./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba --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 dd739e073fd22ceb2879e867de327b334b7eea402e53d4a8f9e32eed7e4110d8 --- 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-b5237d8 [2022-11-22 01:11:36,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:11:36,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:11:36,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:11:36,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:11:36,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:11:36,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:11:36,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:11:36,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:11:36,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:11:36,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:11:36,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:11:36,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:11:36,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:11:36,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:11:36,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:11:36,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:11:36,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:11:36,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:11:36,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:11:36,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:11:36,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:11:36,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:11:36,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:11:36,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:11:36,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:11:36,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:11:36,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:11:36,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:11:36,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:11:36,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:11:36,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:11:36,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:11:36,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:11:36,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:11:36,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:11:36,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:11:36,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:11:36,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:11:36,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:11:36,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:11:36,461 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 01:11:36,517 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:11:36,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:11:36,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:11:36,518 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:11:36,527 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:11:36,527 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:11:36,528 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:11:36,528 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:11:36,528 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:11:36,528 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:11:36,530 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:11:36,530 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:11:36,530 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:11:36,530 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:11:36,531 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:11:36,531 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:11:36,531 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:11:36,532 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:11:36,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:11:36,533 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:11:36,533 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:11:36,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:11:36,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:11:36,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:11:36,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:11:36,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:11:36,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:11:36,536 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:11:36,536 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:11:36,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:11:36,537 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:11:36,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:11:36,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:11:36,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:11:36,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:11:36,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:11:36,540 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:11:36,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:11:36,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:11:36,540 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:11:36,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:11:36,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:11:36,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:11:36,541 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_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd739e073fd22ceb2879e867de327b334b7eea402e53d4a8f9e32eed7e4110d8 [2022-11-22 01:11:36,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:11:36,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:11:36,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:11:36,891 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:11:36,891 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:11:36,893 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2022-11-22 01:11:40,234 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:11:40,540 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:11:40,541 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2022-11-22 01:11:40,549 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/data/700f0ca3d/69b2f63c5db74e06964503ba89301183/FLAG82a2e62a0 [2022-11-22 01:11:40,575 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/data/700f0ca3d/69b2f63c5db74e06964503ba89301183 [2022-11-22 01:11:40,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:11:40,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:11:40,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:11:40,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:11:40,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:11:40,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:11:40" (1/1) ... [2022-11-22 01:11:40,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@563187d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:40, skipping insertion in model container [2022-11-22 01:11:40,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:11:40" (1/1) ... [2022-11-22 01:11:40,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:11:40,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:11:40,805 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_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c[727,740] [2022-11-22 01:11:40,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:11:40,926 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:11:40,960 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_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c[727,740] [2022-11-22 01:11:41,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:11:41,037 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:11:41,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:41 WrapperNode [2022-11-22 01:11:41,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:11:41,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:11:41,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:11:41,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:11:41,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:41" (1/1) ... [2022-11-22 01:11:41,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:41" (1/1) ... [2022-11-22 01:11:41,119 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 180 [2022-11-22 01:11:41,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:11:41,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:11:41,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:11:41,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:11:41,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:41" (1/1) ... [2022-11-22 01:11:41,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:41" (1/1) ... [2022-11-22 01:11:41,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:41" (1/1) ... [2022-11-22 01:11:41,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:41" (1/1) ... [2022-11-22 01:11:41,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:41" (1/1) ... [2022-11-22 01:11:41,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:41" (1/1) ... [2022-11-22 01:11:41,172 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:41" (1/1) ... [2022-11-22 01:11:41,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:41" (1/1) ... [2022-11-22 01:11:41,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:11:41,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:11:41,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:11:41,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:11:41,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:41" (1/1) ... [2022-11-22 01:11:41,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:11:41,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:11:41,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:11:41,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:11:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:11:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:11:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-22 01:11:41,285 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-22 01:11:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:11:41,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:11:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 01:11:41,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 01:11:41,400 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:11:41,403 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:11:41,992 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:11:42,363 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:11:42,363 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:11:42,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:11:42 BoogieIcfgContainer [2022-11-22 01:11:42,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:11:42,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:11:42,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:11:42,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:11:42,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:11:40" (1/3) ... [2022-11-22 01:11:42,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a90473c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:11:42, skipping insertion in model container [2022-11-22 01:11:42,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:41" (2/3) ... [2022-11-22 01:11:42,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a90473c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:11:42, skipping insertion in model container [2022-11-22 01:11:42,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:11:42" (3/3) ... [2022-11-22 01:11:42,385 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_5.c.cil.c [2022-11-22 01:11:42,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:11:42,409 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-22 01:11:42,484 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:11:42,492 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;@4697db61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:11:42,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-22 01:11:42,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 49 states have (on average 1.7551020408163265) internal successors, (86), 72 states have internal predecessors, (86), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 01:11:42,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:11:42,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:42,512 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:42,513 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:11:42,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:42,520 INFO L85 PathProgramCache]: Analyzing trace with hash -755643358, now seen corresponding path program 1 times [2022-11-22 01:11:42,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:42,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100940077] [2022-11-22 01:11:42,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:42,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:42,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:11:42,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:42,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100940077] [2022-11-22 01:11:42,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100940077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:42,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:42,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:11:42,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342385564] [2022-11-22 01:11:42,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:42,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 01:11:42,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:42,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 01:11:42,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:11:42,832 INFO L87 Difference]: Start difference. First operand has 79 states, 49 states have (on average 1.7551020408163265) internal successors, (86), 72 states have internal predecessors, (86), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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) [2022-11-22 01:11:42,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:42,910 INFO L93 Difference]: Finished difference Result 154 states and 193 transitions. [2022-11-22 01:11:42,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 01:11:42,914 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 [2022-11-22 01:11:42,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:42,924 INFO L225 Difference]: With dead ends: 154 [2022-11-22 01:11:42,924 INFO L226 Difference]: Without dead ends: 70 [2022-11-22 01:11:42,930 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 [2022-11-22 01:11:42,938 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:42,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:11:42,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-22 01:11:43,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-22 01:11:43,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 45 states have (on average 1.5777777777777777) internal successors, (71), 64 states have internal predecessors, (71), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:11:43,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 79 transitions. [2022-11-22 01:11:43,030 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 79 transitions. Word has length 8 [2022-11-22 01:11:43,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:43,032 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 79 transitions. [2022-11-22 01:11:43,033 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) [2022-11-22 01:11:43,033 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions. [2022-11-22 01:11:43,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:11:43,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:43,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:43,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:11:43,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:11:43,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:43,039 INFO L85 PathProgramCache]: Analyzing trace with hash -756843454, now seen corresponding path program 1 times [2022-11-22 01:11:43,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:43,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099847617] [2022-11-22 01:11:43,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:43,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:43,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:11:43,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:43,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099847617] [2022-11-22 01:11:43,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099847617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:43,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:43,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:11:43,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724130141] [2022-11-22 01:11:43,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:43,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:11:43,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:43,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:11:43,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:11:43,186 INFO L87 Difference]: Start difference. First operand 70 states and 79 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) [2022-11-22 01:11:43,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:43,335 INFO L93 Difference]: Finished difference Result 182 states and 216 transitions. [2022-11-22 01:11:43,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:11:43,336 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 [2022-11-22 01:11:43,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:43,339 INFO L225 Difference]: With dead ends: 182 [2022-11-22 01:11:43,340 INFO L226 Difference]: Without dead ends: 114 [2022-11-22 01:11:43,341 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 [2022-11-22 01:11:43,342 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 61 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:43,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 169 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:11:43,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-11-22 01:11:43,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 103. [2022-11-22 01:11:43,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 77 states have (on average 1.5324675324675325) internal successors, (118), 96 states have internal predecessors, (118), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:11:43,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 126 transitions. [2022-11-22 01:11:43,362 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 126 transitions. Word has length 8 [2022-11-22 01:11:43,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:43,363 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 126 transitions. [2022-11-22 01:11:43,363 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) [2022-11-22 01:11:43,363 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 126 transitions. [2022-11-22 01:11:43,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:11:43,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:43,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:43,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:11:43,365 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:11:43,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:43,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1089068000, now seen corresponding path program 1 times [2022-11-22 01:11:43,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:43,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431889699] [2022-11-22 01:11:43,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:43,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:43,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:11:43,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:43,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431889699] [2022-11-22 01:11:43,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431889699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:43,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:43,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:11:43,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199284291] [2022-11-22 01:11:43,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:43,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:11:43,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:43,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:11:43,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:11:43,612 INFO L87 Difference]: Start difference. First operand 103 states and 126 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-22 01:11:43,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:43,778 INFO L93 Difference]: Finished difference Result 208 states and 254 transitions. [2022-11-22 01:11:43,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:11:43,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 11 [2022-11-22 01:11:43,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:43,780 INFO L225 Difference]: With dead ends: 208 [2022-11-22 01:11:43,780 INFO L226 Difference]: Without dead ends: 107 [2022-11-22 01:11:43,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:11:43,783 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 5 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:43,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 189 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:11:43,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-22 01:11:43,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-11-22 01:11:43,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 80 states have (on average 1.5125) internal successors, (121), 99 states have internal predecessors, (121), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:11:43,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 129 transitions. [2022-11-22 01:11:43,826 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 129 transitions. Word has length 11 [2022-11-22 01:11:43,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:43,827 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 129 transitions. [2022-11-22 01:11:43,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-22 01:11:43,828 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 129 transitions. [2022-11-22 01:11:43,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 01:11:43,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:43,830 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:43,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:11:43,831 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:11:43,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:43,833 INFO L85 PathProgramCache]: Analyzing trace with hash -255319649, now seen corresponding path program 1 times [2022-11-22 01:11:43,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:43,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257244875] [2022-11-22 01:11:43,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:43,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:44,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:11:44,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:44,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257244875] [2022-11-22 01:11:44,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257244875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:44,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:44,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:11:44,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656135132] [2022-11-22 01:11:44,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:44,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:11:44,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:44,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:11:44,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:11:44,071 INFO L87 Difference]: Start difference. First operand 107 states and 129 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-11-22 01:11:44,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:44,173 INFO L93 Difference]: Finished difference Result 186 states and 213 transitions. [2022-11-22 01:11:44,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:11:44,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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 17 [2022-11-22 01:11:44,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:44,177 INFO L225 Difference]: With dead ends: 186 [2022-11-22 01:11:44,177 INFO L226 Difference]: Without dead ends: 99 [2022-11-22 01:11:44,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:11:44,191 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 30 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:44,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 188 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:11:44,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-22 01:11:44,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2022-11-22 01:11:44,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 66 states have (on average 1.5151515151515151) internal successors, (100), 85 states have internal predecessors, (100), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:11:44,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 108 transitions. [2022-11-22 01:11:44,201 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 108 transitions. Word has length 17 [2022-11-22 01:11:44,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:44,201 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 108 transitions. [2022-11-22 01:11:44,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-11-22 01:11:44,202 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 108 transitions. [2022-11-22 01:11:44,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 01:11:44,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:44,208 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:44,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:11:44,208 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:11:44,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:44,209 INFO L85 PathProgramCache]: Analyzing trace with hash -2062533901, now seen corresponding path program 1 times [2022-11-22 01:11:44,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:44,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730409650] [2022-11-22 01:11:44,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:44,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:44,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:11:44,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:44,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730409650] [2022-11-22 01:11:44,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730409650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:44,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:44,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:11:44,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326795852] [2022-11-22 01:11:44,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:44,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:11:44,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:44,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:11:44,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:11:44,340 INFO L87 Difference]: Start difference. First operand 93 states and 108 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-22 01:11:44,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:44,495 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2022-11-22 01:11:44,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:11:44,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 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 [2022-11-22 01:11:44,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:44,502 INFO L225 Difference]: With dead ends: 101 [2022-11-22 01:11:44,502 INFO L226 Difference]: Without dead ends: 98 [2022-11-22 01:11:44,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:11:44,507 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 43 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:44,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 224 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:11:44,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-22 01:11:44,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 93. [2022-11-22 01:11:44,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 66 states have (on average 1.4696969696969697) internal successors, (97), 85 states have internal predecessors, (97), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:11:44,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2022-11-22 01:11:44,527 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 18 [2022-11-22 01:11:44,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:44,528 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2022-11-22 01:11:44,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-22 01:11:44,528 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2022-11-22 01:11:44,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:11:44,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:44,529 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:44,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:11:44,529 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:11:44,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:44,530 INFO L85 PathProgramCache]: Analyzing trace with hash 485958621, now seen corresponding path program 1 times [2022-11-22 01:11:44,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:44,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755986589] [2022-11-22 01:11:44,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:44,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:44,615 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:11:44,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:44,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755986589] [2022-11-22 01:11:44,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755986589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:44,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:44,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:11:44,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580583309] [2022-11-22 01:11:44,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:44,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:11:44,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:44,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:11:44,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:11:44,621 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-22 01:11:44,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:44,765 INFO L93 Difference]: Finished difference Result 178 states and 200 transitions. [2022-11-22 01:11:44,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:11:44,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 19 [2022-11-22 01:11:44,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:44,767 INFO L225 Difference]: With dead ends: 178 [2022-11-22 01:11:44,767 INFO L226 Difference]: Without dead ends: 110 [2022-11-22 01:11:44,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:11:44,769 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 53 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:44,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 228 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:11:44,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-11-22 01:11:44,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 103. [2022-11-22 01:11:44,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 95 states have internal predecessors, (108), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:11:44,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 116 transitions. [2022-11-22 01:11:44,788 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 116 transitions. Word has length 19 [2022-11-22 01:11:44,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:44,788 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 116 transitions. [2022-11-22 01:11:44,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-22 01:11:44,792 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 116 transitions. [2022-11-22 01:11:44,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-22 01:11:44,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:44,793 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:44,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:11:44,794 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:11:44,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:44,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1332749365, now seen corresponding path program 1 times [2022-11-22 01:11:44,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:44,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471959905] [2022-11-22 01:11:44,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:44,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:44,885 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:11:44,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:44,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471959905] [2022-11-22 01:11:44,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471959905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:44,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:44,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:11:44,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220712943] [2022-11-22 01:11:44,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:44,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:11:44,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:44,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:11:44,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:11:44,888 INFO L87 Difference]: Start difference. First operand 103 states and 116 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-22 01:11:44,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:44,986 INFO L93 Difference]: Finished difference Result 116 states and 134 transitions. [2022-11-22 01:11:44,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:11:44,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 24 [2022-11-22 01:11:44,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:44,988 INFO L225 Difference]: With dead ends: 116 [2022-11-22 01:11:44,988 INFO L226 Difference]: Without dead ends: 113 [2022-11-22 01:11:44,988 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 [2022-11-22 01:11:44,989 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 10 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:44,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 168 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:11:44,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-22 01:11:44,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 100. [2022-11-22 01:11:45,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 74 states have (on average 1.4054054054054055) internal successors, (104), 92 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:11:45,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 112 transitions. [2022-11-22 01:11:45,003 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 112 transitions. Word has length 24 [2022-11-22 01:11:45,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:45,003 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 112 transitions. [2022-11-22 01:11:45,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-22 01:11:45,004 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 112 transitions. [2022-11-22 01:11:45,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-22 01:11:45,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:45,009 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:45,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:11:45,010 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:11:45,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:45,011 INFO L85 PathProgramCache]: Analyzing trace with hash -297748208, now seen corresponding path program 1 times [2022-11-22 01:11:45,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:45,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069817253] [2022-11-22 01:11:45,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:45,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:45,092 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:11:45,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:45,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069817253] [2022-11-22 01:11:45,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069817253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:45,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:45,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:11:45,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146709194] [2022-11-22 01:11:45,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:45,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:11:45,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:45,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:11:45,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:11:45,095 INFO L87 Difference]: Start difference. First operand 100 states and 112 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-11-22 01:11:45,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:45,232 INFO L93 Difference]: Finished difference Result 144 states and 167 transitions. [2022-11-22 01:11:45,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:11:45,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 31 [2022-11-22 01:11:45,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:45,234 INFO L225 Difference]: With dead ends: 144 [2022-11-22 01:11:45,234 INFO L226 Difference]: Without dead ends: 141 [2022-11-22 01:11:45,234 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 [2022-11-22 01:11:45,235 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 104 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:45,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 169 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:11:45,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-22 01:11:45,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 128. [2022-11-22 01:11:45,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 102 states have (on average 1.411764705882353) internal successors, (144), 119 states have internal predecessors, (144), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:11:45,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 152 transitions. [2022-11-22 01:11:45,244 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 152 transitions. Word has length 31 [2022-11-22 01:11:45,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:45,245 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 152 transitions. [2022-11-22 01:11:45,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-11-22 01:11:45,245 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 152 transitions. [2022-11-22 01:11:45,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-22 01:11:45,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:45,246 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:45,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:11:45,247 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:11:45,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:45,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1780736456, now seen corresponding path program 1 times [2022-11-22 01:11:45,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:45,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339357091] [2022-11-22 01:11:45,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:45,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:45,314 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:11:45,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:45,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339357091] [2022-11-22 01:11:45,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339357091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:45,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:45,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:11:45,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920070526] [2022-11-22 01:11:45,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:45,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:11:45,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:45,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:11:45,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:11:45,316 INFO L87 Difference]: Start difference. First operand 128 states and 152 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2022-11-22 01:11:45,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:45,463 INFO L93 Difference]: Finished difference Result 139 states and 159 transitions. [2022-11-22 01:11:45,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:11:45,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 33 [2022-11-22 01:11:45,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:45,465 INFO L225 Difference]: With dead ends: 139 [2022-11-22 01:11:45,465 INFO L226 Difference]: Without dead ends: 136 [2022-11-22 01:11:45,465 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 [2022-11-22 01:11:45,466 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 85 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:45,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 180 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:11:45,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-22 01:11:45,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 123. [2022-11-22 01:11:45,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 97 states have (on average 1.3917525773195876) internal successors, (135), 114 states have internal predecessors, (135), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:11:45,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2022-11-22 01:11:45,477 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 33 [2022-11-22 01:11:45,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:45,477 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2022-11-22 01:11:45,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2022-11-22 01:11:45,478 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2022-11-22 01:11:45,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-22 01:11:45,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:45,479 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:11:45,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:11:45,479 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:11:45,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:45,480 INFO L85 PathProgramCache]: Analyzing trace with hash 641535122, now seen corresponding path program 1 times [2022-11-22 01:11:45,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:45,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495878824] [2022-11-22 01:11:45,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:45,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:45,646 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:45,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:45,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495878824] [2022-11-22 01:11:45,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495878824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:45,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:45,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:11:45,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926870313] [2022-11-22 01:11:45,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:45,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:11:45,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:45,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:11:45,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:11:45,649 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:11:45,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:45,785 INFO L93 Difference]: Finished difference Result 284 states and 331 transitions. [2022-11-22 01:11:45,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:11:45,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2022-11-22 01:11:45,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:45,788 INFO L225 Difference]: With dead ends: 284 [2022-11-22 01:11:45,788 INFO L226 Difference]: Without dead ends: 184 [2022-11-22 01:11:45,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:11:45,789 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 55 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:45,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 194 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:11:45,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-22 01:11:45,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 123. [2022-11-22 01:11:45,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 114 states have internal predecessors, (134), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:11:45,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2022-11-22 01:11:45,808 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 34 [2022-11-22 01:11:45,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:45,808 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2022-11-22 01:11:45,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:11:45,809 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2022-11-22 01:11:45,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-22 01:11:45,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:45,813 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:11:45,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:11:45,814 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:11:45,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:45,815 INFO L85 PathProgramCache]: Analyzing trace with hash -618178752, now seen corresponding path program 1 times [2022-11-22 01:11:45,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:45,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150838243] [2022-11-22 01:11:45,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:45,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:45,972 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:45,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:45,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150838243] [2022-11-22 01:11:45,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150838243] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:45,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346617692] [2022-11-22 01:11:45,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:45,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:45,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:11:45,977 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:11:45,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:11:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:46,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:11:46,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:11:46,218 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:46,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:11:46,416 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:46,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346617692] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:11:46,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1513384664] [2022-11-22 01:11:46,454 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-22 01:11:46,454 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:11:46,464 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:11:46,470 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:11:46,471 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:11:46,919 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 22 for LOIs [2022-11-22 01:11:47,113 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:11:48,294 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3598#(and (<= |base2flt_#in~e| 127) (= base2flt_~e |base2flt_#in~e|) (not (<= 33554432 (mod |base2flt_#in~m| 4294967296))) (or (<= 0 base2flt_~m) (< |base2flt_#in~m| 0)) (<= 16777216 (mod |base2flt_#in~m| 4294967296)) (= |#NULL.offset| 0) (not (<= (+ (* 16777216 base2flt_~e) 1) 0)) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:11:48,294 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:11:48,294 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:11:48,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2022-11-22 01:11:48,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426841675] [2022-11-22 01:11:48,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:11:48,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 01:11:48,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:48,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 01:11:48,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=738, Unknown=0, NotChecked=0, Total=930 [2022-11-22 01:11:48,296 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-22 01:11:48,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:48,904 INFO L93 Difference]: Finished difference Result 463 states and 545 transitions. [2022-11-22 01:11:48,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-22 01:11:48,905 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 36 [2022-11-22 01:11:48,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:48,915 INFO L225 Difference]: With dead ends: 463 [2022-11-22 01:11:48,915 INFO L226 Difference]: Without dead ends: 366 [2022-11-22 01:11:48,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 86 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=362, Invalid=1278, Unknown=0, NotChecked=0, Total=1640 [2022-11-22 01:11:48,917 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 182 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:48,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 313 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:11:48,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-11-22 01:11:48,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 143. [2022-11-22 01:11:48,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 117 states have (on average 1.3504273504273505) internal successors, (158), 134 states have internal predecessors, (158), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:11:48,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 166 transitions. [2022-11-22 01:11:48,946 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 166 transitions. Word has length 36 [2022-11-22 01:11:48,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:48,947 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 166 transitions. [2022-11-22 01:11:48,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-22 01:11:48,947 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 166 transitions. [2022-11-22 01:11:48,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-22 01:11:48,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:48,950 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:48,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 01:11:49,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:49,157 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:11:49,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:49,158 INFO L85 PathProgramCache]: Analyzing trace with hash 482890042, now seen corresponding path program 1 times [2022-11-22 01:11:49,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:49,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216418600] [2022-11-22 01:11:49,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:49,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:49,326 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:49,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:49,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216418600] [2022-11-22 01:11:49,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216418600] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:49,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323150992] [2022-11-22 01:11:49,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:49,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:49,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:11:49,328 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:11:49,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:11:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:49,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:11:49,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:11:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:49,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:11:49,677 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:49,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323150992] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:11:49,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [849784564] [2022-11-22 01:11:49,684 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-22 01:11:49,685 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:11:49,685 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:11:49,685 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:11:49,685 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:11:50,019 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 22 for LOIs [2022-11-22 01:11:50,248 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:11:50,994 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4625#(and (<= |base2flt_#in~e| 127) (<= 0 (+ 128 |base2flt_#in~e|)) (= |#NULL.offset| 0) (<= base2flt_~e 127) (not (<= (+ (* 16777216 base2flt_~e) 1) 0)) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:11:50,994 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:11:50,994 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:11:50,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-11-22 01:11:50,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985573328] [2022-11-22 01:11:50,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:11:50,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 01:11:50,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:50,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 01:11:50,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2022-11-22 01:11:50,997 INFO L87 Difference]: Start difference. First operand 143 states and 166 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:11:51,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:51,534 INFO L93 Difference]: Finished difference Result 380 states and 445 transitions. [2022-11-22 01:11:51,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 01:11:51,535 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-11-22 01:11:51,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:51,536 INFO L225 Difference]: With dead ends: 380 [2022-11-22 01:11:51,537 INFO L226 Difference]: Without dead ends: 273 [2022-11-22 01:11:51,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 100 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2022-11-22 01:11:51,538 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 147 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:51,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 364 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:11:51,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-11-22 01:11:51,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 143. [2022-11-22 01:11:51,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 134 states have internal predecessors, (154), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:11:51,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 162 transitions. [2022-11-22 01:11:51,559 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 162 transitions. Word has length 39 [2022-11-22 01:11:51,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:51,560 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 162 transitions. [2022-11-22 01:11:51,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:11:51,560 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 162 transitions. [2022-11-22 01:11:51,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-22 01:11:51,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:51,561 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:51,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:11:51,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 01:11:51,768 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:11:51,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:51,769 INFO L85 PathProgramCache]: Analyzing trace with hash 555542848, now seen corresponding path program 2 times [2022-11-22 01:11:51,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:51,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895556014] [2022-11-22 01:11:51,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:51,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:52,098 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:52,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:52,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895556014] [2022-11-22 01:11:52,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895556014] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:52,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522448030] [2022-11-22 01:11:52,100 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:11:52,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:52,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:11:52,101 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:11:52,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:11:52,217 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-22 01:11:52,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:11:52,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:11:52,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:11:52,360 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:52,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:11:52,703 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:52,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522448030] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:11:52,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1214400784] [2022-11-22 01:11:52,707 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-22 01:11:52,707 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:11:52,707 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:11:52,707 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:11:52,708 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:11:53,262 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 22 for LOIs [2022-11-22 01:11:53,422 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:11:54,860 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5644#(and (<= |base2flt_#in~e| 127) (= base2flt_~e |base2flt_#in~e|) (not (<= 33554432 (mod |base2flt_#in~m| 4294967296))) (or (<= 0 base2flt_~m) (< |base2flt_#in~m| 0)) (<= 16777216 (mod |base2flt_#in~m| 4294967296)) (= |#NULL.offset| 0) (not (<= (+ (* 16777216 base2flt_~e) 1) 0)) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:11:54,860 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:11:54,861 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:11:54,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-11-22 01:11:54,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618123414] [2022-11-22 01:11:54,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:11:54,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-22 01:11:54,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:54,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-22 01:11:54,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=428, Invalid=1378, Unknown=0, NotChecked=0, Total=1806 [2022-11-22 01:11:54,863 INFO L87 Difference]: Start difference. First operand 143 states and 162 transitions. Second operand has 26 states, 26 states have (on average 4.730769230769231) internal successors, (123), 26 states have internal predecessors, (123), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-22 01:11:56,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:56,012 INFO L93 Difference]: Finished difference Result 751 states and 893 transitions. [2022-11-22 01:11:56,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-22 01:11:56,013 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.730769230769231) internal successors, (123), 26 states have internal predecessors, (123), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 56 [2022-11-22 01:11:56,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:56,017 INFO L225 Difference]: With dead ends: 751 [2022-11-22 01:11:56,017 INFO L226 Difference]: Without dead ends: 654 [2022-11-22 01:11:56,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 138 SyntacticMatches, 8 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1863 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=980, Invalid=2680, Unknown=0, NotChecked=0, Total=3660 [2022-11-22 01:11:56,021 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 591 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:56,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 311 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:11:56,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2022-11-22 01:11:56,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 183. [2022-11-22 01:11:56,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 157 states have (on average 1.286624203821656) internal successors, (202), 174 states have internal predecessors, (202), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:11:56,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 210 transitions. [2022-11-22 01:11:56,053 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 210 transitions. Word has length 56 [2022-11-22 01:11:56,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:56,053 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 210 transitions. [2022-11-22 01:11:56,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.730769230769231) internal successors, (123), 26 states have internal predecessors, (123), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-22 01:11:56,054 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 210 transitions. [2022-11-22 01:11:56,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-22 01:11:56,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:56,055 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:56,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:11:56,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-22 01:11:56,262 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:11:56,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:56,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1494318906, now seen corresponding path program 2 times [2022-11-22 01:11:56,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:56,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603948135] [2022-11-22 01:11:56,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:56,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:56,604 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 12 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:56,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:56,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603948135] [2022-11-22 01:11:56,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603948135] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:56,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166676894] [2022-11-22 01:11:56,606 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:11:56,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:56,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:11:56,607 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:11:56,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:11:56,771 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-11-22 01:11:56,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:11:56,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-22 01:11:56,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:11:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 12 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:57,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:11:57,496 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 12 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:57,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166676894] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:11:57,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [276112466] [2022-11-22 01:11:57,504 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-22 01:11:57,504 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:11:57,505 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:11:57,505 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:11:57,505 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:11:57,810 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 22 for LOIs [2022-11-22 01:11:57,990 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:11:59,217 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7231#(and (<= |base2flt_#in~e| 127) (<= 0 (+ 128 |base2flt_#in~e|)) (= |#NULL.offset| 0) (<= base2flt_~e 127) (not (<= (+ (* 16777216 base2flt_~e) 1) 0)) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:11:59,218 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:11:59,218 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:11:59,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2022-11-22 01:11:59,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846858543] [2022-11-22 01:11:59,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:11:59,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-22 01:11:59,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:59,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-22 01:11:59,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=1050, Unknown=0, NotChecked=0, Total=1332 [2022-11-22 01:11:59,220 INFO L87 Difference]: Start difference. First operand 183 states and 210 transitions. Second operand has 25 states, 25 states have (on average 5.04) internal successors, (126), 25 states have internal predecessors, (126), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:12:19,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:12:19,237 INFO L93 Difference]: Finished difference Result 548 states and 649 transitions. [2022-11-22 01:12:19,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-22 01:12:19,239 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.04) internal successors, (126), 25 states have internal predecessors, (126), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 59 [2022-11-22 01:12:19,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:12:19,241 INFO L225 Difference]: With dead ends: 548 [2022-11-22 01:12:19,241 INFO L226 Difference]: Without dead ends: 441 [2022-11-22 01:12:19,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 152 SyntacticMatches, 6 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 873 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=611, Invalid=1836, Unknown=3, NotChecked=0, Total=2450 [2022-11-22 01:12:19,243 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 400 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:12:19,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 917 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:12:19,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-11-22 01:12:19,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 183. [2022-11-22 01:12:19,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 157 states have (on average 1.2356687898089171) internal successors, (194), 174 states have internal predecessors, (194), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:12:19,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 202 transitions. [2022-11-22 01:12:19,268 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 202 transitions. Word has length 59 [2022-11-22 01:12:19,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:12:19,268 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 202 transitions. [2022-11-22 01:12:19,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.04) internal successors, (126), 25 states have internal predecessors, (126), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:12:19,269 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 202 transitions. [2022-11-22 01:12:19,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-22 01:12:19,270 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:12:19,270 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:12:19,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:12:19,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:12:19,478 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:12:19,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:12:19,478 INFO L85 PathProgramCache]: Analyzing trace with hash -602862272, now seen corresponding path program 3 times [2022-11-22 01:12:19,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:12:19,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988534047] [2022-11-22 01:12:19,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:12:19,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:12:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:12:20,033 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 8 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:12:20,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:12:20,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988534047] [2022-11-22 01:12:20,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988534047] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:12:20,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070806634] [2022-11-22 01:12:20,034 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:12:20,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:12:20,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:12:20,035 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:12:20,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:12:20,148 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:12:20,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:12:20,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-22 01:12:20,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:12:20,469 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 8 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:12:20,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:12:21,468 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 8 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:12:21,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070806634] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:12:21,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [544686121] [2022-11-22 01:12:21,470 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-22 01:12:21,470 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:12:21,471 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:12:21,471 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:12:21,471 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:12:21,672 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 22 for LOIs [2022-11-22 01:12:21,775 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:12:23,303 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8798#(and (<= |base2flt_#in~e| 127) (= base2flt_~e |base2flt_#in~e|) (not (<= 33554432 (mod |base2flt_#in~m| 4294967296))) (or (<= 0 base2flt_~m) (< |base2flt_#in~m| 0)) (<= 16777216 (mod |base2flt_#in~m| 4294967296)) (= |#NULL.offset| 0) (not (<= (+ (* 16777216 base2flt_~e) 1) 0)) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:12:23,303 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:12:23,303 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:12:23,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2022-11-22 01:12:23,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089666309] [2022-11-22 01:12:23,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:12:23,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-22 01:12:23,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:12:23,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-22 01:12:23,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1188, Invalid=3234, Unknown=0, NotChecked=0, Total=4422 [2022-11-22 01:12:23,307 INFO L87 Difference]: Start difference. First operand 183 states and 202 transitions. Second operand has 50 states, 50 states have (on average 4.86) internal successors, (243), 50 states have internal predecessors, (243), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-22 01:12:25,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:12:25,539 INFO L93 Difference]: Finished difference Result 1327 states and 1589 transitions. [2022-11-22 01:12:25,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-11-22 01:12:25,540 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 4.86) internal successors, (243), 50 states have internal predecessors, (243), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 96 [2022-11-22 01:12:25,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:12:25,544 INFO L225 Difference]: With dead ends: 1327 [2022-11-22 01:12:25,545 INFO L226 Difference]: Without dead ends: 1230 [2022-11-22 01:12:25,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 242 SyntacticMatches, 16 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5227 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=3128, Invalid=6972, Unknown=0, NotChecked=0, Total=10100 [2022-11-22 01:12:25,548 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 991 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:12:25,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 480 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:12:25,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2022-11-22 01:12:25,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 263. [2022-11-22 01:12:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 237 states have (on average 1.2236286919831223) internal successors, (290), 254 states have internal predecessors, (290), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:12:25,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 298 transitions. [2022-11-22 01:12:25,592 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 298 transitions. Word has length 96 [2022-11-22 01:12:25,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:12:25,592 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 298 transitions. [2022-11-22 01:12:25,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 4.86) internal successors, (243), 50 states have internal predecessors, (243), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-22 01:12:25,593 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 298 transitions. [2022-11-22 01:12:25,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-22 01:12:25,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:12:25,594 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:12:25,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:12:25,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-22 01:12:25,800 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:12:25,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:12:25,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1509612346, now seen corresponding path program 3 times [2022-11-22 01:12:25,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:12:25,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462877532] [2022-11-22 01:12:25,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:12:25,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:12:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:12:26,423 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 12 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:12:26,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:12:26,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462877532] [2022-11-22 01:12:26,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462877532] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:12:26,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910855554] [2022-11-22 01:12:26,424 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:12:26,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:12:26,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:12:26,431 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:12:26,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:12:26,574 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:12:26,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:12:26,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-22 01:12:26,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:12:27,175 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 12 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:12:27,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:12:28,166 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 12 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:12:28,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910855554] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:12:28,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [269986192] [2022-11-22 01:12:28,169 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-22 01:12:28,169 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:12:28,169 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:12:28,169 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:12:28,170 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:12:28,353 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 22 for LOIs [2022-11-22 01:12:28,490 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:12:30,828 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11505#(and (<= |base2flt_#in~e| 127) (<= 0 (+ 128 |base2flt_#in~e|)) (= |#NULL.offset| 0) (<= base2flt_~e 127) (not (<= (+ (* 16777216 base2flt_~e) 1) 0)) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:12:30,828 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:12:30,832 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:12:30,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 49 [2022-11-22 01:12:30,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683283448] [2022-11-22 01:12:30,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:12:30,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-22 01:12:30,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:12:30,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-22 01:12:30,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=740, Invalid=2920, Unknown=0, NotChecked=0, Total=3660 [2022-11-22 01:12:30,836 INFO L87 Difference]: Start difference. First operand 263 states and 298 transitions. Second operand has 49 states, 49 states have (on average 5.020408163265306) internal successors, (246), 49 states have internal predecessors, (246), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:13:12,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:13:12,006 INFO L93 Difference]: Finished difference Result 794 states and 943 transitions. [2022-11-22 01:13:12,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-22 01:13:12,007 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 5.020408163265306) internal successors, (246), 49 states have internal predecessors, (246), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 99 [2022-11-22 01:13:12,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:13:12,011 INFO L225 Difference]: With dead ends: 794 [2022-11-22 01:13:12,011 INFO L226 Difference]: Without dead ends: 687 [2022-11-22 01:13:12,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 242 SyntacticMatches, 22 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2737 ImplicationChecksByTransitivity, 42.5s TimeCoverageRelationStatistics Valid=1720, Invalid=5244, Unknown=8, NotChecked=0, Total=6972 [2022-11-22 01:13:12,014 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 1432 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 2267 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 2215 SdHoareTripleChecker+Invalid, 2554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 2267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:13:12,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 2215 Invalid, 2554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 2267 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 01:13:12,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2022-11-22 01:13:12,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 263. [2022-11-22 01:13:12,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 237 states have (on average 1.1814345991561181) internal successors, (280), 254 states have internal predecessors, (280), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:13:12,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 288 transitions. [2022-11-22 01:13:12,057 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 288 transitions. Word has length 99 [2022-11-22 01:13:12,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:13:12,057 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 288 transitions. [2022-11-22 01:13:12,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 5.020408163265306) internal successors, (246), 49 states have internal predecessors, (246), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:13:12,058 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 288 transitions. [2022-11-22 01:13:12,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-22 01:13:12,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:13:12,059 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:13:12,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:13:12,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-22 01:13:12,263 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-22 01:13:12,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:13:12,263 INFO L85 PathProgramCache]: Analyzing trace with hash -367415750, now seen corresponding path program 4 times [2022-11-22 01:13:12,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:13:12,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182389219] [2022-11-22 01:13:12,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:13:12,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:13:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:13:12,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:13:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:13:12,387 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:13:12,388 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:13:12,389 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2022-11-22 01:13:12,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2022-11-22 01:13:12,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2022-11-22 01:13:12,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2022-11-22 01:13:12,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2022-11-22 01:13:12,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2022-11-22 01:13:12,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2022-11-22 01:13:12,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2022-11-22 01:13:12,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2022-11-22 01:13:12,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2022-11-22 01:13:12,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2022-11-22 01:13:12,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2022-11-22 01:13:12,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2022-11-22 01:13:12,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2022-11-22 01:13:12,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2022-11-22 01:13:12,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2022-11-22 01:13:12,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2022-11-22 01:13:12,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2022-11-22 01:13:12,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2022-11-22 01:13:12,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2022-11-22 01:13:12,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2022-11-22 01:13:12,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2022-11-22 01:13:12,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 01:13:12,399 INFO L444 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:13:12,402 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:13:12,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:13:12 BoogieIcfgContainer [2022-11-22 01:13:12,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:13:12,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:13:12,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:13:12,459 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:13:12,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:11:42" (3/4) ... [2022-11-22 01:13:12,463 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:13:12,463 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:13:12,463 INFO L158 Benchmark]: Toolchain (without parser) took 91884.25ms. Allocated memory was 127.9MB in the beginning and 226.5MB in the end (delta: 98.6MB). Free memory was 94.8MB in the beginning and 92.8MB in the end (delta: 2.0MB). Peak memory consumption was 104.3MB. Max. memory is 16.1GB. [2022-11-22 01:13:12,464 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 127.9MB. Free memory was 96.1MB in the beginning and 96.1MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:13:12,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.59ms. Allocated memory is still 127.9MB. Free memory was 94.8MB in the beginning and 81.2MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 01:13:12,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.15ms. Allocated memory is still 127.9MB. Free memory was 81.2MB in the beginning and 79.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:13:12,465 INFO L158 Benchmark]: Boogie Preprocessor took 55.16ms. Allocated memory is still 127.9MB. Free memory was 79.1MB in the beginning and 77.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:13:12,465 INFO L158 Benchmark]: RCFGBuilder took 1191.61ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 77.5MB in the beginning and 113.2MB in the end (delta: -35.6MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2022-11-22 01:13:12,465 INFO L158 Benchmark]: TraceAbstraction took 90083.58ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 113.2MB in the beginning and 92.8MB in the end (delta: 20.4MB). Peak memory consumption was 89.5MB. Max. memory is 16.1GB. [2022-11-22 01:13:12,466 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 226.5MB. Free memory was 92.8MB in the beginning and 92.8MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:13:12,467 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 127.9MB. Free memory was 96.1MB in the beginning and 96.1MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.59ms. Allocated memory is still 127.9MB. Free memory was 94.8MB in the beginning and 81.2MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.15ms. Allocated memory is still 127.9MB. Free memory was 81.2MB in the beginning and 79.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.16ms. Allocated memory is still 127.9MB. Free memory was 79.1MB in the beginning and 77.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1191.61ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 77.5MB in the beginning and 113.2MB in the end (delta: -35.6MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. * TraceAbstraction took 90083.58ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 113.2MB in the beginning and 92.8MB in the end (delta: 20.4MB). Peak memory consumption was 89.5MB. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 226.5MB. Free memory was 92.8MB in the beginning and 92.8MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. 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: 77]: 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 77, overapproximation of bitwiseAnd at line 76. Possible FailurePath: [L221] unsigned int a ; [L222] unsigned int ma = __VERIFIER_nondet_uint(); [L223] signed char ea = __VERIFIER_nondet_char(); [L224] unsigned int b ; [L225] unsigned int mb = __VERIFIER_nondet_uint(); [L226] signed char eb = __VERIFIER_nondet_char(); [L227] unsigned int r_mul ; [L228] unsigned int zero ; [L229] unsigned int one ; [L230] int sb ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; [L234] int __retres16 ; VAL [ea=0, eb=0] [L238] 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); [L238] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=0, eb=0] [L238] zero = base2flt(0, 0) [L239] CALL, EXPR base2flt(1, 0) VAL [\old(e)=0, \old(m)=1] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L35] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L47] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] EXPR (e + 128) << 24U [L77] res = m | (unsigned int )((e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=1, __retres4=1744830464, e=-24, m=0, res=1744830464] [L80] return (__retres4); [L239] RET, EXPR base2flt(1, 0) VAL [base2flt(1, 0)=1744830464, ea=0, eb=0, zero=0] [L239] one = base2flt(1, 0) [L240] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L77] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] - 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: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: 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, 79 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 89.9s, OverallIterations: 17, TraceHistogramMax: 24, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 67.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4195 SdHoareTripleChecker+Valid, 5.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4189 mSDsluCounter, 6387 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5348 mSDsCounter, 1035 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5360 IncrementalHoareTripleChecker+Invalid, 6395 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1035 mSolverCounterUnsat, 1039 mSDtfsCounter, 5360 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1433 GetRequests, 987 SyntacticMatches, 58 SemanticMatches, 388 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11745 ImplicationChecksByTransitivity, 71.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=263occurred in iteration=15, InterpolantAutomatonStates: 250, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 16 MinimizatonAttempts, 2602 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 1122 NumberOfCodeBlocks, 1122 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 1330 ConstructedInterpolants, 0 QuantifiedInterpolants, 7416 SizeOfPredicates, 6 NumberOfNonLiveVariables, 942 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 28 InterpolantComputations, 10 PerfectInterpolantSequences, 245/3587 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 01:13:12,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/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_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba --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 dd739e073fd22ceb2879e867de327b334b7eea402e53d4a8f9e32eed7e4110d8 --- 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-b5237d8 [2022-11-22 01:13:14,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:13:14,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:13:15,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:13:15,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:13:15,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:13:15,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:13:15,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:13:15,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:13:15,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:13:15,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:13:15,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:13:15,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:13:15,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:13:15,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:13:15,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:13:15,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:13:15,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:13:15,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:13:15,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:13:15,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:13:15,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:13:15,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:13:15,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:13:15,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:13:15,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:13:15,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:13:15,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:13:15,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:13:15,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:13:15,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:13:15,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:13:15,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:13:15,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:13:15,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:13:15,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:13:15,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:13:15,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:13:15,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:13:15,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:13:15,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:13:15,095 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2022-11-22 01:13:15,136 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:13:15,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:13:15,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:13:15,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:13:15,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:13:15,139 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:13:15,139 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:13:15,140 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:13:15,140 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:13:15,140 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:13:15,141 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:13:15,141 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:13:15,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:13:15,142 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:13:15,143 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:13:15,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:13:15,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:13:15,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:13:15,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:13:15,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:13:15,144 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:13:15,144 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:13:15,144 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:13:15,144 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:13:15,145 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:13:15,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:13:15,145 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:13:15,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:13:15,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:13:15,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:13:15,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:13:15,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:13:15,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:13:15,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:13:15,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:13:15,147 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:13:15,147 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:13:15,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:13:15,148 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:13:15,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:13:15,148 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_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd739e073fd22ceb2879e867de327b334b7eea402e53d4a8f9e32eed7e4110d8 [2022-11-22 01:13:15,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:13:15,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:13:15,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:13:15,604 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:13:15,606 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:13:15,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2022-11-22 01:13:18,705 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:13:18,958 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:13:18,959 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2022-11-22 01:13:18,967 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/data/1fc7a5457/7646a61decff4a79a95d8f4032d6e7d8/FLAGec8d88363 [2022-11-22 01:13:18,981 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/bin/utaipan-g80aRyZoba/data/1fc7a5457/7646a61decff4a79a95d8f4032d6e7d8 [2022-11-22 01:13:18,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:13:18,985 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:13:18,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:13:18,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:13:18,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:13:18,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:13:18" (1/1) ... [2022-11-22 01:13:18,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@604b4e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:13:18, skipping insertion in model container [2022-11-22 01:13:18,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:13:18" (1/1) ... [2022-11-22 01:13:19,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:13:19,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:13:19,156 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_c7a762db-9509-4d8a-85a7-4cc94b4fb9ee/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c[727,740] [2022-11-22 01:13:19,172 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOverflowCheckForBinaryBitwiseIntegerExpression(BitvectorTranslation.java:1570) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.addIntegerBoundsCheck(CExpressionTranslator.java:1060) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-22 01:13:19,182 INFO L158 Benchmark]: Toolchain (without parser) took 196.37ms. Allocated memory is still 71.3MB. Free memory was 49.2MB in the beginning and 39.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:13:19,186 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 71.3MB. Free memory was 48.6MB in the beginning and 48.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:13:19,187 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.17ms. Allocated memory is still 71.3MB. Free memory was 49.0MB in the beginning and 39.8MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:13:19,188 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 71.3MB. Free memory was 48.6MB in the beginning and 48.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.17ms. Allocated memory is still 71.3MB. Free memory was 49.0MB in the beginning and 39.8MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOverflowCheckForBinaryBitwiseIntegerExpression(BitvectorTranslation.java:1570) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented.