./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 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/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_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW --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-4e7fbc6 [2022-11-23 15:09:39,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:09:39,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:09:39,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:09:39,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:09:39,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:09:39,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:09:39,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:09:39,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:09:39,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:09:39,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:09:39,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:09:39,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:09:39,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:09:39,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:09:39,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:09:39,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:09:39,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:09:39,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:09:39,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:09:39,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:09:39,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:09:39,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:09:39,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:09:39,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:09:39,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:09:39,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:09:39,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:09:39,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:09:39,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:09:39,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:09:39,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:09:39,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:09:39,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:09:39,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:09:39,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:09:39,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:09:39,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:09:39,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:09:39,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:09:39,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:09:39,215 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 15:09:39,255 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:09:39,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:09:39,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:09:39,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:09:39,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:09:39,257 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:09:39,258 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:09:39,258 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:09:39,258 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:09:39,258 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:09:39,259 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:09:39,259 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:09:39,259 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:09:39,259 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:09:39,260 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:09:39,260 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:09:39,261 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:09:39,261 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:09:39,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:09:39,263 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:09:39,264 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:09:39,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:09:39,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:09:39,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:09:39,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:09:39,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:09:39,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:09:39,266 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:09:39,266 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:09:39,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:09:39,267 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:09:39,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:09:39,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:09:39,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:09:39,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:09:39,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:09:39,269 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:09:39,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:09:39,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:09:39,269 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:09:39,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:09:39,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:09:39,270 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:09:39,270 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_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd739e073fd22ceb2879e867de327b334b7eea402e53d4a8f9e32eed7e4110d8 [2022-11-23 15:09:39,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:09:39,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:09:39,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:09:39,624 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:09:39,625 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:09:39,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2022-11-23 15:09:42,730 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:09:42,967 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:09:42,973 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2022-11-23 15:09:42,983 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/data/593772bf0/53c635ae583f482bab7f262aba98ae50/FLAG0bcf1d0b6 [2022-11-23 15:09:43,006 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/data/593772bf0/53c635ae583f482bab7f262aba98ae50 [2022-11-23 15:09:43,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:09:43,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:09:43,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:09:43,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:09:43,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:09:43,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:09:43" (1/1) ... [2022-11-23 15:09:43,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b193a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:43, skipping insertion in model container [2022-11-23 15:09:43,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:09:43" (1/1) ... [2022-11-23 15:09:43,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:09:43,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:09:43,233 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_7c92bba9-bf1a-4190-b557-90cb1bf4931b/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c[727,740] [2022-11-23 15:09:43,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:09:43,296 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:09:43,312 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_7c92bba9-bf1a-4190-b557-90cb1bf4931b/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c[727,740] [2022-11-23 15:09:43,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:09:43,408 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:09:43,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:43 WrapperNode [2022-11-23 15:09:43,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:09:43,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:09:43,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:09:43,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:09:43,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:43" (1/1) ... [2022-11-23 15:09:43,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:43" (1/1) ... [2022-11-23 15:09:43,512 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 181 [2022-11-23 15:09:43,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:09:43,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:09:43,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:09:43,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:09:43,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:43" (1/1) ... [2022-11-23 15:09:43,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:43" (1/1) ... [2022-11-23 15:09:43,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:43" (1/1) ... [2022-11-23 15:09:43,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:43" (1/1) ... [2022-11-23 15:09:43,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:43" (1/1) ... [2022-11-23 15:09:43,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:43" (1/1) ... [2022-11-23 15:09:43,576 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:43" (1/1) ... [2022-11-23 15:09:43,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:43" (1/1) ... [2022-11-23 15:09:43,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:09:43,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:09:43,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:09:43,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:09:43,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:43" (1/1) ... [2022-11-23 15:09:43,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:09:43,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:09:43,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:09:43,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:09:43,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:09:43,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:09:43,672 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-23 15:09:43,672 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-23 15:09:43,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:09:43,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:09:43,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 15:09:43,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 15:09:43,784 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:09:43,786 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:09:44,325 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:09:44,698 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:09:44,699 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:09:44,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:09:44 BoogieIcfgContainer [2022-11-23 15:09:44,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:09:44,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:09:44,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:09:44,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:09:44,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:09:43" (1/3) ... [2022-11-23 15:09:44,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b88178a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:09:44, skipping insertion in model container [2022-11-23 15:09:44,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:09:43" (2/3) ... [2022-11-23 15:09:44,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b88178a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:09:44, skipping insertion in model container [2022-11-23 15:09:44,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:09:44" (3/3) ... [2022-11-23 15:09:44,715 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_5.c.cil.c [2022-11-23 15:09:44,737 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:09:44,737 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-11-23 15:09:44,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:09:44,817 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;@14ee4a66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:09:44,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-23 15:09:44,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 51 states have (on average 1.7647058823529411) internal successors, (90), 76 states have internal predecessors, (90), 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) [2022-11-23 15:09:44,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:09:44,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:44,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:09:44,834 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:09:44,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:44,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1175687042, now seen corresponding path program 1 times [2022-11-23 15:09:44,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:44,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787481106] [2022-11-23 15:09:44,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:44,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:45,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:09:45,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:45,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787481106] [2022-11-23 15:09:45,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787481106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:45,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:45,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:09:45,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376966816] [2022-11-23 15:09:45,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:45,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:09:45,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:45,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:09:45,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:09:45,119 INFO L87 Difference]: Start difference. First operand has 83 states, 51 states have (on average 1.7647058823529411) internal successors, (90), 76 states have internal predecessors, (90), 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) [2022-11-23 15:09:45,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:45,237 INFO L93 Difference]: Finished difference Result 162 states and 201 transitions. [2022-11-23 15:09:45,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:09:45,242 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 [2022-11-23 15:09:45,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:45,250 INFO L225 Difference]: With dead ends: 162 [2022-11-23 15:09:45,250 INFO L226 Difference]: Without dead ends: 74 [2022-11-23 15:09:45,253 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 [2022-11-23 15:09:45,257 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:45,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:09:45,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-23 15:09:45,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-23 15:09:45,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 47 states have (on average 1.5957446808510638) internal successors, (75), 68 states have internal predecessors, (75), 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) [2022-11-23 15:09:45,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2022-11-23 15:09:45,302 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 8 [2022-11-23 15:09:45,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:45,303 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2022-11-23 15:09:45,303 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) [2022-11-23 15:09:45,303 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2022-11-23 15:09:45,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:09:45,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:45,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:09:45,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:09:45,306 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:09:45,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:45,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1174478018, now seen corresponding path program 1 times [2022-11-23 15:09:45,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:45,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100894876] [2022-11-23 15:09:45,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:45,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:09:45,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:45,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100894876] [2022-11-23 15:09:45,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100894876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:45,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:45,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:09:45,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690402564] [2022-11-23 15:09:45,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:45,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:09:45,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:45,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:09:45,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:09:45,405 INFO L87 Difference]: Start difference. First operand 74 states and 83 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) [2022-11-23 15:09:45,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:45,543 INFO L93 Difference]: Finished difference Result 194 states and 230 transitions. [2022-11-23 15:09:45,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:09:45,544 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 [2022-11-23 15:09:45,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:45,547 INFO L225 Difference]: With dead ends: 194 [2022-11-23 15:09:45,547 INFO L226 Difference]: Without dead ends: 122 [2022-11-23 15:09:45,548 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 [2022-11-23 15:09:45,549 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 67 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:45,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 177 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:09:45,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-23 15:09:45,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 110. [2022-11-23 15:09:45,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 82 states have (on average 1.5365853658536586) internal successors, (126), 103 states have internal predecessors, (126), 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) [2022-11-23 15:09:45,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 134 transitions. [2022-11-23 15:09:45,564 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 134 transitions. Word has length 8 [2022-11-23 15:09:45,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:45,564 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 134 transitions. [2022-11-23 15:09:45,565 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) [2022-11-23 15:09:45,565 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 134 transitions. [2022-11-23 15:09:45,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:09:45,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:45,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:09:45,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:09:45,566 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:09:45,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:45,567 INFO L85 PathProgramCache]: Analyzing trace with hash -220468695, now seen corresponding path program 1 times [2022-11-23 15:09:45,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:45,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860955379] [2022-11-23 15:09:45,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:45,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:45,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:09:45,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:45,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860955379] [2022-11-23 15:09:45,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860955379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:45,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:45,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:09:45,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111049087] [2022-11-23 15:09:45,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:45,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:09:45,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:45,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:09:45,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:09:45,713 INFO L87 Difference]: Start difference. First operand 110 states and 134 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:09:45,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:45,928 INFO L93 Difference]: Finished difference Result 244 states and 296 transitions. [2022-11-23 15:09:45,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:09:45,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-23 15:09:45,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:45,934 INFO L225 Difference]: With dead ends: 244 [2022-11-23 15:09:45,934 INFO L226 Difference]: Without dead ends: 136 [2022-11-23 15:09:45,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:09:45,941 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 120 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:45,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 185 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:09:45,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-23 15:09:45,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 119. [2022-11-23 15:09:45,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 91 states have (on average 1.4945054945054945) internal successors, (136), 112 states have internal predecessors, (136), 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) [2022-11-23 15:09:45,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 144 transitions. [2022-11-23 15:09:45,957 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 144 transitions. Word has length 12 [2022-11-23 15:09:45,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:45,958 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 144 transitions. [2022-11-23 15:09:45,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:09:45,958 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 144 transitions. [2022-11-23 15:09:45,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 15:09:45,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:45,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:09:45,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:09:45,966 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:09:45,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:45,966 INFO L85 PathProgramCache]: Analyzing trace with hash 978057145, now seen corresponding path program 1 times [2022-11-23 15:09:45,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:45,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806712848] [2022-11-23 15:09:45,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:45,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:46,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:09:46,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:46,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806712848] [2022-11-23 15:09:46,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806712848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:46,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:46,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:09:46,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814810981] [2022-11-23 15:09:46,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:46,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:09:46,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:46,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:09:46,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:09:46,106 INFO L87 Difference]: Start difference. First operand 119 states and 144 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:09:46,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:46,170 INFO L93 Difference]: Finished difference Result 240 states and 290 transitions. [2022-11-23 15:09:46,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:09:46,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-23 15:09:46,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:46,172 INFO L225 Difference]: With dead ends: 240 [2022-11-23 15:09:46,172 INFO L226 Difference]: Without dead ends: 123 [2022-11-23 15:09:46,173 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 [2022-11-23 15:09:46,174 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 5 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:46,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 201 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:09:46,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-11-23 15:09:46,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2022-11-23 15:09:46,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 94 states have (on average 1.4787234042553192) internal successors, (139), 115 states have internal predecessors, (139), 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) [2022-11-23 15:09:46,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 147 transitions. [2022-11-23 15:09:46,187 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 147 transitions. Word has length 13 [2022-11-23 15:09:46,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:46,188 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 147 transitions. [2022-11-23 15:09:46,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:09:46,188 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 147 transitions. [2022-11-23 15:09:46,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 15:09:46,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:46,189 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:09:46,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:09:46,190 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:09:46,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:46,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1583761674, now seen corresponding path program 1 times [2022-11-23 15:09:46,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:46,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989947390] [2022-11-23 15:09:46,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:46,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:46,246 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 15:09:46,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:46,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989947390] [2022-11-23 15:09:46,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989947390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:46,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:46,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:09:46,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474159872] [2022-11-23 15:09:46,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:46,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:09:46,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:46,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:09:46,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:09:46,249 INFO L87 Difference]: Start difference. First operand 123 states and 147 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:09:46,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:46,321 INFO L93 Difference]: Finished difference Result 127 states and 152 transitions. [2022-11-23 15:09:46,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:09:46,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 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 20 [2022-11-23 15:09:46,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:46,328 INFO L225 Difference]: With dead ends: 127 [2022-11-23 15:09:46,328 INFO L226 Difference]: Without dead ends: 126 [2022-11-23 15:09:46,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:09:46,334 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 3 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:46,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 128 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:09:46,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-23 15:09:46,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 121. [2022-11-23 15:09:46,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 93 states have (on average 1.4623655913978495) internal successors, (136), 113 states have internal predecessors, (136), 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) [2022-11-23 15:09:46,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 144 transitions. [2022-11-23 15:09:46,355 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 144 transitions. Word has length 20 [2022-11-23 15:09:46,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:46,356 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 144 transitions. [2022-11-23 15:09:46,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:09:46,356 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 144 transitions. [2022-11-23 15:09:46,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 15:09:46,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:46,357 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:09:46,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:09:46,358 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:09:46,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:46,358 INFO L85 PathProgramCache]: Analyzing trace with hash 574907254, now seen corresponding path program 1 times [2022-11-23 15:09:46,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:46,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866132722] [2022-11-23 15:09:46,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:46,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:46,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:09:46,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:46,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866132722] [2022-11-23 15:09:46,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866132722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:46,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:46,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:09:46,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125149287] [2022-11-23 15:09:46,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:46,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:09:46,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:46,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:09:46,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:09:46,521 INFO L87 Difference]: Start difference. First operand 121 states and 144 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 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) [2022-11-23 15:09:46,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:46,602 INFO L93 Difference]: Finished difference Result 204 states and 230 transitions. [2022-11-23 15:09:46,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:09:46,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 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 [2022-11-23 15:09:46,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:46,604 INFO L225 Difference]: With dead ends: 204 [2022-11-23 15:09:46,605 INFO L226 Difference]: Without dead ends: 111 [2022-11-23 15:09:46,605 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 [2022-11-23 15:09:46,607 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 31 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 197 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 [2022-11-23 15:09:46,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 197 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:09:46,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-23 15:09:46,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 105. [2022-11-23 15:09:46,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.4805194805194806) internal successors, (114), 97 states have internal predecessors, (114), 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) [2022-11-23 15:09:46,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 122 transitions. [2022-11-23 15:09:46,622 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 122 transitions. Word has length 19 [2022-11-23 15:09:46,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:46,622 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 122 transitions. [2022-11-23 15:09:46,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 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) [2022-11-23 15:09:46,624 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 122 transitions. [2022-11-23 15:09:46,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 15:09:46,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:46,625 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:09:46,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:09:46,625 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:09:46,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:46,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1352255268, now seen corresponding path program 1 times [2022-11-23 15:09:46,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:46,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741607296] [2022-11-23 15:09:46,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:46,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:46,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:09:46,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:46,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741607296] [2022-11-23 15:09:46,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741607296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:46,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:46,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:09:46,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856501809] [2022-11-23 15:09:46,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:46,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:09:46,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:46,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:09:46,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:09:46,692 INFO L87 Difference]: Start difference. First operand 105 states and 122 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) [2022-11-23 15:09:46,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:46,810 INFO L93 Difference]: Finished difference Result 113 states and 125 transitions. [2022-11-23 15:09:46,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:09:46,811 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 [2022-11-23 15:09:46,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:46,812 INFO L225 Difference]: With dead ends: 113 [2022-11-23 15:09:46,812 INFO L226 Difference]: Without dead ends: 110 [2022-11-23 15:09:46,813 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 [2022-11-23 15:09:46,814 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 42 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:46,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 234 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:09:46,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-11-23 15:09:46,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 105. [2022-11-23 15:09:46,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.4285714285714286) internal successors, (110), 97 states have internal predecessors, (110), 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) [2022-11-23 15:09:46,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 118 transitions. [2022-11-23 15:09:46,826 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 118 transitions. Word has length 19 [2022-11-23 15:09:46,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:46,826 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 118 transitions. [2022-11-23 15:09:46,826 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) [2022-11-23 15:09:46,827 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 118 transitions. [2022-11-23 15:09:46,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 15:09:46,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:46,828 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:09:46,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:09:46,828 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:09:46,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:46,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1657576656, now seen corresponding path program 1 times [2022-11-23 15:09:46,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:46,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110619408] [2022-11-23 15:09:46,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:46,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:46,871 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 15:09:46,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:46,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110619408] [2022-11-23 15:09:46,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110619408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:46,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:46,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:09:46,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995487798] [2022-11-23 15:09:46,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:46,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:09:46,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:46,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:09:46,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:09:46,877 INFO L87 Difference]: Start difference. First operand 105 states and 118 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-11-23 15:09:46,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:46,956 INFO L93 Difference]: Finished difference Result 117 states and 134 transitions. [2022-11-23 15:09:46,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:09:46,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 23 [2022-11-23 15:09:46,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:46,958 INFO L225 Difference]: With dead ends: 117 [2022-11-23 15:09:46,958 INFO L226 Difference]: Without dead ends: 114 [2022-11-23 15:09:46,959 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 [2022-11-23 15:09:46,959 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 14 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:46,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 121 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:09:46,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-11-23 15:09:46,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 103. [2022-11-23 15:09:46,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 76 states have (on average 1.394736842105263) internal successors, (106), 95 states have internal predecessors, (106), 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) [2022-11-23 15:09:46,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 114 transitions. [2022-11-23 15:09:46,968 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 114 transitions. Word has length 23 [2022-11-23 15:09:46,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:46,968 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 114 transitions. [2022-11-23 15:09:46,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-11-23 15:09:46,969 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 114 transitions. [2022-11-23 15:09:46,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 15:09:46,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:46,970 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] [2022-11-23 15:09:46,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:09:46,971 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:09:46,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:46,971 INFO L85 PathProgramCache]: Analyzing trace with hash -189971849, now seen corresponding path program 1 times [2022-11-23 15:09:46,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:46,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022565337] [2022-11-23 15:09:46,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:46,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:47,037 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 15:09:47,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:47,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022565337] [2022-11-23 15:09:47,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022565337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:47,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:47,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:09:47,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562137243] [2022-11-23 15:09:47,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:47,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:09:47,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:47,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:09:47,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:09:47,040 INFO L87 Difference]: Start difference. First operand 103 states and 114 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) [2022-11-23 15:09:47,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:47,166 INFO L93 Difference]: Finished difference Result 143 states and 161 transitions. [2022-11-23 15:09:47,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:09:47,167 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 [2022-11-23 15:09:47,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:47,168 INFO L225 Difference]: With dead ends: 143 [2022-11-23 15:09:47,169 INFO L226 Difference]: Without dead ends: 140 [2022-11-23 15:09:47,169 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 [2022-11-23 15:09:47,170 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 96 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:47,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 186 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:09:47,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-23 15:09:47,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 124. [2022-11-23 15:09:47,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 96 states have (on average 1.4166666666666667) internal successors, (136), 115 states have internal predecessors, (136), 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) [2022-11-23 15:09:47,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2022-11-23 15:09:47,180 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 33 [2022-11-23 15:09:47,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:47,180 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2022-11-23 15:09:47,180 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) [2022-11-23 15:09:47,181 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2022-11-23 15:09:47,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 15:09:47,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:47,182 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 15:09:47,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:09:47,182 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:09:47,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:47,183 INFO L85 PathProgramCache]: Analyzing trace with hash -218599205, now seen corresponding path program 1 times [2022-11-23 15:09:47,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:47,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21996162] [2022-11-23 15:09:47,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:47,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:47,255 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 15:09:47,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:47,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21996162] [2022-11-23 15:09:47,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21996162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:47,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:47,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:09:47,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202309197] [2022-11-23 15:09:47,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:47,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:09:47,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:47,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:09:47,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:09:47,258 INFO L87 Difference]: Start difference. First operand 124 states and 144 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) [2022-11-23 15:09:47,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:47,386 INFO L93 Difference]: Finished difference Result 142 states and 161 transitions. [2022-11-23 15:09:47,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:09:47,387 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 [2022-11-23 15:09:47,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:47,388 INFO L225 Difference]: With dead ends: 142 [2022-11-23 15:09:47,389 INFO L226 Difference]: Without dead ends: 139 [2022-11-23 15:09:47,389 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 [2022-11-23 15:09:47,390 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 100 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:47,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 181 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:09:47,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-23 15:09:47,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 128. [2022-11-23 15:09:47,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 101 states have (on average 1.3762376237623761) internal successors, (139), 119 states have internal predecessors, (139), 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) [2022-11-23 15:09:47,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 147 transitions. [2022-11-23 15:09:47,399 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 147 transitions. Word has length 33 [2022-11-23 15:09:47,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:47,400 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 147 transitions. [2022-11-23 15:09:47,400 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) [2022-11-23 15:09:47,400 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 147 transitions. [2022-11-23 15:09:47,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-23 15:09:47,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:47,402 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:09:47,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 15:09:47,402 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:09:47,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:47,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1088767267, now seen corresponding path program 1 times [2022-11-23 15:09:47,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:47,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51387499] [2022-11-23 15:09:47,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:47,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:47,560 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:09:47,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:47,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51387499] [2022-11-23 15:09:47,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51387499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:47,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:47,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:09:47,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653953702] [2022-11-23 15:09:47,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:47,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:09:47,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:47,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:09:47,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:09:47,565 INFO L87 Difference]: Start difference. First operand 128 states and 147 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-11-23 15:09:47,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:47,663 INFO L93 Difference]: Finished difference Result 296 states and 341 transitions. [2022-11-23 15:09:47,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:09:47,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 37 [2022-11-23 15:09:47,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:47,665 INFO L225 Difference]: With dead ends: 296 [2022-11-23 15:09:47,665 INFO L226 Difference]: Without dead ends: 191 [2022-11-23 15:09:47,665 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 [2022-11-23 15:09:47,666 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 83 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:47,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 127 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:09:47,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-11-23 15:09:47,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 128. [2022-11-23 15:09:47,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 119 states have internal predecessors, (138), 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) [2022-11-23 15:09:47,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 146 transitions. [2022-11-23 15:09:47,677 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 146 transitions. Word has length 37 [2022-11-23 15:09:47,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:47,677 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 146 transitions. [2022-11-23 15:09:47,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-11-23 15:09:47,678 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 146 transitions. [2022-11-23 15:09:47,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-23 15:09:47,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:47,679 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, 1, 1] [2022-11-23 15:09:47,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 15:09:47,679 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:09:47,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:47,680 INFO L85 PathProgramCache]: Analyzing trace with hash -863566055, now seen corresponding path program 1 times [2022-11-23 15:09:47,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:47,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799848840] [2022-11-23 15:09:47,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:47,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:47,767 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:09:47,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:47,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799848840] [2022-11-23 15:09:47,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799848840] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:09:47,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811560572] [2022-11-23 15:09:47,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:47,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:09:47,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:09:47,771 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:09:47,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:09:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:47,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:09:47,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:09:47,995 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:09:47,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:09:48,187 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:09:48,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811560572] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:09:48,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [978156130] [2022-11-23 15:09:48,211 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-23 15:09:48,211 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:09:48,216 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:09:48,222 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:09:48,222 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:09:48,679 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 22 for LOIs [2022-11-23 15:09:48,858 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:09:50,034 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4166#(and (<= |base2flt_#in~e| 127) (= base2flt_~e |base2flt_#in~e|) (or (<= 0 base2flt_~m) (< |base2flt_#in~m| 0)) (<= 16777216 (mod |base2flt_#in~m| 4294967296)) (< (mod |base2flt_#in~m| 4294967296) 33554432) (< 0 (+ (* 16777216 base2flt_~e) 1)) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 15:09:50,035 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:09:50,035 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:09:50,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2022-11-23 15:09:50,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074039892] [2022-11-23 15:09:50,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:09:50,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 15:09:50,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:50,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 15:09:50,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=738, Unknown=0, NotChecked=0, Total=930 [2022-11-23 15:09:50,037 INFO L87 Difference]: Start difference. First operand 128 states and 146 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 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) [2022-11-23 15:09:50,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:50,535 INFO L93 Difference]: Finished difference Result 490 states and 571 transitions. [2022-11-23 15:09:50,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 15:09:50,535 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 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 38 [2022-11-23 15:09:50,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:50,537 INFO L225 Difference]: With dead ends: 490 [2022-11-23 15:09:50,538 INFO L226 Difference]: Without dead ends: 389 [2022-11-23 15:09:50,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 90 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=362, Invalid=1278, Unknown=0, NotChecked=0, Total=1640 [2022-11-23 15:09:50,539 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 303 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:50,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 168 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:09:50,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-11-23 15:09:50,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 148. [2022-11-23 15:09:50,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 121 states have (on average 1.3388429752066116) internal successors, (162), 139 states have internal predecessors, (162), 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) [2022-11-23 15:09:50,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 170 transitions. [2022-11-23 15:09:50,557 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 170 transitions. Word has length 38 [2022-11-23 15:09:50,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:50,558 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 170 transitions. [2022-11-23 15:09:50,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 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) [2022-11-23 15:09:50,558 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 170 transitions. [2022-11-23 15:09:50,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-23 15:09:50,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:50,559 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:09:50,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:09:50,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-23 15:09:50,765 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:09:50,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:50,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1685739527, now seen corresponding path program 1 times [2022-11-23 15:09:50,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:50,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645783784] [2022-11-23 15:09:50,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:50,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:50,895 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:09:50,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:50,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645783784] [2022-11-23 15:09:50,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645783784] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:09:50,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732797148] [2022-11-23 15:09:50,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:50,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:09:50,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:09:50,898 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:09:50,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:09:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:50,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 15:09:50,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:09:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:09:51,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:09:51,205 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:09:51,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732797148] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:09:51,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1155569729] [2022-11-23 15:09:51,208 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-23 15:09:51,208 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:09:51,209 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:09:51,209 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:09:51,209 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:09:51,466 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 22 for LOIs [2022-11-23 15:09:51,645 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:09:52,328 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5243#(and (<= |base2flt_#in~e| 127) (<= 0 (+ 128 |base2flt_#in~e|)) (< 0 (+ (* 16777216 base2flt_~e) 1)) (= |#NULL.offset| 0) (<= base2flt_~e 127) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 15:09:52,328 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:09:52,328 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:09:52,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-11-23 15:09:52,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576881684] [2022-11-23 15:09:52,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:09:52,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 15:09:52,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:52,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 15:09:52,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-11-23 15:09:52,330 INFO L87 Difference]: Start difference. First operand 148 states and 170 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 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) [2022-11-23 15:09:52,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:52,727 INFO L93 Difference]: Finished difference Result 395 states and 458 transitions. [2022-11-23 15:09:52,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 15:09:52,728 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 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 42 [2022-11-23 15:09:52,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:52,733 INFO L225 Difference]: With dead ends: 395 [2022-11-23 15:09:52,733 INFO L226 Difference]: Without dead ends: 282 [2022-11-23 15:09:52,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 105 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=209, Invalid=661, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:09:52,735 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 189 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:52,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 343 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:09:52,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-11-23 15:09:52,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 148. [2022-11-23 15:09:52,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 121 states have (on average 1.3057851239669422) internal successors, (158), 139 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) [2022-11-23 15:09:52,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 166 transitions. [2022-11-23 15:09:52,757 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 166 transitions. Word has length 42 [2022-11-23 15:09:52,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:52,757 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 166 transitions. [2022-11-23 15:09:52,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 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) [2022-11-23 15:09:52,758 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 166 transitions. [2022-11-23 15:09:52,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-23 15:09:52,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:52,759 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, 1, 1] [2022-11-23 15:09:52,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:09:52,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:09:52,965 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:09:52,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:52,966 INFO L85 PathProgramCache]: Analyzing trace with hash 416261145, now seen corresponding path program 2 times [2022-11-23 15:09:52,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:52,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145852738] [2022-11-23 15:09:52,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:52,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:53,180 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:09:53,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:53,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145852738] [2022-11-23 15:09:53,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145852738] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:09:53,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427193967] [2022-11-23 15:09:53,182 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 15:09:53,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:09:53,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:09:53,183 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:09:53,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:09:53,273 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-23 15:09:53,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:09:53,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 15:09:53,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:09:53,406 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:09:53,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:09:53,718 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:09:53,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427193967] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:09:53,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [751647078] [2022-11-23 15:09:53,721 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-23 15:09:53,721 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:09:53,722 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:09:53,722 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:09:53,722 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:09:53,940 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 22 for LOIs [2022-11-23 15:09:54,093 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:09:55,466 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6294#(and (<= |base2flt_#in~e| 127) (= base2flt_~e |base2flt_#in~e|) (or (<= 0 base2flt_~m) (< |base2flt_#in~m| 0)) (<= 16777216 (mod |base2flt_#in~m| 4294967296)) (< (mod |base2flt_#in~m| 4294967296) 33554432) (< 0 (+ (* 16777216 base2flt_~e) 1)) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 15:09:55,467 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:09:55,467 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:09:55,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-11-23 15:09:55,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999749199] [2022-11-23 15:09:55,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:09:55,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-23 15:09:55,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:55,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-23 15:09:55,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=428, Invalid=1378, Unknown=0, NotChecked=0, Total=1806 [2022-11-23 15:09:55,469 INFO L87 Difference]: Start difference. First operand 148 states and 166 transitions. Second operand has 26 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 26 states have internal predecessors, (125), 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) [2022-11-23 15:09:56,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:56,433 INFO L93 Difference]: Finished difference Result 798 states and 939 transitions. [2022-11-23 15:09:56,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-23 15:09:56,434 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 26 states have internal predecessors, (125), 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 58 [2022-11-23 15:09:56,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:56,436 INFO L225 Difference]: With dead ends: 798 [2022-11-23 15:09:56,437 INFO L226 Difference]: Without dead ends: 697 [2022-11-23 15:09:56,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 142 SyntacticMatches, 10 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1965 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=980, Invalid=2680, Unknown=0, NotChecked=0, Total=3660 [2022-11-23 15:09:56,439 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 622 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:56,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 231 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:09:56,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2022-11-23 15:09:56,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 188. [2022-11-23 15:09:56,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 161 states have (on average 1.279503105590062) internal successors, (206), 179 states have internal predecessors, (206), 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) [2022-11-23 15:09:56,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 214 transitions. [2022-11-23 15:09:56,464 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 214 transitions. Word has length 58 [2022-11-23 15:09:56,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:56,465 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 214 transitions. [2022-11-23 15:09:56,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 26 states have internal predecessors, (125), 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) [2022-11-23 15:09:56,465 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 214 transitions. [2022-11-23 15:09:56,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-23 15:09:56,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:56,466 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:09:56,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:09:56,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-23 15:09:56,676 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:09:56,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:56,677 INFO L85 PathProgramCache]: Analyzing trace with hash 674743545, now seen corresponding path program 2 times [2022-11-23 15:09:56,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:56,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97718486] [2022-11-23 15:09:56,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:56,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:56,986 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 14 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:09:56,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:56,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97718486] [2022-11-23 15:09:56,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97718486] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:09:56,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888278934] [2022-11-23 15:09:56,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 15:09:56,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:09:56,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:09:56,988 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:09:57,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:09:57,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-11-23 15:09:57,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:09:57,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 15:09:57,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:09:57,344 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 14 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:09:57,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:09:57,861 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 14 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:09:57,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888278934] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:09:57,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1434200807] [2022-11-23 15:09:57,863 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-23 15:09:57,864 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:09:57,864 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:09:57,864 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:09:57,865 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:09:58,104 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 22 for LOIs [2022-11-23 15:09:58,296 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:09:59,357 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7951#(and (<= |base2flt_#in~e| 127) (<= 0 (+ 128 |base2flt_#in~e|)) (< 0 (+ (* 16777216 base2flt_~e) 1)) (= |#NULL.offset| 0) (<= base2flt_~e 127) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 15:09:59,357 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:09:59,357 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:09:59,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2022-11-23 15:09:59,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292816175] [2022-11-23 15:09:59,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:09:59,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-23 15:09:59,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:59,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-23 15:09:59,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=1043, Unknown=0, NotChecked=0, Total=1332 [2022-11-23 15:09:59,360 INFO L87 Difference]: Start difference. First operand 188 states and 214 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 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) [2022-11-23 15:10:20,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:10:20,636 INFO L93 Difference]: Finished difference Result 563 states and 662 transitions. [2022-11-23 15:10:20,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 15:10:20,638 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 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 62 [2022-11-23 15:10:20,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:10:20,640 INFO L225 Difference]: With dead ends: 563 [2022-11-23 15:10:20,640 INFO L226 Difference]: Without dead ends: 450 [2022-11-23 15:10:20,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 159 SyntacticMatches, 8 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=617, Invalid=1829, Unknown=4, NotChecked=0, Total=2450 [2022-11-23 15:10:20,644 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 422 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:10:20,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 958 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-23 15:10:20,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-11-23 15:10:20,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 188. [2022-11-23 15:10:20,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 161 states have (on average 1.2298136645962734) internal successors, (198), 179 states have internal predecessors, (198), 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) [2022-11-23 15:10:20,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 206 transitions. [2022-11-23 15:10:20,676 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 206 transitions. Word has length 62 [2022-11-23 15:10:20,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:10:20,678 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 206 transitions. [2022-11-23 15:10:20,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 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) [2022-11-23 15:10:20,678 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 206 transitions. [2022-11-23 15:10:20,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-23 15:10:20,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:10:20,679 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, 1, 1] [2022-11-23 15:10:20,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:10:20,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-23 15:10:20,886 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:10:20,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:10:20,887 INFO L85 PathProgramCache]: Analyzing trace with hash -565223911, now seen corresponding path program 3 times [2022-11-23 15:10:20,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:10:20,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860172963] [2022-11-23 15:10:20,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:10:20,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:10:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:10:21,424 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 8 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:10:21,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:10:21,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860172963] [2022-11-23 15:10:21,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860172963] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:10:21,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647396482] [2022-11-23 15:10:21,425 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 15:10:21,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:10:21,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:10:21,428 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:10:21,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 15:10:21,531 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 15:10:21,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:10:21,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 15:10:21,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:10:21,872 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 8 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:10:21,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:10:22,820 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 8 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:10:22,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647396482] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:10:22,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [691655445] [2022-11-23 15:10:22,823 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-23 15:10:22,824 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:10:22,824 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:10:22,824 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:10:22,824 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:10:23,506 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 22 for LOIs [2022-11-23 15:10:23,632 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:10:25,291 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9550#(and (<= |base2flt_#in~e| 127) (= base2flt_~e |base2flt_#in~e|) (or (<= 0 base2flt_~m) (< |base2flt_#in~m| 0)) (<= 16777216 (mod |base2flt_#in~m| 4294967296)) (< (mod |base2flt_#in~m| 4294967296) 33554432) (< 0 (+ (* 16777216 base2flt_~e) 1)) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 15:10:25,291 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:10:25,291 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:10:25,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2022-11-23 15:10:25,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657110904] [2022-11-23 15:10:25,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:10:25,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-23 15:10:25,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:10:25,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-23 15:10:25,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1188, Invalid=3234, Unknown=0, NotChecked=0, Total=4422 [2022-11-23 15:10:25,295 INFO L87 Difference]: Start difference. First operand 188 states and 206 transitions. Second operand has 50 states, 50 states have (on average 4.9) internal successors, (245), 50 states have internal predecessors, (245), 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) [2022-11-23 15:10:27,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:10:27,692 INFO L93 Difference]: Finished difference Result 1414 states and 1675 transitions. [2022-11-23 15:10:27,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-11-23 15:10:27,693 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 4.9) internal successors, (245), 50 states have internal predecessors, (245), 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 98 [2022-11-23 15:10:27,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:10:27,699 INFO L225 Difference]: With dead ends: 1414 [2022-11-23 15:10:27,700 INFO L226 Difference]: Without dead ends: 1313 [2022-11-23 15:10:27,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 246 SyntacticMatches, 18 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5425 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=3128, Invalid=6972, Unknown=0, NotChecked=0, Total=10100 [2022-11-23 15:10:27,705 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 1303 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:10:27,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1303 Valid, 358 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [449 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 15:10:27,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2022-11-23 15:10:27,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 268. [2022-11-23 15:10:27,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 241 states have (on average 1.2199170124481329) internal successors, (294), 259 states have internal predecessors, (294), 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) [2022-11-23 15:10:27,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 302 transitions. [2022-11-23 15:10:27,760 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 302 transitions. Word has length 98 [2022-11-23 15:10:27,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:10:27,760 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 302 transitions. [2022-11-23 15:10:27,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 4.9) internal successors, (245), 50 states have internal predecessors, (245), 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) [2022-11-23 15:10:27,761 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 302 transitions. [2022-11-23 15:10:27,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-23 15:10:27,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:10:27,768 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:10:27,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 15:10:27,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-23 15:10:27,981 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:10:27,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:10:27,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1397391097, now seen corresponding path program 3 times [2022-11-23 15:10:27,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:10:27,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544378723] [2022-11-23 15:10:27,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:10:27,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:10:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:10:28,649 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 14 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:10:28,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:10:28,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544378723] [2022-11-23 15:10:28,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544378723] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:10:28,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492375150] [2022-11-23 15:10:28,650 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 15:10:28,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:10:28,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:10:28,652 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:10:28,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 15:10:28,818 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 15:10:28,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:10:28,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-23 15:10:28,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:10:29,373 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 14 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:10:29,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:10:30,357 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 14 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:10:30,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492375150] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:10:30,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1711655634] [2022-11-23 15:10:30,361 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-23 15:10:30,361 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:10:30,363 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:10:30,363 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:10:30,363 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:10:30,619 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 22 for LOIs [2022-11-23 15:10:30,748 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:10:32,731 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12367#(and (<= |base2flt_#in~e| 127) (<= 0 (+ 128 |base2flt_#in~e|)) (< 0 (+ (* 16777216 base2flt_~e) 1)) (= |#NULL.offset| 0) (<= base2flt_~e 127) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 15:10:32,731 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:10:32,731 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:10:32,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 49 [2022-11-23 15:10:32,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793796729] [2022-11-23 15:10:32,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:10:32,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-23 15:10:32,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:10:32,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-23 15:10:32,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=747, Invalid=2913, Unknown=0, NotChecked=0, Total=3660 [2022-11-23 15:10:32,735 INFO L87 Difference]: Start difference. First operand 268 states and 302 transitions. Second operand has 49 states, 49 states have (on average 5.1020408163265305) internal successors, (250), 49 states have internal predecessors, (250), 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) [2022-11-23 15:10:39,052 WARN L233 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 58 DAG size of output: 16 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:10:59,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:12,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:12,127 INFO L93 Difference]: Finished difference Result 809 states and 956 transitions. [2022-11-23 15:11:12,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-23 15:11:12,128 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 5.1020408163265305) internal successors, (250), 49 states have internal predecessors, (250), 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 102 [2022-11-23 15:11:12,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:12,132 INFO L225 Difference]: With dead ends: 809 [2022-11-23 15:11:12,132 INFO L226 Difference]: Without dead ends: 696 [2022-11-23 15:11:12,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 257 SyntacticMatches, 16 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2491 ImplicationChecksByTransitivity, 38.3s TimeCoverageRelationStatistics Valid=1728, Invalid=5239, Unknown=5, NotChecked=0, Total=6972 [2022-11-23 15:11:12,135 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 972 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 218 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 2457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:12,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 2245 Invalid, 2457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 2238 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-23 15:11:12,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-11-23 15:11:12,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 268. [2022-11-23 15:11:12,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 241 states have (on average 1.1784232365145229) internal successors, (284), 259 states have internal predecessors, (284), 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) [2022-11-23 15:11:12,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 292 transitions. [2022-11-23 15:11:12,181 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 292 transitions. Word has length 102 [2022-11-23 15:11:12,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:12,182 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 292 transitions. [2022-11-23 15:11:12,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 5.1020408163265305) internal successors, (250), 49 states have internal predecessors, (250), 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) [2022-11-23 15:11:12,182 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 292 transitions. [2022-11-23 15:11:12,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-23 15:11:12,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:12,184 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:12,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:12,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-23 15:11:12,391 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:11:12,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:12,391 INFO L85 PathProgramCache]: Analyzing trace with hash -349366407, now seen corresponding path program 4 times [2022-11-23 15:11:12,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:12,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932997212] [2022-11-23 15:11:12,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:12,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:11:12,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:11:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:11:12,572 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:11:12,572 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:11:12,574 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2022-11-23 15:11:12,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2022-11-23 15:11:12,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2022-11-23 15:11:12,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2022-11-23 15:11:12,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2022-11-23 15:11:12,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2022-11-23 15:11:12,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2022-11-23 15:11:12,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2022-11-23 15:11:12,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2022-11-23 15:11:12,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2022-11-23 15:11:12,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2022-11-23 15:11:12,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2022-11-23 15:11:12,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2022-11-23 15:11:12,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2022-11-23 15:11:12,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2022-11-23 15:11:12,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2022-11-23 15:11:12,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2022-11-23 15:11:12,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2022-11-23 15:11:12,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2022-11-23 15:11:12,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2022-11-23 15:11:12,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2022-11-23 15:11:12,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2022-11-23 15:11:12,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2022-11-23 15:11:12,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2022-11-23 15:11:12,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-23 15:11:12,586 INFO L444 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:12,594 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:11:12,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:11:12 BoogieIcfgContainer [2022-11-23 15:11:12,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:11:12,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:11:12,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:11:12,690 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:11:12,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:09:44" (3/4) ... [2022-11-23 15:11:12,694 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:11:12,694 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:11:12,695 INFO L158 Benchmark]: Toolchain (without parser) took 89683.04ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 118.3MB in the beginning and 119.6MB in the end (delta: -1.2MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2022-11-23 15:11:12,695 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 165.7MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:11:12,696 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.71ms. Allocated memory is still 165.7MB. Free memory was 118.3MB in the beginning and 104.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 15:11:12,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.03ms. Allocated memory is still 165.7MB. Free memory was 104.3MB in the beginning and 102.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:11:12,696 INFO L158 Benchmark]: Boogie Preprocessor took 73.95ms. Allocated memory is still 165.7MB. Free memory was 102.2MB in the beginning and 100.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:11:12,697 INFO L158 Benchmark]: RCFGBuilder took 1112.96ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 100.4MB in the beginning and 164.2MB in the end (delta: -63.9MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2022-11-23 15:11:12,697 INFO L158 Benchmark]: TraceAbstraction took 87983.44ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 163.2MB in the beginning and 119.6MB in the end (delta: 43.6MB). Peak memory consumption was 84.5MB. Max. memory is 16.1GB. [2022-11-23 15:11:12,697 INFO L158 Benchmark]: Witness Printer took 4.75ms. Allocated memory is still 239.1MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:11:12,699 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 165.7MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.71ms. Allocated memory is still 165.7MB. Free memory was 118.3MB in the beginning and 104.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.03ms. Allocated memory is still 165.7MB. Free memory was 104.3MB in the beginning and 102.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.95ms. Allocated memory is still 165.7MB. Free memory was 102.2MB in the beginning and 100.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1112.96ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 100.4MB in the beginning and 164.2MB in the end (delta: -63.9MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. * TraceAbstraction took 87983.44ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 163.2MB in the beginning and 119.6MB in the end (delta: 43.6MB). Peak memory consumption was 84.5MB. Max. memory is 16.1GB. * Witness Printer took 4.75ms. Allocated memory is still 239.1MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 [unknown-#in~e-unknown=0, unknown-#in~m-unknown=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [e=0, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [__retres4=0, e=0, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=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 [unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [e=0, m=1, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L29] COND FALSE !(! m) VAL [e=0, m=1, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L35] COND TRUE m < 1U << 24U VAL [e=0, m=1, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=0, m=1, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=0, m=1, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-1, m=2, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-1, m=2, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-1, m=2, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-1, m=2, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-2, m=4, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-2, m=4, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-2, m=4, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-2, m=4, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-3, m=8, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-3, m=8, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-3, m=8, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-3, m=8, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-4, m=16, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-4, m=16, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-4, m=16, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-4, m=16, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-5, m=32, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-5, m=32, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-5, m=32, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-5, m=32, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-6, m=64, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-6, m=64, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-6, m=64, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-6, m=64, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-7, m=128, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-7, m=128, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-7, m=128, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-7, m=128, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-8, m=256, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-8, m=256, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-8, m=256, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-8, m=256, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-9, m=512, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-9, m=512, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-9, m=512, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-9, m=512, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-10, m=1024, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-10, m=1024, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-10, m=1024, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-10, m=1024, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-11, m=2048, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-11, m=2048, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-11, m=2048, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-11, m=2048, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-12, m=4096, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-12, m=4096, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-12, m=4096, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-12, m=4096, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-13, m=8192, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-13, m=8192, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-13, m=8192, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-13, m=8192, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-14, m=16384, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-14, m=16384, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-14, m=16384, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-14, m=16384, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-15, m=32768, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-15, m=32768, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-15, m=32768, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-15, m=32768, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-16, m=65536, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-16, m=65536, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-16, m=65536, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-16, m=65536, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-17, m=131072, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-17, m=131072, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-17, m=131072, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-17, m=131072, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-18, m=262144, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-18, m=262144, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-18, m=262144, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-18, m=262144, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-19, m=524288, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-19, m=524288, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-19, m=524288, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-19, m=524288, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-20, m=1048576, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-20, m=1048576, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-20, m=1048576, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-20, m=1048576, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-21, m=2097152, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-21, m=2097152, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-21, m=2097152, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-21, m=2097152, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-22, m=4194304, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-22, m=4194304, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-22, m=4194304, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-22, m=4194304, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-23, m=8388608, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-23, m=8388608, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-23, m=8388608, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-23, m=8388608, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-24, m=16777216, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND FALSE !(m < 1U << 24U) VAL [e=-24, m=16777216, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L76] m = m & ~ (1U << 24U) VAL [e=-24, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L77] EXPR e + 128 VAL [e=-24, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L77] EXPR (e + 128) << 24U [L77] res = m | (unsigned int )((e + 128) << 24U) [L78] __retres4 = res VAL [__retres4=1744830464, e=-24, m=0, res=1744830464, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [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 [unknown-#in~e-unknown=0, unknown-#in~m-unknown=-4278190080] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [e=0, m=16777216, unknown-#in~e-unknown=0, unknown-#in~m-unknown=-4278190080] [L29] COND FALSE !(! m) VAL [e=0, m=16777216, unknown-#in~e-unknown=0, unknown-#in~m-unknown=-4278190080] [L35] COND FALSE !(m < 1U << 24U) VAL [e=0, m=16777216, unknown-#in~e-unknown=0, unknown-#in~m-unknown=-4278190080] [L57] COND TRUE 1 VAL [e=0, m=16777216, unknown-#in~e-unknown=0, unknown-#in~m-unknown=-4278190080] [L59] COND FALSE !(m >= 1U << 25U) VAL [e=0, m=16777216, unknown-#in~e-unknown=0, unknown-#in~m-unknown=-4278190080] [L76] m = m & ~ (1U << 24U) VAL [e=0, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=-4278190080] [L77] EXPR e + 128 VAL [e=0, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=-4278190080] [L77] (e + 128) << 24U VAL [e=0, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=-4278190080] - 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: 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. - 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, 83 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 87.8s, OverallIterations: 18, TraceHistogramMax: 24, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 66.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 4378 SdHoareTripleChecker+Valid, 8.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4372 mSDsluCounter, 6122 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4975 mSDsCounter, 1146 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5243 IncrementalHoareTripleChecker+Invalid, 6390 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1146 mSolverCounterUnsat, 1147 mSDtfsCounter, 5243 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1478 GetRequests, 1025 SyntacticMatches, 64 SemanticMatches, 389 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11984 ImplicationChecksByTransitivity, 66.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=268occurred in iteration=16, InterpolantAutomatonStates: 253, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 17 MinimizatonAttempts, 2765 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 1177 NumberOfCodeBlocks, 1177 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 1396 ConstructedInterpolants, 0 QuantifiedInterpolants, 7522 SizeOfPredicates, 6 NumberOfNonLiveVariables, 957 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 29 InterpolantComputations, 11 PerfectInterpolantSequences, 272/3614 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 [2022-11-23 15:11:12,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/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_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW --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-4e7fbc6 [2022-11-23 15:11:15,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:11:15,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:11:15,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:11:15,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:11:15,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:11:15,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:11:15,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:11:15,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:11:15,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:11:15,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:11:15,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:11:15,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:11:15,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:11:15,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:11:15,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:11:15,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:11:15,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:11:15,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:11:15,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:11:15,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:11:15,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:11:15,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:11:15,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:11:15,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:11:15,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:11:15,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:11:15,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:11:15,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:11:15,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:11:15,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:11:15,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:11:15,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:11:15,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:11:15,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:11:15,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:11:15,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:11:15,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:11:15,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:11:15,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:11:15,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:11:15,419 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2022-11-23 15:11:15,455 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:11:15,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:11:15,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:11:15,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:11:15,458 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:11:15,459 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:11:15,459 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:11:15,459 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:11:15,460 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:11:15,460 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:11:15,461 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:11:15,461 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:11:15,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:11:15,462 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:11:15,463 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:11:15,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:11:15,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:11:15,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:11:15,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:11:15,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:11:15,464 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:11:15,464 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:11:15,464 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:11:15,465 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:11:15,465 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:11:15,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:11:15,465 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:11:15,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:11:15,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:11:15,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:11:15,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:11:15,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:11:15,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:11:15,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:11:15,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:11:15,468 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:11:15,468 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:11:15,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:11:15,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:11:15,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:11:15,469 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_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd739e073fd22ceb2879e867de327b334b7eea402e53d4a8f9e32eed7e4110d8 [2022-11-23 15:11:15,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:11:15,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:11:15,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:11:15,901 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:11:15,901 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:11:15,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2022-11-23 15:11:19,231 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:11:19,445 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:11:19,450 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2022-11-23 15:11:19,466 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/data/816168802/d0c095036dee4c8fb94f7b625f106b14/FLAGbd37143d2 [2022-11-23 15:11:19,496 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/data/816168802/d0c095036dee4c8fb94f7b625f106b14 [2022-11-23 15:11:19,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:11:19,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:11:19,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:11:19,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:11:19,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:11:19,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:11:19" (1/1) ... [2022-11-23 15:11:19,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5127b192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:19, skipping insertion in model container [2022-11-23 15:11:19,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:11:19" (1/1) ... [2022-11-23 15:11:19,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:11:19,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:11:19,795 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_7c92bba9-bf1a-4190-b557-90cb1bf4931b/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c[727,740] [2022-11-23 15:11:19,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:11:19,916 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:11:19,940 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_7c92bba9-bf1a-4190-b557-90cb1bf4931b/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c[727,740] [2022-11-23 15:11:19,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:11:20,016 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:11:20,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20 WrapperNode [2022-11-23 15:11:20,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:11:20,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:11:20,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:11:20,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:11:20,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 15:11:20,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 15:11:20,080 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 125 [2022-11-23 15:11:20,081 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:11:20,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:11:20,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:11:20,082 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:11:20,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 15:11:20,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 15:11:20,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 15:11:20,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 15:11:20,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 15:11:20,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 15:11:20,130 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 15:11:20,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 15:11:20,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:11:20,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:11:20,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:11:20,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:11:20,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (1/1) ... [2022-11-23 15:11:20,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:11:20,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:11:20,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:11:20,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:11:20,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:11:20,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 15:11:20,232 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-23 15:11:20,232 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-23 15:11:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:11:20,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:11:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 15:11:20,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 15:11:20,373 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:11:20,375 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:11:20,837 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:11:20,844 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:11:20,844 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:11:20,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:20 BoogieIcfgContainer [2022-11-23 15:11:20,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:11:20,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:11:20,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:11:20,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:11:20,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:11:19" (1/3) ... [2022-11-23 15:11:20,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae370f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:11:20, skipping insertion in model container [2022-11-23 15:11:20,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:20" (2/3) ... [2022-11-23 15:11:20,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae370f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:11:20, skipping insertion in model container [2022-11-23 15:11:20,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:20" (3/3) ... [2022-11-23 15:11:20,856 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_5.c.cil.c [2022-11-23 15:11:20,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:11:20,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-11-23 15:11:20,943 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:11:20,950 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;@3d899d45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:11:20,951 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-23 15:11:20,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 67 states have (on average 1.7014925373134329) internal successors, (114), 92 states have internal predecessors, (114), 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) [2022-11-23 15:11:20,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 15:11:20,964 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:20,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:20,965 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:11:20,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:20,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1525933714, now seen corresponding path program 1 times [2022-11-23 15:11:20,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:11:20,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426286310] [2022-11-23 15:11:20,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:20,986 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:20,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:11:20,991 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:11:20,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 15:11:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:21,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 15:11:21,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:21,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:21,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:11:21,132 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:11:21,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426286310] [2022-11-23 15:11:21,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426286310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:21,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:21,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 15:11:21,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20078037] [2022-11-23 15:11:21,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:21,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:11:21,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:11:21,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:11:21,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:11:21,186 INFO L87 Difference]: Start difference. First operand has 99 states, 67 states have (on average 1.7014925373134329) internal successors, (114), 92 states have internal predecessors, (114), 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, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:11:21,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:21,231 INFO L93 Difference]: Finished difference Result 185 states and 249 transitions. [2022-11-23 15:11:21,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:11:21,233 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 15:11:21,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:21,242 INFO L225 Difference]: With dead ends: 185 [2022-11-23 15:11:21,242 INFO L226 Difference]: Without dead ends: 73 [2022-11-23 15:11:21,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:11:21,249 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:21,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:11:21,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-23 15:11:21,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-23 15:11:21,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 67 states have internal predecessors, (77), 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) [2022-11-23 15:11:21,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 85 transitions. [2022-11-23 15:11:21,294 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 85 transitions. Word has length 9 [2022-11-23 15:11:21,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:21,295 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 85 transitions. [2022-11-23 15:11:21,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:11:21,296 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 85 transitions. [2022-11-23 15:11:21,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 15:11:21,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:21,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:21,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-23 15:11:21,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:21,509 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:11:21,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:21,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1524992448, now seen corresponding path program 1 times [2022-11-23 15:11:21,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:11:21,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990363509] [2022-11-23 15:11:21,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:21,511 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:21,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:11:21,513 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:11:21,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 15:11:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:21,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:11:21,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:21,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:21,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:11:21,623 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:11:21,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990363509] [2022-11-23 15:11:21,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990363509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:21,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:21,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:11:21,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784034642] [2022-11-23 15:11:21,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:21,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:11:21,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:11:21,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:11:21,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:11:21,634 INFO L87 Difference]: Start difference. First operand 73 states and 85 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:11:21,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:21,722 INFO L93 Difference]: Finished difference Result 151 states and 177 transitions. [2022-11-23 15:11:21,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:11:21,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 15:11:21,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:21,731 INFO L225 Difference]: With dead ends: 151 [2022-11-23 15:11:21,734 INFO L226 Difference]: Without dead ends: 81 [2022-11-23 15:11:21,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:11:21,739 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 9 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:21,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 232 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:11:21,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-23 15:11:21,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2022-11-23 15:11:21,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 58 states have (on average 1.396551724137931) internal successors, (81), 71 states have internal predecessors, (81), 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) [2022-11-23 15:11:21,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2022-11-23 15:11:21,765 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 9 [2022-11-23 15:11:21,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:21,765 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2022-11-23 15:11:21,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:11:21,766 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2022-11-23 15:11:21,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 15:11:21,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:21,767 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:21,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:21,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:21,968 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:11:21,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:21,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1370428688, now seen corresponding path program 1 times [2022-11-23 15:11:21,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:11:21,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473837708] [2022-11-23 15:11:21,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:21,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:21,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:11:21,976 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:11:22,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 15:11:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:22,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:11:22,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:22,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:22,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:11:22,101 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:11:22,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [473837708] [2022-11-23 15:11:22,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [473837708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:22,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:22,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:11:22,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464981707] [2022-11-23 15:11:22,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:22,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:11:22,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:11:22,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:11:22,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:11:22,104 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-23 15:11:22,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:22,291 INFO L93 Difference]: Finished difference Result 193 states and 228 transitions. [2022-11-23 15:11:22,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:11:22,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 16 [2022-11-23 15:11:22,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:22,294 INFO L225 Difference]: With dead ends: 193 [2022-11-23 15:11:22,294 INFO L226 Difference]: Without dead ends: 125 [2022-11-23 15:11:22,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:11:22,296 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 67 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:22,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 214 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:11:22,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-11-23 15:11:22,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 114. [2022-11-23 15:11:22,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 93 states have (on average 1.3870967741935485) internal successors, (129), 106 states have internal predecessors, (129), 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) [2022-11-23 15:11:22,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2022-11-23 15:11:22,327 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 16 [2022-11-23 15:11:22,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:22,328 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2022-11-23 15:11:22,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-23 15:11:22,328 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2022-11-23 15:11:22,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:11:22,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:22,330 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:22,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:22,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:22,531 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:11:22,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:22,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1635050763, now seen corresponding path program 1 times [2022-11-23 15:11:22,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:11:22,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [923327633] [2022-11-23 15:11:22,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:22,532 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:22,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:11:22,533 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:11:22,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-23 15:11:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:22,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:11:22,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:22,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:22,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:11:22,661 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:11:22,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [923327633] [2022-11-23 15:11:22,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [923327633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:22,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:22,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:11:22,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743550964] [2022-11-23 15:11:22,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:22,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:11:22,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:11:22,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:11:22,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:11:22,665 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:11:22,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:22,762 INFO L93 Difference]: Finished difference Result 197 states and 229 transitions. [2022-11-23 15:11:22,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:11:22,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-23 15:11:22,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:22,765 INFO L225 Difference]: With dead ends: 197 [2022-11-23 15:11:22,765 INFO L226 Difference]: Without dead ends: 104 [2022-11-23 15:11:22,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:11:22,767 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 31 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:22,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 235 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:11:22,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-23 15:11:22,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2022-11-23 15:11:22,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 77 states have (on average 1.3896103896103895) internal successors, (107), 90 states have internal predecessors, (107), 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) [2022-11-23 15:11:22,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 115 transitions. [2022-11-23 15:11:22,784 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 115 transitions. Word has length 21 [2022-11-23 15:11:22,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:22,784 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 115 transitions. [2022-11-23 15:11:22,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:11:22,785 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 115 transitions. [2022-11-23 15:11:22,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:11:22,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:22,786 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:22,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:22,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:22,986 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:11:22,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:22,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1476687918, now seen corresponding path program 1 times [2022-11-23 15:11:22,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:11:22,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1421211860] [2022-11-23 15:11:22,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:22,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:22,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:11:22,989 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:11:22,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-23 15:11:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:23,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:11:23,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:23,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:23,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:11:23,078 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:11:23,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1421211860] [2022-11-23 15:11:23,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1421211860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:23,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:23,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:11:23,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057364905] [2022-11-23 15:11:23,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:23,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:11:23,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:11:23,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:11:23,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:11:23,081 INFO L87 Difference]: Start difference. First operand 98 states and 115 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:11:23,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:23,182 INFO L93 Difference]: Finished difference Result 190 states and 218 transitions. [2022-11-23 15:11:23,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:11:23,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-23 15:11:23,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:23,186 INFO L225 Difference]: With dead ends: 190 [2022-11-23 15:11:23,187 INFO L226 Difference]: Without dead ends: 113 [2022-11-23 15:11:23,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:11:23,193 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 44 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:23,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 310 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:11:23,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-23 15:11:23,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 100. [2022-11-23 15:11:23,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 79 states have (on average 1.379746835443038) internal successors, (109), 92 states have internal predecessors, (109), 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) [2022-11-23 15:11:23,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 117 transitions. [2022-11-23 15:11:23,215 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 117 transitions. Word has length 21 [2022-11-23 15:11:23,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:23,216 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 117 transitions. [2022-11-23 15:11:23,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:11:23,216 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 117 transitions. [2022-11-23 15:11:23,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:11:23,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:23,217 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:23,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:23,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:23,428 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:11:23,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:23,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1476578814, now seen corresponding path program 1 times [2022-11-23 15:11:23,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:11:23,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [958603961] [2022-11-23 15:11:23,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:23,429 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:23,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:11:23,435 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:11:23,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-23 15:11:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:23,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:11:23,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:23,590 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:23,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:23,743 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:11:23,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [958603961] [2022-11-23 15:11:23,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [958603961] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:23,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1739070338] [2022-11-23 15:11:23,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:23,744 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:11:23,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:11:23,749 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:11:23,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-11-23 15:11:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:23,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:11:23,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:23,870 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:23,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:23,937 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:23,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1739070338] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:23,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063861819] [2022-11-23 15:11:23,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:23,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:11:23,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:11:23,944 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:11:23,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 15:11:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:24,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:11:24,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:24,043 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:24,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:24,111 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:24,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063861819] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:24,112 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 15:11:24,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 7 [2022-11-23 15:11:24,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316001534] [2022-11-23 15:11:24,112 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 15:11:24,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:11:24,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:11:24,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:11:24,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:11:24,115 INFO L87 Difference]: Start difference. First operand 100 states and 117 transitions. Second operand has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:11:24,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:24,848 INFO L93 Difference]: Finished difference Result 217 states and 257 transitions. [2022-11-23 15:11:24,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 15:11:24,850 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-23 15:11:24,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:24,851 INFO L225 Difference]: With dead ends: 217 [2022-11-23 15:11:24,851 INFO L226 Difference]: Without dead ends: 146 [2022-11-23 15:11:24,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-11-23 15:11:24,853 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 196 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:24,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 320 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:11:24,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-23 15:11:24,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 101. [2022-11-23 15:11:24,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 81 states have (on average 1.345679012345679) internal successors, (109), 93 states have internal predecessors, (109), 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) [2022-11-23 15:11:24,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2022-11-23 15:11:24,868 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 117 transitions. Word has length 21 [2022-11-23 15:11:24,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:24,868 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 117 transitions. [2022-11-23 15:11:24,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:11:24,869 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 117 transitions. [2022-11-23 15:11:24,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-23 15:11:24,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:24,870 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:24,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:25,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:25,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-11-23 15:11:25,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:25,477 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:11:25,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:25,477 INFO L85 PathProgramCache]: Analyzing trace with hash -547019776, now seen corresponding path program 1 times [2022-11-23 15:11:25,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:11:25,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865736452] [2022-11-23 15:11:25,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:25,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:25,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:11:25,479 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:11:25,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-23 15:11:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:25,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:11:25,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:25,586 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:25,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:25,694 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:25,694 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:11:25,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865736452] [2022-11-23 15:11:25,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1865736452] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:25,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [439448197] [2022-11-23 15:11:25,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:25,695 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:11:25,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:11:25,698 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:11:25,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-23 15:11:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:25,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:11:25,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:25,840 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:25,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:25,881 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:25,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [439448197] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:25,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361058204] [2022-11-23 15:11:25,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:25,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:11:25,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:11:25,883 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:11:25,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-23 15:11:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:25,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 15:11:25,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:25,993 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:25,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:26,155 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:26,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361058204] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:26,156 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 15:11:26,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 7] total 13 [2022-11-23 15:11:26,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161615415] [2022-11-23 15:11:26,157 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 15:11:26,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 15:11:26,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:11:26,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 15:11:26,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-23 15:11:26,160 INFO L87 Difference]: Start difference. First operand 101 states and 117 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:11:26,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:26,684 INFO L93 Difference]: Finished difference Result 230 states and 269 transitions. [2022-11-23 15:11:26,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 15:11:26,685 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-23 15:11:26,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:26,687 INFO L225 Difference]: With dead ends: 230 [2022-11-23 15:11:26,687 INFO L226 Difference]: Without dead ends: 154 [2022-11-23 15:11:26,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2022-11-23 15:11:26,689 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 145 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:26,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 784 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:11:26,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-11-23 15:11:26,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 119. [2022-11-23 15:11:26,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 99 states have (on average 1.3131313131313131) internal successors, (130), 111 states have internal predecessors, (130), 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) [2022-11-23 15:11:26,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2022-11-23 15:11:26,724 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 26 [2022-11-23 15:11:26,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:26,725 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2022-11-23 15:11:26,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:11:26,725 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2022-11-23 15:11:26,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-23 15:11:26,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:26,727 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:26,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:26,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:27,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:27,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt [2022-11-23 15:11:27,340 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:11:27,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:27,340 INFO L85 PathProgramCache]: Analyzing trace with hash -198921976, now seen corresponding path program 1 times [2022-11-23 15:11:27,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:11:27,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067785776] [2022-11-23 15:11:27,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:27,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:27,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:11:27,342 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:11:27,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-23 15:11:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:27,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:11:27,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:27,512 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:27,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:27,822 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:27,823 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:11:27,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067785776] [2022-11-23 15:11:27,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067785776] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:27,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1797532214] [2022-11-23 15:11:27,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:27,823 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:11:27,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:11:27,828 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:11:27,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-23 15:11:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:27,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:11:27,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:27,997 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:27,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:28,178 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:28,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1797532214] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:28,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005111321] [2022-11-23 15:11:28,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:28,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:11:28,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:11:28,180 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:11:28,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-23 15:11:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:28,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 15:11:28,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:28,491 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:28,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:28,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005111321] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:28,849 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 15:11:28,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 7] total 15 [2022-11-23 15:11:28,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250912983] [2022-11-23 15:11:28,850 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 15:11:28,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 15:11:28,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:11:28,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 15:11:28,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-11-23 15:11:28,852 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 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) [2022-11-23 15:11:30,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:30,019 INFO L93 Difference]: Finished difference Result 313 states and 377 transitions. [2022-11-23 15:11:30,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 15:11:30,020 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 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 38 [2022-11-23 15:11:30,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:30,022 INFO L225 Difference]: With dead ends: 313 [2022-11-23 15:11:30,022 INFO L226 Difference]: Without dead ends: 240 [2022-11-23 15:11:30,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=185, Invalid=321, Unknown=0, NotChecked=0, Total=506 [2022-11-23 15:11:30,023 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 271 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:30,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 433 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 15:11:30,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-11-23 15:11:30,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 121. [2022-11-23 15:11:30,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 101 states have (on average 1.2772277227722773) internal successors, (129), 113 states have internal predecessors, (129), 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) [2022-11-23 15:11:30,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 137 transitions. [2022-11-23 15:11:30,051 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 137 transitions. Word has length 38 [2022-11-23 15:11:30,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:30,053 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 137 transitions. [2022-11-23 15:11:30,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 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) [2022-11-23 15:11:30,053 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 137 transitions. [2022-11-23 15:11:30,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-23 15:11:30,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:30,058 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:30,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:30,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:30,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:30,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt [2022-11-23 15:11:30,664 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:11:30,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:30,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1144709760, now seen corresponding path program 2 times [2022-11-23 15:11:30,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:11:30,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846182023] [2022-11-23 15:11:30,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 15:11:30,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:30,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:11:30,666 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:11:30,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-23 15:11:30,712 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 15:11:30,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:11:30,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-23 15:11:30,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:30,864 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:30,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:31,205 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:31,206 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:11:31,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846182023] [2022-11-23 15:11:31,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [846182023] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:31,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [956480527] [2022-11-23 15:11:31,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 15:11:31,206 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:11:31,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:11:31,208 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:11:31,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-11-23 15:11:31,331 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 15:11:31,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:11:31,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-23 15:11:31,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:31,434 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:31,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:31,540 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:31,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [956480527] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:31,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129393465] [2022-11-23 15:11:31,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 15:11:31,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:11:31,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:11:31,544 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:11:31,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-23 15:11:31,606 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 15:11:31,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:11:31,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-23 15:11:31,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:31,686 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:31,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:32,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129393465] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:32,169 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 15:11:32,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 10, 11, 10, 11] total 26 [2022-11-23 15:11:32,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145020014] [2022-11-23 15:11:32,169 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 15:11:32,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-23 15:11:32,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:11:32,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-23 15:11:32,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650 [2022-11-23 15:11:32,171 INFO L87 Difference]: Start difference. First operand 121 states and 137 transitions. Second operand has 26 states, 26 states have (on average 4.0) internal successors, (104), 23 states have internal predecessors, (104), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:11:34,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:34,101 INFO L93 Difference]: Finished difference Result 323 states and 382 transitions. [2022-11-23 15:11:34,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-23 15:11:34,102 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.0) internal successors, (104), 23 states have internal predecessors, (104), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2022-11-23 15:11:34,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:34,104 INFO L225 Difference]: With dead ends: 323 [2022-11-23 15:11:34,104 INFO L226 Difference]: Without dead ends: 247 [2022-11-23 15:11:34,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=835, Invalid=2027, Unknown=0, NotChecked=0, Total=2862 [2022-11-23 15:11:34,106 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 399 mSDsluCounter, 1839 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:34,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 1966 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 15:11:34,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-11-23 15:11:34,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 159. [2022-11-23 15:11:34,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 139 states have (on average 1.2517985611510791) internal successors, (174), 151 states have internal predecessors, (174), 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) [2022-11-23 15:11:34,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 182 transitions. [2022-11-23 15:11:34,126 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 182 transitions. Word has length 46 [2022-11-23 15:11:34,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:34,126 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 182 transitions. [2022-11-23 15:11:34,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.0) internal successors, (104), 23 states have internal predecessors, (104), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:11:34,127 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 182 transitions. [2022-11-23 15:11:34,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-23 15:11:34,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:34,128 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:34,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:34,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:34,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:34,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:34,736 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:11:34,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:34,736 INFO L85 PathProgramCache]: Analyzing trace with hash -321230200, now seen corresponding path program 2 times [2022-11-23 15:11:34,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:11:34,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220209367] [2022-11-23 15:11:34,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 15:11:34,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:34,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:11:34,740 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:11:34,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-23 15:11:34,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 15:11:34,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:11:34,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:11:34,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:34,796 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-11-23 15:11:34,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:11:34,797 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:11:34,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220209367] [2022-11-23 15:11:34,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220209367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:34,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:34,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:11:34,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257796634] [2022-11-23 15:11:34,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:34,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:11:34,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:11:34,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:11:34,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:11:34,802 INFO L87 Difference]: Start difference. First operand 159 states and 182 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:11:34,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:34,856 INFO L93 Difference]: Finished difference Result 165 states and 189 transitions. [2022-11-23 15:11:34,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:11:34,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 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 58 [2022-11-23 15:11:34,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:34,862 INFO L225 Difference]: With dead ends: 165 [2022-11-23 15:11:34,862 INFO L226 Difference]: Without dead ends: 164 [2022-11-23 15:11:34,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:11:34,863 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 2 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:34,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 152 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:11:34,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-23 15:11:34,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 158. [2022-11-23 15:11:34,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 139 states have (on average 1.2446043165467626) internal successors, (173), 150 states have internal predecessors, (173), 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) [2022-11-23 15:11:34,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 181 transitions. [2022-11-23 15:11:34,891 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 181 transitions. Word has length 58 [2022-11-23 15:11:34,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:34,892 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 181 transitions. [2022-11-23 15:11:34,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:11:34,892 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 181 transitions. [2022-11-23 15:11:34,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-23 15:11:34,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:34,894 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:34,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:35,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:35,103 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:11:35,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:35,103 INFO L85 PathProgramCache]: Analyzing trace with hash -321162674, now seen corresponding path program 1 times [2022-11-23 15:11:35,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:11:35,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900575476] [2022-11-23 15:11:35,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:35,104 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:35,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:11:35,105 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:11:35,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-23 15:11:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:35,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 15:11:35,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:35,442 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:35,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:36,226 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:36,226 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:11:36,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900575476] [2022-11-23 15:11:36,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900575476] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:36,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1295183732] [2022-11-23 15:11:36,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:36,229 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:11:36,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:11:36,232 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:11:36,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2022-11-23 15:11:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:36,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 15:11:36,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:36,488 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:36,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:36,851 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:36,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1295183732] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:36,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106499972] [2022-11-23 15:11:36,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:36,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:11:36,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:11:36,856 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:11:36,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-23 15:11:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:36,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-23 15:11:36,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:37,280 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:37,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:38,514 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:38,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106499972] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:38,515 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 15:11:38,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 11, 11] total 27 [2022-11-23 15:11:38,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475819015] [2022-11-23 15:11:38,515 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 15:11:38,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-23 15:11:38,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:11:38,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-23 15:11:38,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=469, Unknown=0, NotChecked=0, Total=702 [2022-11-23 15:11:38,518 INFO L87 Difference]: Start difference. First operand 158 states and 181 transitions. Second operand has 27 states, 27 states have (on average 4.7407407407407405) internal successors, (128), 27 states have internal predecessors, (128), 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) [2022-11-23 15:11:42,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:42,466 INFO L93 Difference]: Finished difference Result 490 states and 602 transitions. [2022-11-23 15:11:42,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-23 15:11:42,467 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.7407407407407405) internal successors, (128), 27 states have internal predecessors, (128), 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 58 [2022-11-23 15:11:42,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:42,469 INFO L225 Difference]: With dead ends: 490 [2022-11-23 15:11:42,470 INFO L226 Difference]: Without dead ends: 418 [2022-11-23 15:11:42,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=625, Invalid=1181, Unknown=0, NotChecked=0, Total=1806 [2022-11-23 15:11:42,471 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 802 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:42,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 1049 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-23 15:11:42,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-11-23 15:11:42,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 160. [2022-11-23 15:11:42,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 141 states have (on average 1.1914893617021276) internal successors, (168), 152 states have internal predecessors, (168), 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) [2022-11-23 15:11:42,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 176 transitions. [2022-11-23 15:11:42,496 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 176 transitions. Word has length 58 [2022-11-23 15:11:42,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:42,496 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 176 transitions. [2022-11-23 15:11:42,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.7407407407407405) internal successors, (128), 27 states have internal predecessors, (128), 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) [2022-11-23 15:11:42,496 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 176 transitions. [2022-11-23 15:11:42,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-23 15:11:42,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:42,498 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:42,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:42,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:42,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-11-23 15:11:43,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:11:43,110 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:11:43,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:43,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1322135424, now seen corresponding path program 3 times [2022-11-23 15:11:43,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:11:43,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568430520] [2022-11-23 15:11:43,111 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 15:11:43,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:43,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:11:43,112 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:11:43,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-23 15:11:43,190 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2022-11-23 15:11:43,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:11:43,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-23 15:11:43,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:43,535 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:43,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:44,658 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:44,658 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:11:44,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [568430520] [2022-11-23 15:11:44,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [568430520] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:44,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [866926129] [2022-11-23 15:11:44,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 15:11:44,659 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:11:44,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:11:44,667 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:11:44,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2022-11-23 15:11:44,847 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2022-11-23 15:11:44,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:11:44,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-23 15:11:44,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:44,997 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:44,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:45,398 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:45,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [866926129] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:45,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980915323] [2022-11-23 15:11:45,399 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 15:11:45,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:11:45,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:11:45,400 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:11:45,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-23 15:11:45,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2022-11-23 15:11:45,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:11:45,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-23 15:11:45,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:45,681 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:45,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:46,077 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:46,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980915323] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:46,078 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 15:11:46,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 18, 19, 18, 19] total 35 [2022-11-23 15:11:46,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881855454] [2022-11-23 15:11:46,078 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 15:11:46,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-23 15:11:46,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:11:46,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-23 15:11:46,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=886, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 15:11:46,081 INFO L87 Difference]: Start difference. First operand 160 states and 176 transitions. Second operand has 35 states, 35 states have (on average 4.457142857142857) internal successors, (156), 33 states have internal predecessors, (156), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:11:54,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:54,526 INFO L93 Difference]: Finished difference Result 564 states and 669 transitions. [2022-11-23 15:11:54,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-11-23 15:11:54,527 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.457142857142857) internal successors, (156), 33 states have internal predecessors, (156), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-11-23 15:11:54,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:54,529 INFO L225 Difference]: With dead ends: 564 [2022-11-23 15:11:54,529 INFO L226 Difference]: Without dead ends: 489 [2022-11-23 15:11:54,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 512 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2296 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=2711, Invalid=7189, Unknown=0, NotChecked=0, Total=9900 [2022-11-23 15:11:54,533 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1215 mSDsluCounter, 3191 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 3430 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:54,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 3430 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-23 15:11:54,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2022-11-23 15:11:54,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 238. [2022-11-23 15:11:54,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 219 states have (on average 1.1963470319634704) internal successors, (262), 230 states have internal predecessors, (262), 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) [2022-11-23 15:11:54,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 270 transitions. [2022-11-23 15:11:54,563 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 270 transitions. Word has length 86 [2022-11-23 15:11:54,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:54,563 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 270 transitions. [2022-11-23 15:11:54,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.457142857142857) internal successors, (156), 33 states have internal predecessors, (156), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:11:54,564 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 270 transitions. [2022-11-23 15:11:54,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-23 15:11:54,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:54,565 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:54,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:54,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-23 15:11:54,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2022-11-23 15:11:55,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:55,168 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:11:55,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:55,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1110203058, now seen corresponding path program 2 times [2022-11-23 15:11:55,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:11:55,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244647886] [2022-11-23 15:11:55,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 15:11:55,169 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:11:55,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:11:55,170 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:11:55,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-23 15:11:55,228 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 15:11:55,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:11:55,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 15:11:55,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:55,960 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:55,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:58,051 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:58,051 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:11:58,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244647886] [2022-11-23 15:11:58,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244647886] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:58,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1738623664] [2022-11-23 15:11:58,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 15:11:58,052 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:11:58,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:11:58,053 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:11:58,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2022-11-23 15:11:58,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 15:11:58,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:11:58,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 15:11:58,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:58,455 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:58,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:11:59,189 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:59,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1738623664] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:11:59,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186865892] [2022-11-23 15:11:59,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 15:11:59,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:11:59,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:11:59,191 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:11:59,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-23 15:11:59,274 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 15:11:59,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:11:59,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-23 15:11:59,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:11:59,887 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:11:59,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:12:03,777 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:12:03,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186865892] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:12:03,777 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 15:12:03,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18, 18, 19, 19] total 51 [2022-11-23 15:12:03,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134474915] [2022-11-23 15:12:03,777 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 15:12:03,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-11-23 15:12:03,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:12:03,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-11-23 15:12:03,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=789, Invalid=1761, Unknown=0, NotChecked=0, Total=2550 [2022-11-23 15:12:03,780 INFO L87 Difference]: Start difference. First operand 238 states and 270 transitions. Second operand has 51 states, 51 states have (on average 4.862745098039215) internal successors, (248), 51 states have internal predecessors, (248), 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) [2022-11-23 15:12:18,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:12:18,259 INFO L93 Difference]: Finished difference Result 859 states and 1072 transitions. [2022-11-23 15:12:18,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-23 15:12:18,263 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 4.862745098039215) internal successors, (248), 51 states have internal predecessors, (248), 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 98 [2022-11-23 15:12:18,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:12:18,266 INFO L225 Difference]: With dead ends: 859 [2022-11-23 15:12:18,267 INFO L226 Difference]: Without dead ends: 787 [2022-11-23 15:12:18,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=2273, Invalid=4533, Unknown=0, NotChecked=0, Total=6806 [2022-11-23 15:12:18,269 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 1715 mSDsluCounter, 2662 mSDsCounter, 0 mSdLazyCounter, 4475 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 4968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 4475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:12:18,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1715 Valid, 2810 Invalid, 4968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 4475 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-11-23 15:12:18,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-11-23 15:12:18,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 240. [2022-11-23 15:12:18,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 221 states have (on average 1.1266968325791855) internal successors, (249), 232 states have internal predecessors, (249), 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) [2022-11-23 15:12:18,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 257 transitions. [2022-11-23 15:12:18,330 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 257 transitions. Word has length 98 [2022-11-23 15:12:18,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:12:18,331 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 257 transitions. [2022-11-23 15:12:18,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 4.862745098039215) internal successors, (248), 51 states have internal predecessors, (248), 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) [2022-11-23 15:12:18,331 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 257 transitions. [2022-11-23 15:12:18,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-23 15:12:18,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:12:18,333 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:12:18,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2022-11-23 15:12:18,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2022-11-23 15:12:18,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2022-11-23 15:12:18,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:12:18,935 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:12:18,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:12:18,936 INFO L85 PathProgramCache]: Analyzing trace with hash -2098489280, now seen corresponding path program 4 times [2022-11-23 15:12:18,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:12:18,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57193765] [2022-11-23 15:12:18,937 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 15:12:18,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:12:18,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:12:18,938 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:12:18,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-23 15:12:19,017 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 15:12:19,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:12:19,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-23 15:12:19,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:12:19,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:12:19,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:12:23,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:12:23,125 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:12:23,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57193765] [2022-11-23 15:12:23,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57193765] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:12:23,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1776308700] [2022-11-23 15:12:23,125 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 15:12:23,125 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:12:23,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:12:23,132 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:12:23,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2022-11-23 15:12:23,372 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 15:12:23,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:12:23,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-23 15:12:23,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:12:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:12:23,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:12:24,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:12:24,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1776308700] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:12:24,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708940408] [2022-11-23 15:12:24,090 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 15:12:24,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:12:24,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:12:24,093 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:12:24,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-11-23 15:12:24,173 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 15:12:24,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:12:24,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-23 15:12:24,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:12:24,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:12:24,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:12:24,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:12:24,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708940408] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:12:24,885 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 15:12:24,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27, 27, 27, 27] total 53 [2022-11-23 15:12:24,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073146703] [2022-11-23 15:12:24,885 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 15:12:24,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-23 15:12:24,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:12:24,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-23 15:12:24,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=731, Invalid=2131, Unknown=0, NotChecked=0, Total=2862 [2022-11-23 15:12:24,888 INFO L87 Difference]: Start difference. First operand 240 states and 257 transitions. Second operand has 54 states, 53 states have (on average 4.886792452830188) internal successors, (259), 52 states have internal predecessors, (259), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:13:14,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:13:14,983 INFO L93 Difference]: Finished difference Result 490 states and 558 transitions. [2022-11-23 15:13:14,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-11-23 15:13:14,985 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 4.886792452830188) internal successors, (259), 52 states have internal predecessors, (259), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 136 [2022-11-23 15:13:14,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:13:14,987 INFO L225 Difference]: With dead ends: 490 [2022-11-23 15:13:14,987 INFO L226 Difference]: Without dead ends: 486 [2022-11-23 15:13:14,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 894 GetRequests, 766 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2112 ImplicationChecksByTransitivity, 47.4s TimeCoverageRelationStatistics Valid=4535, Invalid=12235, Unknown=0, NotChecked=0, Total=16770 [2022-11-23 15:13:14,992 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 1417 mSDsluCounter, 4144 mSDsCounter, 0 mSdLazyCounter, 4148 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 4257 SdHoareTripleChecker+Invalid, 4350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 4148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:13:14,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 4257 Invalid, 4350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 4148 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-23 15:13:14,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-11-23 15:13:15,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 364. [2022-11-23 15:13:15,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 345 states have (on average 1.2115942028985507) internal successors, (418), 356 states have internal predecessors, (418), 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) [2022-11-23 15:13:15,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 426 transitions. [2022-11-23 15:13:15,085 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 426 transitions. Word has length 136 [2022-11-23 15:13:15,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:13:15,085 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 426 transitions. [2022-11-23 15:13:15,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 4.886792452830188) internal successors, (259), 52 states have internal predecessors, (259), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:13:15,086 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 426 transitions. [2022-11-23 15:13:15,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-23 15:13:15,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:13:15,087 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, 1, 1, 1] [2022-11-23 15:13:15,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2022-11-23 15:13:15,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2022-11-23 15:13:15,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-11-23 15:13:15,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:13:15,696 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:13:15,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:13:15,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1305368822, now seen corresponding path program 1 times [2022-11-23 15:13:15,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:13:15,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501019627] [2022-11-23 15:13:15,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:13:15,698 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:13:15,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:13:15,699 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:13:15,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-23 15:13:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:13:15,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:13:15,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:13:15,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1393 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1385 trivial. 0 not checked. [2022-11-23 15:13:15,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:13:15,881 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:13:15,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501019627] [2022-11-23 15:13:15,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [501019627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:13:15,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:13:15,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:13:15,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530392993] [2022-11-23 15:13:15,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:13:15,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:13:15,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:13:15,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:13:15,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:13:15,884 INFO L87 Difference]: Start difference. First operand 364 states and 426 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-11-23 15:13:16,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:13:16,242 INFO L93 Difference]: Finished difference Result 382 states and 447 transitions. [2022-11-23 15:13:16,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:13:16,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 152 [2022-11-23 15:13:16,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:13:16,245 INFO L225 Difference]: With dead ends: 382 [2022-11-23 15:13:16,245 INFO L226 Difference]: Without dead ends: 379 [2022-11-23 15:13:16,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:13:16,246 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 63 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:13:16,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 171 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:13:16,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-11-23 15:13:16,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 371. [2022-11-23 15:13:16,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 352 states have (on average 1.2102272727272727) internal successors, (426), 363 states have internal predecessors, (426), 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) [2022-11-23 15:13:16,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 434 transitions. [2022-11-23 15:13:16,374 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 434 transitions. Word has length 152 [2022-11-23 15:13:16,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:13:16,375 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 434 transitions. [2022-11-23 15:13:16,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-11-23 15:13:16,375 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 434 transitions. [2022-11-23 15:13:16,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-23 15:13:16,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:13:16,377 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:13:16,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-23 15:13:16,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:13:16,590 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 15:13:16,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:13:16,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1608575873, now seen corresponding path program 1 times [2022-11-23 15:13:16,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:13:16,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836666425] [2022-11-23 15:13:16,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:13:16,591 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:13:16,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:13:16,592 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:13:16,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-23 15:13:16,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:13:16,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:13:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:13:16,811 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 15:13:16,812 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:13:16,813 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2022-11-23 15:13:16,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2022-11-23 15:13:16,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2022-11-23 15:13:16,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2022-11-23 15:13:16,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2022-11-23 15:13:16,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2022-11-23 15:13:16,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2022-11-23 15:13:16,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2022-11-23 15:13:16,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2022-11-23 15:13:16,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2022-11-23 15:13:16,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2022-11-23 15:13:16,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2022-11-23 15:13:16,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2022-11-23 15:13:16,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2022-11-23 15:13:16,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2022-11-23 15:13:16,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2022-11-23 15:13:16,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2022-11-23 15:13:16,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2022-11-23 15:13:16,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2022-11-23 15:13:16,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2022-11-23 15:13:16,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2022-11-23 15:13:16,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2022-11-23 15:13:16,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2022-11-23 15:13:16,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2022-11-23 15:13:16,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-23 15:13:17,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:13:17,034 INFO L444 BasicCegarLoop]: Path program histogram: [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:13:17,038 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:13:17,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:13:17 BoogieIcfgContainer [2022-11-23 15:13:17,100 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:13:17,101 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:13:17,101 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:13:17,101 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:13:17,102 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:20" (3/4) ... [2022-11-23 15:13:17,104 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 15:13:17,195 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:13:17,195 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:13:17,196 INFO L158 Benchmark]: Toolchain (without parser) took 117694.99ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 64.3MB in the beginning and 62.8MB in the end (delta: 1.5MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2022-11-23 15:13:17,196 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 58.7MB. Free memory is still 36.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:13:17,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 510.63ms. Allocated memory is still 83.9MB. Free memory was 64.3MB in the beginning and 50.5MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 15:13:17,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.71ms. Allocated memory is still 83.9MB. Free memory was 50.5MB in the beginning and 48.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:13:17,197 INFO L158 Benchmark]: Boogie Preprocessor took 53.72ms. Allocated memory is still 83.9MB. Free memory was 48.7MB in the beginning and 46.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:13:17,198 INFO L158 Benchmark]: RCFGBuilder took 710.60ms. Allocated memory is still 83.9MB. Free memory was 46.8MB in the beginning and 49.3MB in the end (delta: -2.5MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-11-23 15:13:17,198 INFO L158 Benchmark]: TraceAbstraction took 116251.31ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 48.5MB in the beginning and 30.1MB in the end (delta: 18.4MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2022-11-23 15:13:17,198 INFO L158 Benchmark]: Witness Printer took 94.49ms. Allocated memory is still 100.7MB. Free memory was 30.1MB in the beginning and 62.8MB in the end (delta: -32.7MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2022-11-23 15:13:17,200 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 58.7MB. Free memory is still 36.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 510.63ms. Allocated memory is still 83.9MB. Free memory was 64.3MB in the beginning and 50.5MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.71ms. Allocated memory is still 83.9MB. Free memory was 50.5MB in the beginning and 48.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.72ms. Allocated memory is still 83.9MB. Free memory was 48.7MB in the beginning and 46.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 710.60ms. Allocated memory is still 83.9MB. Free memory was 46.8MB in the beginning and 49.3MB in the end (delta: -2.5MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * TraceAbstraction took 116251.31ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 48.5MB in the beginning and 30.1MB in the end (delta: 18.4MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. * Witness Printer took 94.49ms. Allocated memory is still 100.7MB. Free memory was 30.1MB in the beginning and 62.8MB in the end (delta: -32.7MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 77]: integer overflow possible integer overflow possible We found a 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 ; [L238] CALL, EXPR base2flt(0, 0) VAL [unknown-#in~e-unknown=0, unknown-#in~m-unknown=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [e=0, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [__retres4=0, e=0, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=0] [L80] return (__retres4); VAL [\result=0, __retres4=0, e=0, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=0] [L238] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0] [L238] zero = base2flt(0, 0) [L239] CALL, EXPR base2flt(1, 0) VAL [unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [e=0, m=1, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L29] COND FALSE !(! m) VAL [e=0, m=1, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L35] COND TRUE m < 1U << 24U VAL [e=0, m=1, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=0, m=1, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=0, m=1, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-1, m=2, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-1, m=2, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-1, m=2, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-1, m=2, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-2, m=4, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-2, m=4, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-2, m=4, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-2, m=4, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-3, m=8, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-3, m=8, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-3, m=8, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-3, m=8, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-4, m=16, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-4, m=16, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-4, m=16, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-4, m=16, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-5, m=32, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-5, m=32, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-5, m=32, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-5, m=32, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-6, m=64, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-6, m=64, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-6, m=64, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-6, m=64, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-7, m=128, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-7, m=128, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-7, m=128, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-7, m=128, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-8, m=256, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-8, m=256, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-8, m=256, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-8, m=256, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-9, m=512, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-9, m=512, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-9, m=512, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-9, m=512, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-10, m=1024, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-10, m=1024, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-10, m=1024, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-10, m=1024, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-11, m=2048, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-11, m=2048, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-11, m=2048, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-11, m=2048, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-12, m=4096, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-12, m=4096, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-12, m=4096, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-12, m=4096, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-13, m=8192, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-13, m=8192, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-13, m=8192, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-13, m=8192, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-14, m=16384, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-14, m=16384, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-14, m=16384, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-14, m=16384, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-15, m=32768, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-15, m=32768, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-15, m=32768, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-15, m=32768, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-16, m=65536, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-16, m=65536, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-16, m=65536, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-16, m=65536, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-17, m=131072, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-17, m=131072, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-17, m=131072, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-17, m=131072, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-18, m=262144, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-18, m=262144, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-18, m=262144, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-18, m=262144, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-19, m=524288, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-19, m=524288, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-19, m=524288, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-19, m=524288, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-20, m=1048576, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-20, m=1048576, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-20, m=1048576, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-20, m=1048576, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-21, m=2097152, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-21, m=2097152, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-21, m=2097152, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-21, m=2097152, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-22, m=4194304, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-22, m=4194304, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-22, m=4194304, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-22, m=4194304, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-23, m=8388608, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-23, m=8388608, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-23, m=8388608, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-23, m=8388608, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-24, m=16777216, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND FALSE !(m < 1U << 24U) VAL [e=-24, m=16777216, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L76] m = m & ~ (1U << 24U) VAL [e=-24, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L77] EXPR e + 128 VAL [e=-24, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L77] EXPR (e + 128) << 24U [L77] res = m | (unsigned int )((e + 128) << 24U) [L78] __retres4 = res VAL [__retres4=1744830464, e=-24, m=0, res=1744830464, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L80] return (__retres4); VAL [\result=1744830464, __retres4=1744830464, e=-24, m=0, res=1744830464, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L239] RET, EXPR base2flt(1, 0) VAL [base2flt(1, 0)=1744830464, zero=0] [L239] one = base2flt(1, 0) [L240] CALL base2flt(ma, ea) VAL [unknown-#in~e-unknown=0, unknown-#in~m-unknown=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [e=0, m=16777216, unknown-#in~e-unknown=0, unknown-#in~m-unknown=16777216] [L29] COND FALSE !(! m) VAL [e=0, m=16777216, unknown-#in~e-unknown=0, unknown-#in~m-unknown=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [e=0, m=16777216, unknown-#in~e-unknown=0, unknown-#in~m-unknown=16777216] [L57] COND TRUE 1 VAL [e=0, m=16777216, unknown-#in~e-unknown=0, unknown-#in~m-unknown=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [e=0, m=16777216, unknown-#in~e-unknown=0, unknown-#in~m-unknown=16777216] [L76] m = m & ~ (1U << 24U) VAL [e=0, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=16777216] [L77] EXPR e + 128 VAL [e=0, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=16777216] [L77] (e + 128) << 24U VAL [e=0, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=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: 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. - 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, 99 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 116.1s, OverallIterations: 16, TraceHistogramMax: 24, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 82.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6376 SdHoareTripleChecker+Valid, 19.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6376 mSDsluCounter, 16472 SdHoareTripleChecker+Invalid, 17.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14903 mSDsCounter, 1130 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12892 IncrementalHoareTripleChecker+Invalid, 14022 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1130 mSolverCounterUnsat, 1569 mSDtfsCounter, 12892 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3658 GetRequests, 3184 SyntacticMatches, 0 SemanticMatches, 474 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5981 ImplicationChecksByTransitivity, 72.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=371occurred in iteration=15, InterpolantAutomatonStates: 339, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 15 MinimizatonAttempts, 1512 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 23.4s InterpolantComputationTime, 1968 NumberOfCodeBlocks, 1921 NumberOfCodeBlocksAsserted, 77 NumberOfCheckSat, 3285 ConstructedInterpolants, 8 QuantifiedInterpolants, 23436 SizeOfPredicates, 40 NumberOfNonLiveVariables, 2948 ConjunctsInSsa, 308 ConjunctsInUnsatCore, 55 InterpolantComputations, 7 PerfectInterpolantSequences, 1736/16718 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 proved your program to be incorrect! [2022-11-23 15:13:17,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92bba9-bf1a-4190-b557-90cb1bf4931b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)