76. [2022-11-25 22:42:03,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 65 states have internal predecessors, (74), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-25 22:42:03,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2022-11-25 22:42:03,493 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 46 [2022-11-25 22:42:03,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:03,494 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2022-11-25 22:42:03,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:42:03,494 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2022-11-25 22:42:03,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 22:42:03,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:03,500 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:42:03,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:03,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:03,711 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:42:03,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:03,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1487905262, now seen corresponding path program 1 times [2022-11-25 22:42:03,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:42:03,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [875429406] [2022-11-25 22:42:03,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:03,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:03,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:42:03,714 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:42:03,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-25 22:42:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:03,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 22:42:03,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 22:42:03,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:42:04,135 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:42:04,135 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:42:04,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [875429406] [2022-11-25 22:42:04,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [875429406] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 22:42:04,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:42:04,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 14 [2022-11-25 22:42:04,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210952746] [2022-11-25 22:42:04,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:42:04,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:42:04,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:42:04,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:42:04,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-25 22:42:04,137 INFO L87 Difference]: Start difference. First operand 76 states and 87 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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) [2022-11-25 22:42:04,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:04,337 INFO L93 Difference]: Finished difference Result 129 states and 146 transitions. [2022-11-25 22:42:04,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:42:04,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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 46 [2022-11-25 22:42:04,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:04,341 INFO L225 Difference]: With dead ends: 129 [2022-11-25 22:42:04,341 INFO L226 Difference]: Without dead ends: 102 [2022-11-25 22:42:04,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-11-25 22:42:04,342 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 65 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:04,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 345 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:42:04,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-25 22:42:04,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 79. [2022-11-25 22:42:04,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 68 states have internal predecessors, (77), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-25 22:42:04,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2022-11-25 22:42:04,358 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 46 [2022-11-25 22:42:04,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:04,359 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2022-11-25 22:42:04,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 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) [2022-11-25 22:42:04,359 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2022-11-25 22:42:04,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 22:42:04,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:04,367 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:42:04,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:04,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:04,584 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:42:04,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:04,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1746070700, now seen corresponding path program 1 times [2022-11-25 22:42:04,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:42:04,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042626252] [2022-11-25 22:42:04,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:04,585 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:04,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:42:04,586 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:42:04,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-25 22:42:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:04,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:42:04,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:04,725 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:42:04,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:42:04,726 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:42:04,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042626252] [2022-11-25 22:42:04,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042626252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:42:04,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:42:04,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 22:42:04,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114439971] [2022-11-25 22:42:04,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:42:04,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:42:04,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:42:04,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:42:04,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:42:04,729 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:42:04,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:04,810 INFO L93 Difference]: Finished difference Result 106 states and 119 transitions. [2022-11-25 22:42:04,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:42:04,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2022-11-25 22:42:04,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:04,818 INFO L225 Difference]: With dead ends: 106 [2022-11-25 22:42:04,818 INFO L226 Difference]: Without dead ends: 67 [2022-11-25 22:42:04,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:42:04,819 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 4 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:04,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 394 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:42:04,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-25 22:42:04,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-25 22:42:04,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 57 states have internal predecessors, (64), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 22:42:04,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 76 transitions. [2022-11-25 22:42:04,828 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 76 transitions. Word has length 46 [2022-11-25 22:42:04,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:04,828 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 76 transitions. [2022-11-25 22:42:04,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:42:04,829 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 76 transitions. [2022-11-25 22:42:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-25 22:42:04,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:04,829 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:42:04,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:05,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:05,041 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:42:05,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:05,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1609276837, now seen corresponding path program 2 times [2022-11-25 22:42:05,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:42:05,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469369588] [2022-11-25 22:42:05,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 22:42:05,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:05,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:42:05,044 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:42:05,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-25 22:42:05,098 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 22:42:05,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:42:05,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 22:42:05,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:05,248 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 22:42:05,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:42:05,249 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:42:05,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469369588] [2022-11-25 22:42:05,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469369588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:42:05,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:42:05,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 22:42:05,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038860087] [2022-11-25 22:42:05,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:42:05,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 22:42:05,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:42:05,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 22:42:05,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:42:05,251 INFO L87 Difference]: Start difference. First operand 67 states and 76 transitions. Second operand has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 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) [2022-11-25 22:42:05,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:05,650 INFO L93 Difference]: Finished difference Result 127 states and 148 transitions. [2022-11-25 22:42:05,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 22:42:05,651 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 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 50 [2022-11-25 22:42:05,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:05,652 INFO L225 Difference]: With dead ends: 127 [2022-11-25 22:42:05,652 INFO L226 Difference]: Without dead ends: 70 [2022-11-25 22:42:05,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-11-25 22:42:05,653 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 70 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:05,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 555 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:42:05,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-25 22:42:05,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-25 22:42:05,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 56 states have (on average 1.1785714285714286) internal successors, (66), 60 states have internal predecessors, (66), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-25 22:42:05,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 79 transitions. [2022-11-25 22:42:05,662 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 79 transitions. Word has length 50 [2022-11-25 22:42:05,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:05,663 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 79 transitions. [2022-11-25 22:42:05,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 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) [2022-11-25 22:42:05,663 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions. [2022-11-25 22:42:05,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-25 22:42:05,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:05,664 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:42:05,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:05,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:05,875 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:42:05,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:05,876 INFO L85 PathProgramCache]: Analyzing trace with hash -181865359, now seen corresponding path program 1 times [2022-11-25 22:42:05,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:42:05,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95483390] [2022-11-25 22:42:05,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:05,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:05,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:42:05,878 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:42:05,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-25 22:42:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:05,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-25 22:42:05,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:06,027 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 22:42:06,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:42:06,228 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 22:42:06,229 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:42:06,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95483390] [2022-11-25 22:42:06,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95483390] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 22:42:06,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:42:06,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-11-25 22:42:06,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101050864] [2022-11-25 22:42:06,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:42:06,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:42:06,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:42:06,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:42:06,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:42:06,232 INFO L87 Difference]: Start difference. First operand 70 states and 79 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2022-11-25 22:42:06,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:06,339 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2022-11-25 22:42:06,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:42:06,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 52 [2022-11-25 22:42:06,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:06,340 INFO L225 Difference]: With dead ends: 70 [2022-11-25 22:42:06,340 INFO L226 Difference]: Without dead ends: 69 [2022-11-25 22:42:06,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:42:06,341 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 13 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:06,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 163 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:42:06,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-25 22:42:06,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-25 22:42:06,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.1607142857142858) internal successors, (65), 59 states have internal predecessors, (65), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-25 22:42:06,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2022-11-25 22:42:06,350 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 52 [2022-11-25 22:42:06,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:06,351 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2022-11-25 22:42:06,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2022-11-25 22:42:06,351 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2022-11-25 22:42:06,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-25 22:42:06,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:06,352 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:42:06,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:06,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:06,564 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:42:06,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:06,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1342858669, now seen corresponding path program 1 times [2022-11-25 22:42:06,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:42:06,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068730840] [2022-11-25 22:42:06,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:06,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:06,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:42:06,566 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:42:06,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-25 22:42:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:06,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-25 22:42:06,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:06,705 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 22:42:06,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:42:06,853 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 22:42:06,853 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:42:06,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068730840] [2022-11-25 22:42:06,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068730840] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 22:42:06,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:42:06,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-11-25 22:42:06,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834799991] [2022-11-25 22:42:06,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:42:06,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:42:06,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:42:06,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:42:06,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:42:06,855 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:42:07,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:07,010 INFO L93 Difference]: Finished difference Result 74 states and 83 transitions. [2022-11-25 22:42:07,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:42:07,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 53 [2022-11-25 22:42:07,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:07,012 INFO L225 Difference]: With dead ends: 74 [2022-11-25 22:42:07,012 INFO L226 Difference]: Without dead ends: 73 [2022-11-25 22:42:07,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:42:07,013 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 24 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:07,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 166 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:42:07,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-25 22:42:07,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2022-11-25 22:42:07,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 58 states have internal predecessors, (64), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-25 22:42:07,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 77 transitions. [2022-11-25 22:42:07,028 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 77 transitions. Word has length 53 [2022-11-25 22:42:07,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:07,028 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 77 transitions. [2022-11-25 22:42:07,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:42:07,029 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions. [2022-11-25 22:42:07,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-25 22:42:07,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:07,030 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:42:07,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:07,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:07,241 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:42:07,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:07,241 INFO L85 PathProgramCache]: Analyzing trace with hash 2145100703, now seen corresponding path program 1 times [2022-11-25 22:42:07,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:42:07,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605756726] [2022-11-25 22:42:07,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:07,242 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:07,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:42:07,243 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:42:07,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-25 22:42:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:07,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-25 22:42:07,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:07,522 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 22:42:07,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:42:07,798 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:42:07,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605756726] [2022-11-25 22:42:07,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605756726] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:42:07,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [371239339] [2022-11-25 22:42:07,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:07,799 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:42:07,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:42:07,803 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:42:07,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-11-25 22:42:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:07,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:42:07,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:07,938 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-25 22:42:07,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:42:08,007 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-25 22:42:08,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [371239339] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:42:08,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109353394] [2022-11-25 22:42:08,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:08,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:42:08,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:42:08,010 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:42:08,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-25 22:42:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:08,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:42:08,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:08,127 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-25 22:42:08,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:42:08,192 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-25 22:42:08,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109353394] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:42:08,193 INFO L184 FreeRefinementEngine]: Found 0 perfect and 5 imperfect interpolant sequences. [2022-11-25 22:42:08,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7, 7, 7] total 13 [2022-11-25 22:42:08,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016142374] [2022-11-25 22:42:08,196 INFO L85 oduleStraightlineAll]: Using 5 imperfect interpolants to construct interpolant automaton [2022-11-25 22:42:08,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 22:42:08,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:42:08,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 22:42:08,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-11-25 22:42:08,199 INFO L87 Difference]: Start difference. First operand 68 states and 77 transitions. Second operand has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 5 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-25 22:42:08,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:08,601 INFO L93 Difference]: Finished difference Result 128 states and 147 transitions. [2022-11-25 22:42:08,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 22:42:08,602 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 5 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) Word has length 64 [2022-11-25 22:42:08,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:08,603 INFO L225 Difference]: With dead ends: 128 [2022-11-25 22:42:08,603 INFO L226 Difference]: Without dead ends: 99 [2022-11-25 22:42:08,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2022-11-25 22:42:08,604 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 53 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:08,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 729 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 22:42:08,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-25 22:42:08,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 94. [2022-11-25 22:42:08,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 79 states have (on average 1.1139240506329113) internal successors, (88), 80 states have internal predecessors, (88), 9 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2022-11-25 22:42:08,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 107 transitions. [2022-11-25 22:42:08,614 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 107 transitions. Word has length 64 [2022-11-25 22:42:08,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:08,615 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 107 transitions. [2022-11-25 22:42:08,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 5 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-25 22:42:08,615 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 107 transitions. [2022-11-25 22:42:08,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-25 22:42:08,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:08,616 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:42:08,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:08,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:09,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:09,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-25 22:42:09,223 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:42:09,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:09,223 INFO L85 PathProgramCache]: Analyzing trace with hash -353543927, now seen corresponding path program 1 times [2022-11-25 22:42:09,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:42:09,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775407970] [2022-11-25 22:42:09,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:09,224 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:09,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:42:09,225 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:42:09,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-25 22:42:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:09,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:42:09,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:09,375 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-25 22:42:09,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:42:09,376 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:42:09,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775407970] [2022-11-25 22:42:09,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775407970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:42:09,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:42:09,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:42:09,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758009626] [2022-11-25 22:42:09,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:42:09,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:42:09,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:42:09,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:42:09,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:42:09,379 INFO L87 Difference]: Start difference. First operand 94 states and 107 transitions. Second operand has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 22:42:09,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:09,465 INFO L93 Difference]: Finished difference Result 99 states and 112 transitions. [2022-11-25 22:42:09,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:42:09,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 66 [2022-11-25 22:42:09,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:09,466 INFO L225 Difference]: With dead ends: 99 [2022-11-25 22:42:09,466 INFO L226 Difference]: Without dead ends: 93 [2022-11-25 22:42:09,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:42:09,467 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 3 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:09,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 119 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:42:09,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-25 22:42:09,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 78. [2022-11-25 22:42:09,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 66 states have (on average 1.106060606060606) internal successors, (73), 66 states have internal predecessors, (73), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2022-11-25 22:42:09,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2022-11-25 22:42:09,480 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 66 [2022-11-25 22:42:09,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:09,481 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2022-11-25 22:42:09,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 22:42:09,481 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2022-11-25 22:42:09,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-25 22:42:09,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:09,482 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:42:09,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-11-25 22:42:09,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:09,694 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-25 22:42:09,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:09,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1874504783, now seen corresponding path program 1 times [2022-11-25 22:42:09,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:42:09,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885942156] [2022-11-25 22:42:09,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:09,696 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:42:09,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:42:09,697 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:42:09,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-25 22:42:09,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:09,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 22:42:09,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:09,877 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-25 22:42:09,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:42:10,036 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:42:10,036 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:42:10,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885942156] [2022-11-25 22:42:10,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885942156] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:42:10,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [881578488] [2022-11-25 22:42:10,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:10,037 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:42:10,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:42:10,038 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:42:10,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2022-11-25 22:42:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:10,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 22:42:10,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:10,260 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-25 22:42:10,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:42:10,360 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:42:10,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [881578488] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:42:10,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711598552] [2022-11-25 22:42:10,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:10,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:42:10,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:42:10,363 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:42:10,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-25 22:42:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:10,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:42:10,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:10,535 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-25 22:42:10,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:42:10,704 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 22:42:10,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711598552] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 22:42:10,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2022-11-25 22:42:10,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8, 8, 8, 8, 8] total 16 [2022-11-25 22:42:10,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106656645] [2022-11-25 22:42:10,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:42:10,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:42:10,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:42:10,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:42:10,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-25 22:42:10,707 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 22:42:10,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:10,805 INFO L93 Difference]: Finished difference Result 78 states and 88 transitions. [2022-11-25 22:42:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:42:10,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 72 [2022-11-25 22:42:10,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:10,806 INFO L225 Difference]: With dead ends: 78 [2022-11-25 22:42:10,806 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 22:42:10,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-25 22:42:10,807 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 9 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:10,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 163 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:42:10,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 22:42:10,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 22:42:10,808 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) [2022-11-25 22:42:10,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 22:42:10,809 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2022-11-25 22:42:10,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:10,809 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 22:42:10,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 22:42:10,809 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 22:42:10,809 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 22:42:10,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-11-25 22:42:10,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-11-25 22:42:10,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-11-25 22:42:10,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-11-25 22:42:10,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2022-11-25 22:42:10,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2022-11-25 22:42:10,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2022-11-25 22:42:10,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2022-11-25 22:42:10,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-11-25 22:42:10,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-11-25 22:42:10,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2022-11-25 22:42:10,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2022-11-25 22:42:10,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-11-25 22:42:10,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-11-25 22:42:10,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-11-25 22:42:10,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-11-25 22:42:10,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:11,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-11-25 22:42:11,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:11,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:42:11,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 22:42:14,711 INFO L899 garLoopResultBuilder]: For program point base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2022-11-25 22:42:14,711 INFO L899 garLoopResultBuilder]: For program point base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2022-11-25 22:42:14,711 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2022-11-25 22:42:14,711 INFO L899 garLoopResultBuilder]: For program point L77-1(line 77) no Hoare annotation was computed. [2022-11-25 22:42:14,712 INFO L895 garLoopResultBuilder]: At program point L73(lines 35 75) the Hoare annotation is: (let ((.cse0 (forall ((|v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2| (_ BitVec 8))) (not (= |base2flt_#in~e| ((_ sign_extend 24) |v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2|)))))) (and (or (exists ((|v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2| (_ BitVec 8))) (= base2flt_~e ((_ sign_extend 24) |v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2|))) .cse0) (or (not (= |base2flt_#in~m| (_ bv0 32))) .cse0))) [2022-11-25 22:42:14,712 INFO L895 garLoopResultBuilder]: At program point L57-2(lines 57 72) the Hoare annotation is: (let ((.cse0 (forall ((|v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2| (_ BitVec 8))) (not (= |base2flt_#in~e| ((_ sign_extend 24) |v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2|)))))) (and (or (exists ((|v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2| (_ BitVec 8))) (= base2flt_~e ((_ sign_extend 24) |v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2|))) .cse0) (or (not (= |base2flt_#in~m| (_ bv0 32))) .cse0))) [2022-11-25 22:42:14,712 INFO L899 garLoopResultBuilder]: For program point base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 77) no Hoare annotation was computed. [2022-11-25 22:42:14,712 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2022-11-25 22:42:14,712 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2022-11-25 22:42:14,712 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2022-11-25 22:42:14,713 INFO L899 garLoopResultBuilder]: For program point L70-1(line 70) no Hoare annotation was computed. [2022-11-25 22:42:14,713 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 34) no Hoare annotation was computed. [2022-11-25 22:42:14,713 INFO L899 garLoopResultBuilder]: For program point L58(lines 57 72) no Hoare annotation was computed. [2022-11-25 22:42:14,713 INFO L902 garLoopResultBuilder]: At program point base2fltENTRY(lines 24 82) the Hoare annotation is: true [2022-11-25 22:42:14,713 INFO L899 garLoopResultBuilder]: For program point base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2022-11-25 22:42:14,714 INFO L895 garLoopResultBuilder]: At program point L79(lines 28 81) the Hoare annotation is: (let ((.cse0 (forall ((|v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2| (_ BitVec 8))) (not (= |base2flt_#in~e| ((_ sign_extend 24) |v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2|)))))) (and (or (exists ((|v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2| (_ BitVec 8))) (= base2flt_~e ((_ sign_extend 24) |v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2|))) .cse0) (or (not (= |base2flt_#in~m| (_ bv0 32))) (and (= base2flt_~m (_ bv0 32)) (= base2flt_~__retres4~0 (_ bv0 32))) .cse0))) [2022-11-25 22:42:14,714 INFO L899 garLoopResultBuilder]: For program point base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 77) no Hoare annotation was computed. [2022-11-25 22:42:14,714 INFO L899 garLoopResultBuilder]: For program point L38(lines 37 52) no Hoare annotation was computed. [2022-11-25 22:42:14,714 INFO L899 garLoopResultBuilder]: For program point base2fltFINAL(lines 24 82) no Hoare annotation was computed. [2022-11-25 22:42:14,714 INFO L899 garLoopResultBuilder]: For program point L59(lines 57 72) no Hoare annotation was computed. [2022-11-25 22:42:14,714 INFO L899 garLoopResultBuilder]: For program point base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2022-11-25 22:42:14,715 INFO L899 garLoopResultBuilder]: For program point base2fltEXIT(lines 24 82) no Hoare annotation was computed. [2022-11-25 22:42:14,715 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 51) no Hoare annotation was computed. [2022-11-25 22:42:14,715 INFO L895 garLoopResultBuilder]: At program point L47-1(lines 37 52) the Hoare annotation is: (let ((.cse0 (forall ((|v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2| (_ BitVec 8))) (not (= |base2flt_#in~e| ((_ sign_extend 24) |v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2|)))))) (and (or (exists ((|v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2| (_ BitVec 8))) (= base2flt_~e ((_ sign_extend 24) |v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2|))) .cse0) (or (not (= |base2flt_#in~m| (_ bv0 32))) .cse0))) [2022-11-25 22:42:14,715 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 75) no Hoare annotation was computed. [2022-11-25 22:42:14,715 INFO L899 garLoopResultBuilder]: For program point L258-2(lines 258 262) no Hoare annotation was computed. [2022-11-25 22:42:14,716 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 112) no Hoare annotation was computed. [2022-11-25 22:42:14,716 INFO L899 garLoopResultBuilder]: For program point L126(lines 126 137) no Hoare annotation was computed. [2022-11-25 22:42:14,716 INFO L895 garLoopResultBuilder]: At program point L126-2(lines 126 137) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 1) |ULTIMATE.start_addflt_~ea~0#1|))) (and (not (bvult |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_addflt_~b#1|)) (bvsle (_ bv6442450944 33) (bvadd .cse0 (bvneg ((_ sign_extend 1) |ULTIMATE.start_addflt_~eb~0#1|)))) (bvsle (bvadd .cse0 (_ bv128 33)) (_ bv2147483647 33)) (= (_ bv0 32) |ULTIMATE.start_main_~zero~0#1|))) [2022-11-25 22:42:14,716 INFO L902 garLoopResultBuilder]: At program point L316(lines 312 352) the Hoare annotation is: true [2022-11-25 22:42:14,716 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 287) no Hoare annotation was computed. [2022-11-25 22:42:14,717 INFO L899 garLoopResultBuilder]: For program point L283-2(lines 283 287) no Hoare annotation was computed. [2022-11-25 22:42:14,717 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 337) no Hoare annotation was computed. [2022-11-25 22:42:14,717 INFO L899 garLoopResultBuilder]: For program point L333-2(lines 333 337) no Hoare annotation was computed. [2022-11-25 22:42:14,717 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 133) no Hoare annotation was computed. [2022-11-25 22:42:14,717 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 109) no Hoare annotation was computed. [2022-11-25 22:42:14,717 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 132) no Hoare annotation was computed. [2022-11-25 22:42:14,718 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 100) no Hoare annotation was computed. [2022-11-25 22:42:14,718 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 22:42:14,718 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 22:42:14,718 INFO L899 garLoopResultBuilder]: For program point L94-2(lines 93 146) no Hoare annotation was computed. [2022-11-25 22:42:14,718 INFO L899 garLoopResultBuilder]: For program point L317-1(lines 315 349) no Hoare annotation was computed. [2022-11-25 22:42:14,718 INFO L902 garLoopResultBuilder]: At program point L251(line 251) the Hoare annotation is: true [2022-11-25 22:42:14,719 INFO L899 garLoopResultBuilder]: For program point L251-1(line 251) no Hoare annotation was computed. [2022-11-25 22:42:14,719 INFO L899 garLoopResultBuilder]: For program point L119(lines 119 124) no Hoare annotation was computed. [2022-11-25 22:42:14,719 INFO L902 garLoopResultBuilder]: At program point L144(lines 93 146) the Hoare annotation is: true [2022-11-25 22:42:14,719 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 272) no Hoare annotation was computed. [2022-11-25 22:42:14,719 INFO L899 garLoopResultBuilder]: For program point L268-2(lines 268 272) no Hoare annotation was computed. [2022-11-25 22:42:14,719 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 141) no Hoare annotation was computed. [2022-11-25 22:42:14,720 INFO L902 garLoopResultBuilder]: At program point L293-1(lines 293 302) the Hoare annotation is: true [2022-11-25 22:42:14,720 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 109) no Hoare annotation was computed. [2022-11-25 22:42:14,720 INFO L895 garLoopResultBuilder]: At program point L252(line 252) the Hoare annotation is: (= (_ bv0 32) |ULTIMATE.start_main_~zero~0#1|) [2022-11-25 22:42:14,720 INFO L899 garLoopResultBuilder]: For program point L252-1(line 252) no Hoare annotation was computed. [2022-11-25 22:42:14,720 INFO L902 garLoopResultBuilder]: At program point L145(lines 83 147) the Hoare annotation is: true [2022-11-25 22:42:14,720 INFO L899 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2022-11-25 22:42:14,720 INFO L899 garLoopResultBuilder]: For program point L112-1(line 112) no Hoare annotation was computed. [2022-11-25 22:42:14,720 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 141) no Hoare annotation was computed. [2022-11-25 22:42:14,721 INFO L895 garLoopResultBuilder]: At program point L253(line 253) the Hoare annotation is: (= (_ bv0 32) |ULTIMATE.start_main_~zero~0#1|) [2022-11-25 22:42:14,721 INFO L899 garLoopResultBuilder]: For program point L253-1(line 253) no Hoare annotation was computed. [2022-11-25 22:42:14,721 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 311) no Hoare annotation was computed. [2022-11-25 22:42:14,721 INFO L899 garLoopResultBuilder]: For program point L278-1(lines 249 355) no Hoare annotation was computed. [2022-11-25 22:42:14,722 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 324) no Hoare annotation was computed. [2022-11-25 22:42:14,722 INFO L899 garLoopResultBuilder]: For program point L320-2(lines 320 324) no Hoare annotation was computed. [2022-11-25 22:42:14,722 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 308) no Hoare annotation was computed. [2022-11-25 22:42:14,723 INFO L895 garLoopResultBuilder]: At program point L114(line 114) the Hoare annotation is: (and (exists ((|ULTIMATE.start_addflt_~a#1| (_ BitVec 32))) (= (bvlshr |ULTIMATE.start_addflt_~a#1| (_ bv24 32)) (bvadd (_ bv128 32) |ULTIMATE.start_addflt_~ea~0#1|))) (not (bvult |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_addflt_~b#1|)) (= (_ bv0 32) |ULTIMATE.start_main_~zero~0#1|) (bvsle (bvadd ((_ sign_extend 1) |ULTIMATE.start_addflt_~ea~0#1|) (bvneg ((_ sign_extend 1) |ULTIMATE.start_addflt_~eb~0#1|))) (_ bv2147483647 33))) [2022-11-25 22:42:14,723 INFO L899 garLoopResultBuilder]: For program point L114-1(line 114) no Hoare annotation was computed. [2022-11-25 22:42:14,725 INFO L899 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2022-11-25 22:42:14,725 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 300) no Hoare annotation was computed. [2022-11-25 22:42:14,725 INFO L899 garLoopResultBuilder]: For program point L296-2(lines 296 300) no Hoare annotation was computed. [2022-11-25 22:42:14,725 INFO L902 garLoopResultBuilder]: At program point L354(lines 225 356) the Hoare annotation is: true [2022-11-25 22:42:14,725 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 22:42:14,725 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 264) no Hoare annotation was computed. [2022-11-25 22:42:14,725 INFO L899 garLoopResultBuilder]: For program point L255-2(lines 249 355) no Hoare annotation was computed. [2022-11-25 22:42:14,725 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 115) no Hoare annotation was computed. [2022-11-25 22:42:14,725 INFO L899 garLoopResultBuilder]: For program point L280(lines 280 289) no Hoare annotation was computed. [2022-11-25 22:42:14,725 INFO L902 garLoopResultBuilder]: At program point L280-2(lines 280 289) the Hoare annotation is: true [2022-11-25 22:42:14,726 INFO L899 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2022-11-25 22:42:14,726 INFO L899 garLoopResultBuilder]: For program point L330(lines 330 339) no Hoare annotation was computed. [2022-11-25 22:42:14,726 INFO L899 garLoopResultBuilder]: For program point L330-2(lines 329 345) no Hoare annotation was computed. [2022-11-25 22:42:14,726 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 22:42:14,726 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 115) no Hoare annotation was computed. [2022-11-25 22:42:14,726 INFO L895 garLoopResultBuilder]: At program point L116(line 116) the Hoare annotation is: (let ((.cse0 (bvadd ((_ sign_extend 1) |ULTIMATE.start_addflt_~ea~0#1|) (bvneg ((_ sign_extend 1) |ULTIMATE.start_addflt_~eb~0#1|))))) (and (exists ((|ULTIMATE.start_addflt_~a#1| (_ BitVec 32))) (= (bvlshr |ULTIMATE.start_addflt_~a#1| (_ bv24 32)) (bvadd (_ bv128 32) |ULTIMATE.start_addflt_~ea~0#1|))) (not (bvult |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_addflt_~b#1|)) (bvsle (_ bv6442450944 33) .cse0) (= (_ bv0 32) |ULTIMATE.start_main_~zero~0#1|) (bvsle .cse0 (_ bv2147483647 33)))) [2022-11-25 22:42:14,726 INFO L899 garLoopResultBuilder]: For program point L116-1(line 116) no Hoare annotation was computed. [2022-11-25 22:42:14,727 INFO L899 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2022-11-25 22:42:14,727 INFO L899 garLoopResultBuilder]: For program point L141-1(line 141) no Hoare annotation was computed. [2022-11-25 22:42:14,727 INFO L899 garLoopResultBuilder]: For program point L265-1(lines 265 274) no Hoare annotation was computed. [2022-11-25 22:42:14,727 INFO L899 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2022-11-25 22:42:14,727 INFO L899 garLoopResultBuilder]: For program point L133-1(line 133) no Hoare annotation was computed. [2022-11-25 22:42:14,727 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 112) no Hoare annotation was computed. [2022-11-25 22:42:14,727 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 351) no Hoare annotation was computed. [2022-11-25 22:42:14,727 INFO L899 garLoopResultBuilder]: For program point L315-1(lines 315 351) no Hoare annotation was computed. [2022-11-25 22:42:14,728 INFO L902 garLoopResultBuilder]: At program point L340-1(lines 327 345) the Hoare annotation is: true [2022-11-25 22:42:14,728 INFO L899 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2022-11-25 22:42:14,728 INFO L899 garLoopResultBuilder]: For program point L109-1(line 109) no Hoare annotation was computed. [2022-11-25 22:42:14,728 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 133) no Hoare annotation was computed. [2022-11-25 22:42:14,728 INFO L899 garLoopResultBuilder]: For program point L291(lines 279 306) no Hoare annotation was computed. [2022-11-25 22:42:14,728 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 262) no Hoare annotation was computed. [2022-11-25 22:42:14,728 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-11-25 22:42:14,729 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 18) no Hoare annotation was computed. [2022-11-25 22:42:14,729 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 15 20) the Hoare annotation is: true [2022-11-25 22:42:14,729 INFO L899 garLoopResultBuilder]: For program point L16-2(lines 15 20) no Hoare annotation was computed. [2022-11-25 22:42:14,729 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 15 20) no Hoare annotation was computed. [2022-11-25 22:42:14,732 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:42:14,734 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:42:14,741 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,742 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,742 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,750 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,751 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,751 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,753 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,753 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,753 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,755 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,755 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,755 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,756 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,757 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,764 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,765 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,765 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,766 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,768 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,768 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,769 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,774 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,774 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,774 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:42:14 BoogieIcfgContainer [2022-11-25 22:42:14,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:42:14,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:42:14,775 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:42:14,775 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:42:14,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:41:54" (3/4) ... [2022-11-25 22:42:14,778 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 22:42:14,784 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure base2flt [2022-11-25 22:42:14,785 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-25 22:42:14,790 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-25 22:42:14,791 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-25 22:42:14,791 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 22:42:14,792 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 22:42:14,817 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: e == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(\old(e) == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) && ((!(\old(m) == 0bv32) || (m == 0bv32 && __retres4 == 0bv32)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(\old(e) == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) [2022-11-25 22:42:14,817 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: e == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(\old(e) == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) && (!(\old(m) == 0bv32) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(\old(e) == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) [2022-11-25 22:42:14,817 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: e == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(\old(e) == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) && (!(\old(m) == 0bv32) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(\old(e) == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) [2022-11-25 22:42:14,817 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: e == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(\old(e) == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) && (!(\old(m) == 0bv32) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(\old(e) == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) [2022-11-25 22:42:14,840 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:42:14,840 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:42:14,840 INFO L158 Benchmark]: Toolchain (without parser) took 21184.58ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 41.7MB in the beginning and 56.1MB in the end (delta: -14.4MB). Peak memory consumption was 615.8kB. Max. memory is 16.1GB. [2022-11-25 22:42:14,841 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 54.5MB. Free memory is still 32.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:42:14,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.40ms. Allocated memory is still 69.2MB. Free memory was 41.4MB in the beginning and 42.5MB in the end (delta: -1.1MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-11-25 22:42:14,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.87ms. Allocated memory is still 69.2MB. Free memory was 42.5MB in the beginning and 40.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:42:14,842 INFO L158 Benchmark]: Boogie Preprocessor took 66.53ms. Allocated memory is still 69.2MB. Free memory was 40.7MB in the beginning and 38.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:42:14,842 INFO L158 Benchmark]: RCFGBuilder took 719.02ms. Allocated memory is still 69.2MB. Free memory was 38.7MB in the beginning and 38.3MB in the end (delta: 447.2kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 22:42:14,843 INFO L158 Benchmark]: TraceAbstraction took 19869.33ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 37.7MB in the beginning and 61.1MB in the end (delta: -23.4MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2022-11-25 22:42:14,843 INFO L158 Benchmark]: Witness Printer took 64.97ms. Allocated memory is still 83.9MB. Free memory was 61.1MB in the beginning and 56.1MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:42:14,845 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 54.5MB. Free memory is still 32.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.40ms. Allocated memory is still 69.2MB. Free memory was 41.4MB in the beginning and 42.5MB in the end (delta: -1.1MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.87ms. Allocated memory is still 69.2MB. Free memory was 42.5MB in the beginning and 40.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 66.53ms. Allocated memory is still 69.2MB. Free memory was 40.7MB in the beginning and 38.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 719.02ms. Allocated memory is still 69.2MB. Free memory was 38.7MB in the beginning and 38.3MB in the end (delta: 447.2kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 19869.33ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 37.7MB in the beginning and 61.1MB in the end (delta: -23.4MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. * Witness Printer took 64.97ms. Allocated memory is still 83.9MB. Free memory was 61.1MB in the beginning and 56.1MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] * 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: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 115]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 115]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 133]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 133]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 141]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 141]: 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, 102 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 19.7s, OverallIterations: 16, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 460 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 448 mSDsluCounter, 4525 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3366 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 974 IncrementalHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 1159 mSDtfsCounter, 974 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1597 GetRequests, 1474 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=0, InterpolantAutomatonStates: 95, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 114 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 97 PreInvPairs, 135 NumberOfFragments, 197 HoareAnnotationTreeSize, 97 FomulaSimplifications, 337 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 19 FomulaSimplificationsInter, 1666 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 972 NumberOfCodeBlocks, 954 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1548 ConstructedInterpolants, 33 QuantifiedInterpolants, 3225 SizeOfPredicates, 69 NumberOfNonLiveVariables, 1810 ConjunctsInSsa, 161 ConjunctsInUnsatCore, 33 InterpolantComputations, 14 PerfectInterpolantSequences, 501/564 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 16 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant [2022-11-25 22:42:14,857 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,857 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,857 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,857 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,858 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,858 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: e == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(\old(e) == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) && (!(\old(m) == 0bv32) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(\old(e) == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) - InvariantResult [Line: 28]: Loop Invariant [2022-11-25 22:42:14,858 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,858 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,859 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,859 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,859 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,860 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: e == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(\old(e) == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) && ((!(\old(m) == 0bv32) || (m == 0bv32 && __retres4 == 0bv32)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(\old(e) == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) - InvariantResult [Line: 312]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant [2022-11-25 22:42:14,860 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,860 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,861 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,861 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,861 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,861 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: e == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(\old(e) == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) && (!(\old(m) == 0bv32) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(\old(e) == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) - InvariantResult [Line: 57]: Loop Invariant [2022-11-25 22:42:14,862 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,862 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,862 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,863 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,863 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-25 22:42:14,863 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: e == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(\old(e) == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) && (!(\old(m) == 0bv32) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(\old(e) == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 225]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-25 22:42:14,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28e27bb6-23ed-41a6-857d-37e6dc5f6f22/bin/utaipan-ByfvJB40ur/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