./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs --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 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:50:52,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:50:52,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:50:52,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:50:52,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:50:52,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:50:52,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:50:52,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:50:52,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:50:52,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:50:52,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:50:52,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:50:52,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:50:52,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:50:52,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:50:52,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:50:52,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:50:52,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:50:52,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:50:52,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:50:52,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:50:52,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:50:52,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:50:52,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:50:52,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:50:52,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:50:52,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:50:52,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:50:52,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:50:52,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:50:52,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:50:52,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:50:52,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:50:52,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:50:52,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:50:52,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:50:52,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:50:52,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:50:52,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:50:52,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:50:52,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:50:52,241 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-19 14:50:52,284 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:50:52,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:50:52,286 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:50:52,287 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:50:52,287 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:50:52,287 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:50:52,288 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:50:52,288 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:50:52,288 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:50:52,288 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:50:52,290 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:50:52,290 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:50:52,290 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:50:52,291 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:50:52,291 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:50:52,291 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:50:52,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:50:52,293 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:50:52,293 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 14:50:52,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:50:52,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:50:52,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:50:52,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:50:52,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:50:52,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:50:52,295 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-19 14:50:52,295 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:50:52,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:50:52,296 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:50:52,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:50:52,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:50:52,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:50:52,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:50:52,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:50:52,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:50:52,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:50:52,300 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:50:52,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:50:52,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:50:52,301 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:50:52,301 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:50:52,301 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 [2021-11-19 14:50:52,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:50:52,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:50:52,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:50:52,725 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:50:52,726 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:50:52,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2021-11-19 14:50:52,822 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/data/d5230d860/0bfd9663df8f466db526e91545212c6a/FLAG84ceee213 [2021-11-19 14:50:53,386 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:50:53,387 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2021-11-19 14:50:53,397 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/data/d5230d860/0bfd9663df8f466db526e91545212c6a/FLAG84ceee213 [2021-11-19 14:50:53,742 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/data/d5230d860/0bfd9663df8f466db526e91545212c6a [2021-11-19 14:50:53,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:50:53,763 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:50:53,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:50:53,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:50:53,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:50:53,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:50:53" (1/1) ... [2021-11-19 14:50:53,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2327acb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:53, skipping insertion in model container [2021-11-19 14:50:53,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:50:53" (1/1) ... [2021-11-19 14:50:53,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:50:53,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:50:54,000 WARN L230 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_863e144b-b649-4108-b28d-c509a906e65e/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2021-11-19 14:50:54,070 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:50:54,081 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:50:54,096 WARN L230 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_863e144b-b649-4108-b28d-c509a906e65e/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2021-11-19 14:50:54,138 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:50:54,159 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:50:54,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:54 WrapperNode [2021-11-19 14:50:54,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:50:54,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:50:54,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:50:54,164 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:50:54,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:54" (1/1) ... [2021-11-19 14:50:54,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:54" (1/1) ... [2021-11-19 14:50:54,255 INFO L137 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 124 [2021-11-19 14:50:54,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:50:54,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:50:54,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:50:54,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:50:54,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:54" (1/1) ... [2021-11-19 14:50:54,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:54" (1/1) ... [2021-11-19 14:50:54,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:54" (1/1) ... [2021-11-19 14:50:54,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:54" (1/1) ... [2021-11-19 14:50:54,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:54" (1/1) ... [2021-11-19 14:50:54,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:54" (1/1) ... [2021-11-19 14:50:54,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:54" (1/1) ... [2021-11-19 14:50:54,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:50:54,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:50:54,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:50:54,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:50:54,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:54" (1/1) ... [2021-11-19 14:50:54,308 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:50:54,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:50:54,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:50:54,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:50:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:50:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:50:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-11-19 14:50:54,450 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-11-19 14:50:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:50:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:50:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:50:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:50:54,558 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:50:54,560 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:50:55,028 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:50:55,118 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:50:55,118 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 14:50:55,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:50:55 BoogieIcfgContainer [2021-11-19 14:50:55,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:50:55,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:50:55,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:50:55,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:50:55,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:50:53" (1/3) ... [2021-11-19 14:50:55,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5d7668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:50:55, skipping insertion in model container [2021-11-19 14:50:55,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:50:54" (2/3) ... [2021-11-19 14:50:55,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5d7668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:50:55, skipping insertion in model container [2021-11-19 14:50:55,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:50:55" (3/3) ... [2021-11-19 14:50:55,133 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_3a.c.cil.c [2021-11-19 14:50:55,139 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:50:55,139 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2021-11-19 14:50:55,196 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:50:55,209 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:50:55,209 INFO L340 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-11-19 14:50:55,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 64 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-19 14:50:55,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 14:50:55,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:55,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:50:55,263 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:50:55,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:55,277 INFO L85 PathProgramCache]: Analyzing trace with hash 569497008, now seen corresponding path program 1 times [2021-11-19 14:50:55,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:50:55,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769832233] [2021-11-19 14:50:55,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:55,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:50:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:55,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:50:55,455 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:50:55,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769832233] [2021-11-19 14:50:55,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769832233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:55,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:50:55,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:50:55,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957298582] [2021-11-19 14:50:55,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:55,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:50:55,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:50:55,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:50:55,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:50:55,505 INFO L87 Difference]: Start difference. First operand has 71 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 64 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:50:55,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:55,565 INFO L93 Difference]: Finished difference Result 138 states and 177 transitions. [2021-11-19 14:50:55,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:50:55,568 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 [2021-11-19 14:50:55,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:55,577 INFO L225 Difference]: With dead ends: 138 [2021-11-19 14:50:55,577 INFO L226 Difference]: Without dead ends: 62 [2021-11-19 14:50:55,582 INFO L932 BasicCegarLoop]: 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 [2021-11-19 14:50:55,587 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:55,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:50:55,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-19 14:50:55,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-11-19 14:50:55,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 41 states have (on average 1.5365853658536586) internal successors, (63), 56 states have internal predecessors, (63), 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) [2021-11-19 14:50:55,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2021-11-19 14:50:55,640 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 71 transitions. Word has length 8 [2021-11-19 14:50:55,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:55,641 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 71 transitions. [2021-11-19 14:50:55,641 INFO L471 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) [2021-11-19 14:50:55,642 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 71 transitions. [2021-11-19 14:50:55,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 14:50:55,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:55,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:50:55,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:50:55,645 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:50:55,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:55,646 INFO L85 PathProgramCache]: Analyzing trace with hash 568405826, now seen corresponding path program 1 times [2021-11-19 14:50:55,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:50:55,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951535648] [2021-11-19 14:50:55,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:55,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:50:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:55,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:50:55,714 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:50:55,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951535648] [2021-11-19 14:50:55,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951535648] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:55,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:50:55,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 14:50:55,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929954544] [2021-11-19 14:50:55,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:55,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:50:55,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:50:55,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:50:55,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:50:55,719 INFO L87 Difference]: Start difference. First operand 62 states and 71 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) [2021-11-19 14:50:55,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:55,840 INFO L93 Difference]: Finished difference Result 160 states and 194 transitions. [2021-11-19 14:50:55,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:50:55,841 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 [2021-11-19 14:50:55,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:55,846 INFO L225 Difference]: With dead ends: 160 [2021-11-19 14:50:55,846 INFO L226 Difference]: Without dead ends: 100 [2021-11-19 14:50:55,848 INFO L932 BasicCegarLoop]: 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 [2021-11-19 14:50:55,854 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 53 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:55,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 167 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:50:55,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-11-19 14:50:55,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 92. [2021-11-19 14:50:55,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.5) internal successors, (105), 85 states have internal predecessors, (105), 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) [2021-11-19 14:50:55,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 113 transitions. [2021-11-19 14:50:55,895 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 113 transitions. Word has length 8 [2021-11-19 14:50:55,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:55,896 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 113 transitions. [2021-11-19 14:50:55,896 INFO L471 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) [2021-11-19 14:50:55,896 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 113 transitions. [2021-11-19 14:50:55,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-19 14:50:55,907 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:55,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:50:55,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 14:50:55,908 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:50:55,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:55,910 INFO L85 PathProgramCache]: Analyzing trace with hash -479290295, now seen corresponding path program 1 times [2021-11-19 14:50:55,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:50:55,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390692763] [2021-11-19 14:50:55,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:55,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:50:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:56,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:50:56,041 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:50:56,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390692763] [2021-11-19 14:50:56,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390692763] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:56,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:50:56,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 14:50:56,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779234875] [2021-11-19 14:50:56,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:56,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:50:56,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:50:56,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:50:56,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:50:56,053 INFO L87 Difference]: Start difference. First operand 92 states and 113 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) [2021-11-19 14:50:56,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:56,246 INFO L93 Difference]: Finished difference Result 108 states and 127 transitions. [2021-11-19 14:50:56,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:50:56,247 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 [2021-11-19 14:50:56,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:56,249 INFO L225 Difference]: With dead ends: 108 [2021-11-19 14:50:56,250 INFO L226 Difference]: Without dead ends: 106 [2021-11-19 14:50:56,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:50:56,252 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 66 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:56,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 223 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:50:56,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-11-19 14:50:56,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 94. [2021-11-19 14:50:56,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.4722222222222223) internal successors, (106), 87 states have internal predecessors, (106), 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) [2021-11-19 14:50:56,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 114 transitions. [2021-11-19 14:50:56,273 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 114 transitions. Word has length 12 [2021-11-19 14:50:56,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:56,273 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 114 transitions. [2021-11-19 14:50:56,274 INFO L471 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) [2021-11-19 14:50:56,274 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 114 transitions. [2021-11-19 14:50:56,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-19 14:50:56,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:56,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:50:56,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 14:50:56,276 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:50:56,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:56,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1973097156, now seen corresponding path program 1 times [2021-11-19 14:50:56,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:50:56,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899064385] [2021-11-19 14:50:56,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:56,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:50:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:56,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:50:56,335 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:50:56,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899064385] [2021-11-19 14:50:56,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899064385] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:56,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:50:56,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 14:50:56,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945717378] [2021-11-19 14:50:56,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:56,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:50:56,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:50:56,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:50:56,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:50:56,338 INFO L87 Difference]: Start difference. First operand 94 states and 114 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (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) [2021-11-19 14:50:56,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:56,477 INFO L93 Difference]: Finished difference Result 204 states and 248 transitions. [2021-11-19 14:50:56,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:50:56,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-19 14:50:56,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:56,480 INFO L225 Difference]: With dead ends: 204 [2021-11-19 14:50:56,480 INFO L226 Difference]: Without dead ends: 112 [2021-11-19 14:50:56,482 INFO L932 BasicCegarLoop]: 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 [2021-11-19 14:50:56,484 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 87 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:56,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 177 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:50:56,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-11-19 14:50:56,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 98. [2021-11-19 14:50:56,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 76 states have (on average 1.4473684210526316) internal successors, (110), 91 states have internal predecessors, (110), 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) [2021-11-19 14:50:56,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 118 transitions. [2021-11-19 14:50:56,504 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 118 transitions. Word has length 13 [2021-11-19 14:50:56,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:56,504 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 118 transitions. [2021-11-19 14:50:56,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:50:56,505 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 118 transitions. [2021-11-19 14:50:56,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-19 14:50:56,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:56,507 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:50:56,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-19 14:50:56,507 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:50:56,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:56,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1639843504, now seen corresponding path program 1 times [2021-11-19 14:50:56,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:50:56,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143130315] [2021-11-19 14:50:56,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:56,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:50:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:56,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 14:50:56,556 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:50:56,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143130315] [2021-11-19 14:50:56,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143130315] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:56,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:50:56,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:50:56,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659075758] [2021-11-19 14:50:56,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:56,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:50:56,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:50:56,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:50:56,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:50:56,560 INFO L87 Difference]: Start difference. First operand 98 states and 118 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, (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) [2021-11-19 14:50:56,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:56,636 INFO L93 Difference]: Finished difference Result 102 states and 124 transitions. [2021-11-19 14:50:56,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:50:56,637 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, (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 14 [2021-11-19 14:50:56,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:56,640 INFO L225 Difference]: With dead ends: 102 [2021-11-19 14:50:56,641 INFO L226 Difference]: Without dead ends: 101 [2021-11-19 14:50:56,645 INFO L932 BasicCegarLoop]: 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 [2021-11-19 14:50:56,652 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 3 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:56,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 123 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:50:56,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-19 14:50:56,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2021-11-19 14:50:56,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 75 states have (on average 1.4266666666666667) internal successors, (107), 89 states have internal predecessors, (107), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-19 14:50:56,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 115 transitions. [2021-11-19 14:50:56,681 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 115 transitions. Word has length 14 [2021-11-19 14:50:56,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:56,682 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 115 transitions. [2021-11-19 14:50:56,682 INFO L471 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, (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) [2021-11-19 14:50:56,682 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 115 transitions. [2021-11-19 14:50:56,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-19 14:50:56,683 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:56,684 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:50:56,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-19 14:50:56,684 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:50:56,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:56,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1639845682, now seen corresponding path program 1 times [2021-11-19 14:50:56,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:50:56,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224680383] [2021-11-19 14:50:56,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:56,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:50:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:56,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:50:56,782 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:50:56,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224680383] [2021-11-19 14:50:56,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224680383] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:50:56,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631445303] [2021-11-19 14:50:56,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:56,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:50:56,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:50:56,785 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:50:56,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 14:50:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:56,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:50:56,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:50:56,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:50:56,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:50:57,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:50:57,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631445303] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:57,081 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:50:57,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 8 [2021-11-19 14:50:57,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264743327] [2021-11-19 14:50:57,081 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:57,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:50:57,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:50:57,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:50:57,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:50:57,083 INFO L87 Difference]: Start difference. First operand 96 states and 115 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2021-11-19 14:50:57,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:57,176 INFO L93 Difference]: Finished difference Result 116 states and 144 transitions. [2021-11-19 14:50:57,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:50:57,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 14 [2021-11-19 14:50:57,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:57,180 INFO L225 Difference]: With dead ends: 116 [2021-11-19 14:50:57,180 INFO L226 Difference]: Without dead ends: 115 [2021-11-19 14:50:57,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:50:57,188 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 20 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:57,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 195 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:50:57,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-19 14:50:57,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 98. [2021-11-19 14:50:57,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 77 states have (on average 1.4155844155844155) internal successors, (109), 91 states have internal predecessors, (109), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-19 14:50:57,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 117 transitions. [2021-11-19 14:50:57,226 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 117 transitions. Word has length 14 [2021-11-19 14:50:57,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:57,227 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 117 transitions. [2021-11-19 14:50:57,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2021-11-19 14:50:57,227 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 117 transitions. [2021-11-19 14:50:57,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-19 14:50:57,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:57,232 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:50:57,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:50:57,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-19 14:50:57,445 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:50:57,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:57,447 INFO L85 PathProgramCache]: Analyzing trace with hash -381684116, now seen corresponding path program 1 times [2021-11-19 14:50:57,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:50:57,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167740848] [2021-11-19 14:50:57,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:57,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:50:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:57,502 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 14:50:57,503 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:50:57,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167740848] [2021-11-19 14:50:57,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167740848] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:57,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:50:57,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 14:50:57,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104807173] [2021-11-19 14:50:57,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:57,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:50:57,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:50:57,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:50:57,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:50:57,506 INFO L87 Difference]: Start difference. First operand 98 states and 117 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (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) [2021-11-19 14:50:57,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:57,621 INFO L93 Difference]: Finished difference Result 136 states and 164 transitions. [2021-11-19 14:50:57,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:50:57,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (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 20 [2021-11-19 14:50:57,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:57,625 INFO L225 Difference]: With dead ends: 136 [2021-11-19 14:50:57,626 INFO L226 Difference]: Without dead ends: 134 [2021-11-19 14:50:57,627 INFO L932 BasicCegarLoop]: 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 [2021-11-19 14:50:57,628 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 86 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:57,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 176 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:50:57,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-19 14:50:57,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 116. [2021-11-19 14:50:57,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 94 states have (on average 1.4361702127659575) internal successors, (135), 108 states have internal predecessors, (135), 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) [2021-11-19 14:50:57,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 143 transitions. [2021-11-19 14:50:57,666 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 143 transitions. Word has length 20 [2021-11-19 14:50:57,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:57,666 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 143 transitions. [2021-11-19 14:50:57,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (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) [2021-11-19 14:50:57,667 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 143 transitions. [2021-11-19 14:50:57,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-19 14:50:57,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:57,668 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:50:57,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-19 14:50:57,669 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:50:57,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:57,670 INFO L85 PathProgramCache]: Analyzing trace with hash -404117582, now seen corresponding path program 1 times [2021-11-19 14:50:57,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:50:57,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198560478] [2021-11-19 14:50:57,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:57,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:50:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:57,754 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 14:50:57,759 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:50:57,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198560478] [2021-11-19 14:50:57,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198560478] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:57,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:50:57,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 14:50:57,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125308040] [2021-11-19 14:50:57,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:57,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:50:57,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:50:57,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:50:57,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:50:57,768 INFO L87 Difference]: Start difference. First operand 116 states and 143 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-11-19 14:50:57,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:57,837 INFO L93 Difference]: Finished difference Result 142 states and 175 transitions. [2021-11-19 14:50:57,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:50:57,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 18 [2021-11-19 14:50:57,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:57,840 INFO L225 Difference]: With dead ends: 142 [2021-11-19 14:50:57,841 INFO L226 Difference]: Without dead ends: 140 [2021-11-19 14:50:57,841 INFO L932 BasicCegarLoop]: 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 [2021-11-19 14:50:57,842 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 8 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:57,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 178 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:50:57,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-19 14:50:57,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 116. [2021-11-19 14:50:57,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 95 states have (on average 1.4) internal successors, (133), 108 states have internal predecessors, (133), 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) [2021-11-19 14:50:57,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 141 transitions. [2021-11-19 14:50:57,857 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 141 transitions. Word has length 18 [2021-11-19 14:50:57,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:57,858 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 141 transitions. [2021-11-19 14:50:57,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-11-19 14:50:57,858 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 141 transitions. [2021-11-19 14:50:57,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-19 14:50:57,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:57,860 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:50:57,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-19 14:50:57,861 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:50:57,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:57,862 INFO L85 PathProgramCache]: Analyzing trace with hash -838765420, now seen corresponding path program 1 times [2021-11-19 14:50:57,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:50:57,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788113905] [2021-11-19 14:50:57,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:57,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:50:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:57,914 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 14:50:57,914 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:50:57,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788113905] [2021-11-19 14:50:57,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788113905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:57,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:50:57,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 14:50:57,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46750021] [2021-11-19 14:50:57,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:57,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:50:57,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:50:57,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:50:57,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:50:57,918 INFO L87 Difference]: Start difference. First operand 116 states and 141 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (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) [2021-11-19 14:50:58,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:58,007 INFO L93 Difference]: Finished difference Result 129 states and 154 transitions. [2021-11-19 14:50:58,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:50:58,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (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 22 [2021-11-19 14:50:58,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:58,010 INFO L225 Difference]: With dead ends: 129 [2021-11-19 14:50:58,010 INFO L226 Difference]: Without dead ends: 127 [2021-11-19 14:50:58,011 INFO L932 BasicCegarLoop]: 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 [2021-11-19 14:50:58,012 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 73 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:58,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 177 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:50:58,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-11-19 14:50:58,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 113. [2021-11-19 14:50:58,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.391304347826087) internal successors, (128), 105 states have internal predecessors, (128), 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) [2021-11-19 14:50:58,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 136 transitions. [2021-11-19 14:50:58,023 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 136 transitions. Word has length 22 [2021-11-19 14:50:58,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:58,024 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 136 transitions. [2021-11-19 14:50:58,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (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) [2021-11-19 14:50:58,025 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 136 transitions. [2021-11-19 14:50:58,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-19 14:50:58,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:58,031 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:50:58,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-19 14:50:58,031 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:50:58,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:58,033 INFO L85 PathProgramCache]: Analyzing trace with hash -37307548, now seen corresponding path program 1 times [2021-11-19 14:50:58,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:50:58,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747936089] [2021-11-19 14:50:58,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:58,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:50:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:58,112 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:50:58,112 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:50:58,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747936089] [2021-11-19 14:50:58,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747936089] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:58,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:50:58,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 14:50:58,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144467114] [2021-11-19 14:50:58,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:58,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:50:58,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:50:58,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:50:58,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:50:58,116 INFO L87 Difference]: Start difference. First operand 113 states and 136 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 14:50:58,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:58,212 INFO L93 Difference]: Finished difference Result 124 states and 150 transitions. [2021-11-19 14:50:58,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:50:58,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2021-11-19 14:50:58,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:58,219 INFO L225 Difference]: With dead ends: 124 [2021-11-19 14:50:58,219 INFO L226 Difference]: Without dead ends: 122 [2021-11-19 14:50:58,219 INFO L932 BasicCegarLoop]: 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 [2021-11-19 14:50:58,220 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 82 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:58,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 168 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:50:58,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-19 14:50:58,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 107. [2021-11-19 14:50:58,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 88 states have (on average 1.3636363636363635) internal successors, (120), 99 states have internal predecessors, (120), 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) [2021-11-19 14:50:58,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 128 transitions. [2021-11-19 14:50:58,234 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 128 transitions. Word has length 26 [2021-11-19 14:50:58,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:58,234 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 128 transitions. [2021-11-19 14:50:58,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 14:50:58,235 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 128 transitions. [2021-11-19 14:50:58,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-19 14:50:58,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:58,238 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:50:58,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-19 14:50:58,254 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:50:58,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:58,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1627575823, now seen corresponding path program 1 times [2021-11-19 14:50:58,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:50:58,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064806646] [2021-11-19 14:50:58,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:58,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:50:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:58,365 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:50:58,365 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:50:58,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064806646] [2021-11-19 14:50:58,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064806646] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:50:58,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483457913] [2021-11-19 14:50:58,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:58,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:50:58,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:50:58,373 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:50:58,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 14:50:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:58,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-19 14:50:58,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:50:58,641 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 14:50:58,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:50:59,318 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 14:50:59,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483457913] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:50:59,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:50:59,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 10] total 16 [2021-11-19 14:50:59,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839201807] [2021-11-19 14:50:59,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:59,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:50:59,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:50:59,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:50:59,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-11-19 14:50:59,320 INFO L87 Difference]: Start difference. First operand 107 states and 128 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-19 14:50:59,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:59,455 INFO L93 Difference]: Finished difference Result 143 states and 165 transitions. [2021-11-19 14:50:59,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:50:59,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2021-11-19 14:50:59,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:59,457 INFO L225 Difference]: With dead ends: 143 [2021-11-19 14:50:59,458 INFO L226 Difference]: Without dead ends: 111 [2021-11-19 14:50:59,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-11-19 14:50:59,459 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 1 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:59,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 310 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:50:59,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-19 14:50:59,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 107. [2021-11-19 14:50:59,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 99 states have internal predecessors, (118), 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) [2021-11-19 14:50:59,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 126 transitions. [2021-11-19 14:50:59,470 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 126 transitions. Word has length 28 [2021-11-19 14:50:59,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:59,470 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 126 transitions. [2021-11-19 14:50:59,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-19 14:50:59,471 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 126 transitions. [2021-11-19 14:50:59,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-19 14:50:59,472 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:59,472 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:50:59,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:50:59,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:50:59,689 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:50:59,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:59,690 INFO L85 PathProgramCache]: Analyzing trace with hash -605365364, now seen corresponding path program 1 times [2021-11-19 14:50:59,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:50:59,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800463438] [2021-11-19 14:50:59,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:59,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:50:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:59,756 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:50:59,756 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:50:59,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800463438] [2021-11-19 14:50:59,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800463438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:50:59,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:50:59,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 14:50:59,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867572222] [2021-11-19 14:50:59,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:50:59,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:50:59,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:50:59,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:50:59,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:50:59,759 INFO L87 Difference]: Start difference. First operand 107 states and 126 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 14:50:59,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:50:59,834 INFO L93 Difference]: Finished difference Result 118 states and 138 transitions. [2021-11-19 14:50:59,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:50:59,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2021-11-19 14:50:59,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:50:59,836 INFO L225 Difference]: With dead ends: 118 [2021-11-19 14:50:59,836 INFO L226 Difference]: Without dead ends: 116 [2021-11-19 14:50:59,837 INFO L932 BasicCegarLoop]: 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 [2021-11-19 14:50:59,838 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 70 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:50:59,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 168 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:50:59,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-11-19 14:50:59,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 102. [2021-11-19 14:50:59,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 85 states have (on average 1.3294117647058823) internal successors, (113), 94 states have internal predecessors, (113), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-19 14:50:59,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 121 transitions. [2021-11-19 14:50:59,848 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 121 transitions. Word has length 28 [2021-11-19 14:50:59,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:50:59,849 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 121 transitions. [2021-11-19 14:50:59,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 14:50:59,849 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 121 transitions. [2021-11-19 14:50:59,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-19 14:50:59,852 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:50:59,852 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:50:59,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-19 14:50:59,853 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:50:59,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:50:59,853 INFO L85 PathProgramCache]: Analyzing trace with hash -2016296670, now seen corresponding path program 1 times [2021-11-19 14:50:59,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:50:59,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166633022] [2021-11-19 14:50:59,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:59,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:50:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:59,940 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:50:59,941 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:50:59,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166633022] [2021-11-19 14:50:59,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166633022] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:50:59,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829663307] [2021-11-19 14:50:59,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:50:59,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:50:59,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:50:59,945 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:51:00,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 14:51:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:00,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 14:51:00,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:00,251 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 14:51:00,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:00,570 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 14:51:00,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829663307] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:51:00,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1979907432] [2021-11-19 14:51:00,598 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2021-11-19 14:51:00,598 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:51:00,604 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:51:00,611 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:51:00,611 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:51:00,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:00,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:00,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:00,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:00,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:00,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:00,758 INFO L180 QuantifierPusher]: treesize reduction 12, result has 92.3 percent of original size [2021-11-19 14:51:00,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 14:51:00,771 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:00,777 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:00,791 INFO L180 QuantifierPusher]: treesize reduction 12, result has 92.3 percent of original size [2021-11-19 14:51:00,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 14:51:00,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:00,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:00,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:00,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:00,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:00,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:00,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:00,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:00,847 INFO L180 QuantifierPusher]: treesize reduction 21, result has 79.6 percent of original size [2021-11-19 14:51:00,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 14:51:00,854 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:00,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:00,880 INFO L180 QuantifierPusher]: treesize reduction 12, result has 92.4 percent of original size [2021-11-19 14:51:00,884 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:51:00,888 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:00,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:00,909 INFO L180 QuantifierPusher]: treesize reduction 12, result has 92.4 percent of original size [2021-11-19 14:51:00,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:51:00,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:00,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:00,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:00,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:00,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:00,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:00,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:00,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:00,982 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 58 for LOIs [2021-11-19 14:51:00,995 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:51:02,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1979907432] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:51:02,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:51:02,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 9, 7] total 23 [2021-11-19 14:51:02,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362335642] [2021-11-19 14:51:02,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:51:02,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:51:02,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:51:02,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:51:02,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:51:02,323 INFO L87 Difference]: Start difference. First operand 102 states and 121 transitions. Second operand has 10 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-19 14:51:02,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:51:02,612 INFO L93 Difference]: Finished difference Result 232 states and 274 transitions. [2021-11-19 14:51:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 14:51:02,614 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 32 [2021-11-19 14:51:02,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:51:02,615 INFO L225 Difference]: With dead ends: 232 [2021-11-19 14:51:02,616 INFO L226 Difference]: Without dead ends: 132 [2021-11-19 14:51:02,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:51:02,618 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 86 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:51:02,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 410 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:51:02,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-11-19 14:51:02,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 96. [2021-11-19 14:51:02,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 78 states have (on average 1.3076923076923077) internal successors, (102), 88 states have internal predecessors, (102), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2021-11-19 14:51:02,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2021-11-19 14:51:02,632 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 32 [2021-11-19 14:51:02,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:51:02,632 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2021-11-19 14:51:02,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-19 14:51:02,633 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2021-11-19 14:51:02,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-19 14:51:02,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:51:02,634 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:51:02,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:51:02,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-19 14:51:02,849 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:51:02,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:51:02,850 INFO L85 PathProgramCache]: Analyzing trace with hash -749408735, now seen corresponding path program 1 times [2021-11-19 14:51:02,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:51:02,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709398986] [2021-11-19 14:51:02,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:02,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:51:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:02,960 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:51:02,960 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:51:02,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709398986] [2021-11-19 14:51:02,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709398986] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:51:02,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881972520] [2021-11-19 14:51:02,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:02,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:51:02,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:51:02,965 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:51:02,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 14:51:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:03,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 14:51:03,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:03,238 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:51:03,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:03,552 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:51:03,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881972520] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:51:03,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2004989355] [2021-11-19 14:51:03,558 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2021-11-19 14:51:03,559 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:51:03,561 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:51:03,561 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:51:03,561 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:51:03,578 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:03,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,620 INFO L180 QuantifierPusher]: treesize reduction 6, result has 86.0 percent of original size [2021-11-19 14:51:03,624 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 14:51:03,626 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,629 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 14:51:03,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:03,666 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,671 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:03,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:03,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,717 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:51:03,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:03,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,727 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:03,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:03,737 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:03,745 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:03,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,784 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:51:03,786 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:03,789 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:03,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,828 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:03,832 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:03,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:03,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,880 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:51:03,883 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:03,890 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:03,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:03,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:03,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:03,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,961 INFO L180 QuantifierPusher]: treesize reduction 15, result has 89.0 percent of original size [2021-11-19 14:51:03,966 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-11-19 14:51:03,979 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:03,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:03,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:03,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:03,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,010 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:04,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:04,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:04,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:04,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,085 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 18 for LOIs [2021-11-19 14:51:04,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,158 INFO L180 QuantifierPusher]: treesize reduction 18, result has 75.0 percent of original size [2021-11-19 14:51:04,161 INFO L185 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-11-19 14:51:04,167 INFO L180 QuantifierPusher]: treesize reduction 9, result has 83.3 percent of original size [2021-11-19 14:51:04,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-19 14:51:04,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:04,243 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:51:06,696 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 14:51:06,696 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:51:06,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 7] total 16 [2021-11-19 14:51:06,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746776889] [2021-11-19 14:51:06,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 14:51:06,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 14:51:06,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:51:06,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 14:51:06,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=856, Unknown=0, NotChecked=0, Total=992 [2021-11-19 14:51:06,699 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand has 16 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2021-11-19 14:51:07,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:51:07,119 INFO L93 Difference]: Finished difference Result 257 states and 297 transitions. [2021-11-19 14:51:07,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-19 14:51:07,120 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 41 [2021-11-19 14:51:07,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:51:07,122 INFO L225 Difference]: With dead ends: 257 [2021-11-19 14:51:07,122 INFO L226 Difference]: Without dead ends: 146 [2021-11-19 14:51:07,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 89 SyntacticMatches, 8 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=230, Invalid=1492, Unknown=0, NotChecked=0, Total=1722 [2021-11-19 14:51:07,125 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 74 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:51:07,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 428 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:51:07,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-19 14:51:07,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 98. [2021-11-19 14:51:07,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 80 states have (on average 1.2625) internal successors, (101), 89 states have internal predecessors, (101), 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) [2021-11-19 14:51:07,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 109 transitions. [2021-11-19 14:51:07,139 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 109 transitions. Word has length 41 [2021-11-19 14:51:07,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:51:07,139 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 109 transitions. [2021-11-19 14:51:07,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2021-11-19 14:51:07,140 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 109 transitions. [2021-11-19 14:51:07,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-19 14:51:07,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:51:07,141 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:51:07,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-19 14:51:07,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:51:07,355 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:51:07,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:51:07,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1160168471, now seen corresponding path program 1 times [2021-11-19 14:51:07,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:51:07,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622171134] [2021-11-19 14:51:07,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:07,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:51:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:07,433 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:51:07,434 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:51:07,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622171134] [2021-11-19 14:51:07,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622171134] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:51:07,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084979113] [2021-11-19 14:51:07,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:07,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:51:07,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:51:07,436 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:51:07,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-19 14:51:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:07,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:51:07,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:07,670 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 14:51:07,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:07,939 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:51:07,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084979113] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:51:07,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [554032641] [2021-11-19 14:51:07,943 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2021-11-19 14:51:07,943 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:51:07,944 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:51:07,944 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:51:07,944 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:51:07,952 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:07,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:07,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:07,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:07,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:07,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:07,974 INFO L180 QuantifierPusher]: treesize reduction 6, result has 86.0 percent of original size [2021-11-19 14:51:07,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 14:51:07,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:07,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:07,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:07,994 INFO L180 QuantifierPusher]: treesize reduction 6, result has 92.5 percent of original size [2021-11-19 14:51:07,997 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-19 14:51:08,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,018 INFO L180 QuantifierPusher]: treesize reduction 6, result has 76.9 percent of original size [2021-11-19 14:51:08,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-19 14:51:08,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-19 14:51:08,040 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:08,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-19 14:51:08,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,081 INFO L180 QuantifierPusher]: treesize reduction 15, result has 85.0 percent of original size [2021-11-19 14:51:08,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-19 14:51:08,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,091 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:08,093 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-19 14:51:08,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:08,107 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-19 14:51:08,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,144 INFO L180 QuantifierPusher]: treesize reduction 15, result has 85.8 percent of original size [2021-11-19 14:51:08,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-19 14:51:08,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:08,158 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-19 14:51:08,165 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:08,172 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-19 14:51:08,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,213 INFO L180 QuantifierPusher]: treesize reduction 15, result has 86.6 percent of original size [2021-11-19 14:51:08,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-19 14:51:08,219 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:08,228 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-19 14:51:08,235 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:08,244 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-19 14:51:08,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,291 INFO L180 QuantifierPusher]: treesize reduction 15, result has 90.6 percent of original size [2021-11-19 14:51:08,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-19 14:51:08,310 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:08,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:08,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,340 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:08,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,369 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:08,372 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:08,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,394 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 18 for LOIs [2021-11-19 14:51:08,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,467 INFO L180 QuantifierPusher]: treesize reduction 18, result has 75.0 percent of original size [2021-11-19 14:51:08,469 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 14:51:08,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,490 INFO L180 QuantifierPusher]: treesize reduction 9, result has 92.9 percent of original size [2021-11-19 14:51:08,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-11-19 14:51:08,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,527 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 14:51:08,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:51:08,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:08,580 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 14:51:08,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:51:08,582 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:51:10,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [554032641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:51:10,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:51:10,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [6, 6, 6] total 34 [2021-11-19 14:51:10,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160628502] [2021-11-19 14:51:10,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:51:10,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-19 14:51:10,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:51:10,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-19 14:51:10,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=930, Unknown=0, NotChecked=0, Total=1122 [2021-11-19 14:51:10,432 INFO L87 Difference]: Start difference. First operand 98 states and 109 transitions. Second operand has 22 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 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) [2021-11-19 14:51:11,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:51:11,606 INFO L93 Difference]: Finished difference Result 230 states and 254 transitions. [2021-11-19 14:51:11,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-19 14:51:11,607 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 49 [2021-11-19 14:51:11,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:51:11,611 INFO L225 Difference]: With dead ends: 230 [2021-11-19 14:51:11,611 INFO L226 Difference]: Without dead ends: 228 [2021-11-19 14:51:11,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 115 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=306, Invalid=1416, Unknown=0, NotChecked=0, Total=1722 [2021-11-19 14:51:11,617 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 284 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:51:11,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 503 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 14:51:11,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-11-19 14:51:11,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 120. [2021-11-19 14:51:11,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 97 states have (on average 1.2577319587628866) internal successors, (122), 108 states have internal predecessors, (122), 6 states have call successors, (6), 4 states have call predecessors, (6), 7 states have return successors, (11), 7 states have call predecessors, (11), 6 states have call successors, (11) [2021-11-19 14:51:11,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2021-11-19 14:51:11,642 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 49 [2021-11-19 14:51:11,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:51:11,643 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2021-11-19 14:51:11,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 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) [2021-11-19 14:51:11,643 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2021-11-19 14:51:11,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-19 14:51:11,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:51:11,645 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:51:11,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:51:11,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:51:11,861 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:51:11,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:51:11,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1165133808, now seen corresponding path program 1 times [2021-11-19 14:51:11,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:51:11,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627559482] [2021-11-19 14:51:11,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:11,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:51:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:11,976 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:51:11,976 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:51:11,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627559482] [2021-11-19 14:51:11,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627559482] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:51:11,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650610177] [2021-11-19 14:51:11,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:11,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:51:11,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:51:11,978 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:51:12,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-19 14:51:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:12,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:51:12,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:12,221 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 14:51:12,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:12,476 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:51:12,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650610177] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:51:12,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1113613927] [2021-11-19 14:51:12,480 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2021-11-19 14:51:12,480 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:51:12,481 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:51:12,481 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:51:12,481 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:51:12,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:12,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,511 INFO L180 QuantifierPusher]: treesize reduction 6, result has 86.0 percent of original size [2021-11-19 14:51:12,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 14:51:12,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,526 INFO L180 QuantifierPusher]: treesize reduction 6, result has 92.5 percent of original size [2021-11-19 14:51:12,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-19 14:51:12,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,552 INFO L180 QuantifierPusher]: treesize reduction 6, result has 76.9 percent of original size [2021-11-19 14:51:12,554 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-19 14:51:12,556 INFO L180 QuantifierPusher]: treesize reduction 6, result has 76.9 percent of original size [2021-11-19 14:51:12,558 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-19 14:51:12,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-19 14:51:12,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:12,580 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:12,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:12,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,611 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:51:12,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:12,616 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:12,621 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,624 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:12,627 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:12,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:12,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,659 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:51:12,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:12,664 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,667 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:12,669 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:12,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:12,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:12,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,707 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:51:12,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:12,712 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,715 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:12,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:12,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,727 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:12,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,732 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:12,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,757 INFO L180 QuantifierPusher]: treesize reduction 15, result has 89.0 percent of original size [2021-11-19 14:51:12,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-11-19 14:51:12,793 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,798 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:12,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:12,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,829 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:12,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,866 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:12,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:12,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,896 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 18 for LOIs [2021-11-19 14:51:12,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,957 INFO L180 QuantifierPusher]: treesize reduction 18, result has 75.0 percent of original size [2021-11-19 14:51:12,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 14:51:12,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:12,982 INFO L180 QuantifierPusher]: treesize reduction 9, result has 92.9 percent of original size [2021-11-19 14:51:12,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-11-19 14:51:13,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,044 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 14:51:13,046 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:51:13,056 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 14:51:13,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:51:13,062 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:13,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 14:51:13,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:13,107 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:51:14,681 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 14:51:14,681 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:51:14,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2021-11-19 14:51:14,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686355943] [2021-11-19 14:51:14,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 14:51:14,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 14:51:14,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:51:14,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 14:51:14,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=605, Unknown=0, NotChecked=0, Total=756 [2021-11-19 14:51:14,683 INFO L87 Difference]: Start difference. First operand 120 states and 139 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, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 14:51:15,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:51:15,084 INFO L93 Difference]: Finished difference Result 312 states and 364 transitions. [2021-11-19 14:51:15,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 14:51:15,086 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, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2021-11-19 14:51:15,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:51:15,088 INFO L225 Difference]: With dead ends: 312 [2021-11-19 14:51:15,088 INFO L226 Difference]: Without dead ends: 222 [2021-11-19 14:51:15,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 123 SyntacticMatches, 8 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=222, Invalid=834, Unknown=0, NotChecked=0, Total=1056 [2021-11-19 14:51:15,090 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 135 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:51:15,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 302 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:51:15,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-11-19 14:51:15,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 138. [2021-11-19 14:51:15,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 115 states have (on average 1.2434782608695651) internal successors, (143), 126 states have internal predecessors, (143), 6 states have call successors, (6), 4 states have call predecessors, (6), 7 states have return successors, (11), 7 states have call predecessors, (11), 6 states have call successors, (11) [2021-11-19 14:51:15,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 160 transitions. [2021-11-19 14:51:15,117 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 160 transitions. Word has length 50 [2021-11-19 14:51:15,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:51:15,118 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 160 transitions. [2021-11-19 14:51:15,118 INFO L471 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, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 14:51:15,118 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 160 transitions. [2021-11-19 14:51:15,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-19 14:51:15,119 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:51:15,120 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:51:15,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:51:15,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable217 [2021-11-19 14:51:15,333 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:51:15,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:51:15,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1280577363, now seen corresponding path program 1 times [2021-11-19 14:51:15,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:51:15,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93775782] [2021-11-19 14:51:15,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:15,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:51:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:15,393 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 14:51:15,393 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:51:15,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93775782] [2021-11-19 14:51:15,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93775782] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:51:15,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574502086] [2021-11-19 14:51:15,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:15,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:51:15,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:51:15,396 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:51:15,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-19 14:51:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:15,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:51:15,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:15,625 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-19 14:51:15,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:15,879 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 14:51:15,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574502086] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:51:15,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [677226786] [2021-11-19 14:51:15,883 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2021-11-19 14:51:15,883 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:51:15,884 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:51:15,884 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:51:15,884 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:51:15,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:15,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:15,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,912 INFO L180 QuantifierPusher]: treesize reduction 8, result has 69.2 percent of original size [2021-11-19 14:51:15,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-19 14:51:15,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,925 INFO L180 QuantifierPusher]: treesize reduction 6, result has 86.0 percent of original size [2021-11-19 14:51:15,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 14:51:15,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,939 INFO L180 QuantifierPusher]: treesize reduction 6, result has 92.5 percent of original size [2021-11-19 14:51:15,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-19 14:51:15,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,955 INFO L180 QuantifierPusher]: treesize reduction 6, result has 76.9 percent of original size [2021-11-19 14:51:15,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-19 14:51:15,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,963 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:15,965 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:15,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:15,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:15,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:15,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:15,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:15,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,000 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:51:16,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:16,005 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:16,008 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:16,010 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:16,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:16,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:16,019 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:16,021 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:16,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:16,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,047 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:51:16,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:16,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:16,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:16,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:16,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:16,063 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:16,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:16,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:16,071 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:16,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,094 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:51:16,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:16,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:16,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:16,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:16,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:16,110 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:16,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:16,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:16,118 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:51:16,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,142 INFO L180 QuantifierPusher]: treesize reduction 15, result has 89.0 percent of original size [2021-11-19 14:51:16,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-11-19 14:51:16,156 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:16,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:16,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:16,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:51:16,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:16,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:16,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:51:16,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:51:16,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,252 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 18 for LOIs [2021-11-19 14:51:16,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,304 INFO L180 QuantifierPusher]: treesize reduction 20, result has 63.6 percent of original size [2021-11-19 14:51:16,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:51:16,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,347 INFO L180 QuantifierPusher]: treesize reduction 18, result has 75.0 percent of original size [2021-11-19 14:51:16,349 INFO L185 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-11-19 14:51:16,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,374 INFO L180 QuantifierPusher]: treesize reduction 17, result has 86.5 percent of original size [2021-11-19 14:51:16,378 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-11-19 14:51:16,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,406 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 14:51:16,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:51:16,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:51:16,449 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 14:51:16,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:51:16,452 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:51:18,011 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 14:51:18,011 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:51:18,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2021-11-19 14:51:18,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514030546] [2021-11-19 14:51:18,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 14:51:18,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 14:51:18,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:51:18,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 14:51:18,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2021-11-19 14:51:18,014 INFO L87 Difference]: Start difference. First operand 138 states and 160 transitions. Second operand has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-19 14:51:18,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:51:18,291 INFO L93 Difference]: Finished difference Result 360 states and 421 transitions. [2021-11-19 14:51:18,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 14:51:18,292 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 51 [2021-11-19 14:51:18,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:51:18,295 INFO L225 Difference]: With dead ends: 360 [2021-11-19 14:51:18,295 INFO L226 Difference]: Without dead ends: 268 [2021-11-19 14:51:18,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 123 SyntacticMatches, 8 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=240, Invalid=816, Unknown=0, NotChecked=0, Total=1056 [2021-11-19 14:51:18,297 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 146 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:51:18,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 249 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:51:18,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-11-19 14:51:18,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 140. [2021-11-19 14:51:18,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 117 states have (on average 1.2136752136752136) internal successors, (142), 128 states have internal predecessors, (142), 6 states have call successors, (6), 4 states have call predecessors, (6), 7 states have return successors, (11), 7 states have call predecessors, (11), 6 states have call successors, (11) [2021-11-19 14:51:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 159 transitions. [2021-11-19 14:51:18,320 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 159 transitions. Word has length 51 [2021-11-19 14:51:18,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:51:18,321 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 159 transitions. [2021-11-19 14:51:18,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-19 14:51:18,321 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 159 transitions. [2021-11-19 14:51:18,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-19 14:51:18,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:51:18,323 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:51:18,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:51:18,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable319 [2021-11-19 14:51:18,537 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:51:18,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:51:18,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1368167024, now seen corresponding path program 2 times [2021-11-19 14:51:18,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:51:18,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213313818] [2021-11-19 14:51:18,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:18,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:51:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:18,759 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 3 proven. 83 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:51:18,760 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:51:18,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213313818] [2021-11-19 14:51:18,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213313818] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:51:18,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681319866] [2021-11-19 14:51:18,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 14:51:18,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:51:18,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:51:18,762 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:51:18,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-19 14:51:18,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-19 14:51:18,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:51:18,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 14:51:18,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:19,207 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-19 14:51:19,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:51:28,652 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-19 14:51:28,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681319866] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:51:28,653 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:51:28,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [10] total 20 [2021-11-19 14:51:28,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529330761] [2021-11-19 14:51:28,653 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:51:28,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:51:28,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:51:28,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:51:28,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:51:28,656 INFO L87 Difference]: Start difference. First operand 140 states and 159 transitions. Second operand has 12 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 states have internal predecessors, (34), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-19 14:51:28,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:51:28,810 INFO L93 Difference]: Finished difference Result 174 states and 195 transitions. [2021-11-19 14:51:28,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:51:28,811 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 states have internal predecessors, (34), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 70 [2021-11-19 14:51:28,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:51:28,814 INFO L225 Difference]: With dead ends: 174 [2021-11-19 14:51:28,814 INFO L226 Difference]: Without dead ends: 173 [2021-11-19 14:51:28,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2021-11-19 14:51:28,817 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 79 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:51:28,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 513 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 34 Unchecked, 0.1s Time] [2021-11-19 14:51:28,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-19 14:51:28,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 146. [2021-11-19 14:51:28,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 122 states have (on average 1.2049180327868851) internal successors, (147), 133 states have internal predecessors, (147), 6 states have call successors, (6), 4 states have call predecessors, (6), 8 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2021-11-19 14:51:28,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 166 transitions. [2021-11-19 14:51:28,843 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 166 transitions. Word has length 70 [2021-11-19 14:51:28,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:51:28,844 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 166 transitions. [2021-11-19 14:51:28,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 states have internal predecessors, (34), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-19 14:51:28,844 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 166 transitions. [2021-11-19 14:51:28,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-19 14:51:28,846 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:51:28,846 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:51:28,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:51:29,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable433 [2021-11-19 14:51:29,050 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:51:29,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:51:29,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1015327533, now seen corresponding path program 2 times [2021-11-19 14:51:29,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:51:29,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446226793] [2021-11-19 14:51:29,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:51:29,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:51:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:51:29,204 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 3 proven. 95 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 14:51:29,204 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:51:29,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446226793] [2021-11-19 14:51:29,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446226793] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:51:29,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271188507] [2021-11-19 14:51:29,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 14:51:29,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:51:29,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:51:29,207 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:51:29,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-19 14:51:29,276 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-19 14:51:29,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:51:29,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 14:51:29,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:51:29,509 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-11-19 14:51:29,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:52:08,231 WARN L838 $PredicateComparison]: unable to prove that (forall ((|aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61| Int)) (or (< |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61| 0) (<= 2147483776 |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61|) (let ((.cse2 (mod |c_ULTIMATE.start_main_~a~0#1| 4294967296)) (.cse0 (* |c_ULTIMATE.start_main_~a~0#1| (- 1)))) (and (or (<= (div .cse0 (- 4294967296)) (+ (div (+ |c_ULTIMATE.start_main_~a~0#1| (- 4294967296)) 4294967296) 1)) (let ((.cse1 (div (+ (- 16777215) .cse2) 16777216))) (<= (div (+ (* (div (+ (- 4294967295) .cse1) (- 256)) (- 1)) (div (+ (- 256) |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61|) 256) 1) (- 16777216)) (+ (div (+ 8388608 (* (div (+ (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61| (- 1)) .cse1) (- 256)) (- 1))) 16777216) 1)))) (or (<= (div (+ (- 1) .cse0 (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61| 16777216)) (- 72057594037927936)) (+ (div (+ |c_ULTIMATE.start_main_~a~0#1| (- 16777216) (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61| (- 16777216))) 72057594037927936) 1)) (<= 0 (div (* .cse2 (- 1)) 4294967296)) (<= (div (+ (* (div (+ (- 1) .cse0) (- 16777216)) (- 1)) 2147483648) (- 4294967296)) (+ (div (+ (div (+ |c_ULTIMATE.start_main_~a~0#1| (- 16777216)) 16777216) (- 4294967295)) 4294967296) 1))))))) is different from false [2021-11-19 14:52:40,834 WARN L838 $PredicateComparison]: unable to prove that (forall ((|aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61| Int)) (or (< |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61| 0) (<= 2147483776 |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61|) (let ((.cse0 (* |c_ULTIMATE.start_main_#t~ret10#1| (- 1))) (.cse2 (mod |c_ULTIMATE.start_main_#t~ret10#1| 4294967296))) (and (or (<= (div .cse0 (- 4294967296)) (+ (div (+ (- 4294967296) |c_ULTIMATE.start_main_#t~ret10#1|) 4294967296) 1)) (let ((.cse1 (div (+ (- 16777215) .cse2) 16777216))) (<= (div (+ (* (div (+ .cse1 (- 4294967295)) (- 256)) (- 1)) (div (+ (- 256) |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61|) 256) 1) (- 16777216)) (+ (div (+ 8388608 (* (div (+ .cse1 (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61| (- 1))) (- 256)) (- 1))) 16777216) 1)))) (or (<= (div (+ (- 1) (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61| 16777216) .cse0) (- 72057594037927936)) (+ (div (+ (- 16777216) (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61| (- 16777216)) |c_ULTIMATE.start_main_#t~ret10#1|) 72057594037927936) 1)) (<= (div (+ (* (div (+ (- 1) .cse0) (- 16777216)) (- 1)) 2147483648) (- 4294967296)) (+ (div (+ (div (+ (- 16777216) |c_ULTIMATE.start_main_#t~ret10#1|) 16777216) (- 4294967295)) 4294967296) 1)) (<= 0 (div (* .cse2 (- 1)) 4294967296))))))) is different from false [2021-11-19 14:53:32,105 WARN L838 $PredicateComparison]: unable to prove that (forall ((|aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61| Int)) (or (< |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61| 0) (let ((.cse1 (mod c_base2flt_~__retres4~0 4294967296)) (.cse0 (* c_base2flt_~__retres4~0 (- 1)))) (and (or (<= (div (+ (- 1) (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61| 16777216) .cse0) (- 72057594037927936)) (+ 1 (div (+ (- 16777216) (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61| (- 16777216)) c_base2flt_~__retres4~0) 72057594037927936))) (<= 0 (div (* .cse1 (- 1)) 4294967296)) (<= (div (+ (* (div (+ (- 1) .cse0) (- 16777216)) (- 1)) 2147483648) (- 4294967296)) (+ (div (+ (- 4294967295) (div (+ (- 16777216) c_base2flt_~__retres4~0) 16777216)) 4294967296) 1))) (or (let ((.cse2 (div (+ .cse1 (- 16777215)) 16777216))) (<= (div (+ (* (div (+ .cse2 (- 4294967295)) (- 256)) (- 1)) (div (+ (- 256) |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61|) 256) 1) (- 16777216)) (+ (div (+ 8388608 (* (div (+ (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61| (- 1)) .cse2) (- 256)) (- 1))) 16777216) 1))) (<= (div .cse0 (- 4294967296)) (+ (div (+ (- 4294967296) c_base2flt_~__retres4~0) 4294967296) 1))))) (<= 2147483776 |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~a#1_21_48_61|))) is different from false [2021-11-19 14:53:32,255 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-11-19 14:53:32,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271188507] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:53:32,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [685813799] [2021-11-19 14:53:32,258 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2021-11-19 14:53:32,258 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:53:32,259 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:53:32,259 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:53:32,259 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:53:32,274 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:53:32,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,310 INFO L180 QuantifierPusher]: treesize reduction 8, result has 69.2 percent of original size [2021-11-19 14:53:32,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-19 14:53:32,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,323 INFO L180 QuantifierPusher]: treesize reduction 6, result has 86.0 percent of original size [2021-11-19 14:53:32,325 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 14:53:32,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,337 INFO L180 QuantifierPusher]: treesize reduction 6, result has 92.5 percent of original size [2021-11-19 14:53:32,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-19 14:53:32,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,353 INFO L180 QuantifierPusher]: treesize reduction 6, result has 76.9 percent of original size [2021-11-19 14:53:32,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-19 14:53:32,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:53:32,371 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,374 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:53:32,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:53:32,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,404 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:53:32,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:53:32,410 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:53:32,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:53:32,423 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,427 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:53:32,429 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:53:32,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,485 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:53:32,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:53:32,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,495 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:53:32,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:53:32,505 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,509 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:53:32,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:53:32,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,538 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:53:32,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:53:32,544 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,548 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:53:32,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,554 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:53:32,558 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:53:32,564 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:53:32,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,592 INFO L180 QuantifierPusher]: treesize reduction 15, result has 89.0 percent of original size [2021-11-19 14:53:32,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-11-19 14:53:32,610 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,614 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:53:32,616 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:53:32,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,635 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:53:32,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:32,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:53:32,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,687 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 18 for LOIs [2021-11-19 14:53:32,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,748 INFO L180 QuantifierPusher]: treesize reduction 20, result has 63.6 percent of original size [2021-11-19 14:53:32,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:53:32,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,794 INFO L180 QuantifierPusher]: treesize reduction 18, result has 75.0 percent of original size [2021-11-19 14:53:32,796 INFO L185 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-11-19 14:53:32,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,818 INFO L180 QuantifierPusher]: treesize reduction 17, result has 86.5 percent of original size [2021-11-19 14:53:32,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-11-19 14:53:32,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,846 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 14:53:32,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:53:32,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:32,893 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 14:53:32,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:53:32,896 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:53:45,028 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 14:53:45,028 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:53:45,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 7] total 21 [2021-11-19 14:53:45,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765834139] [2021-11-19 14:53:45,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 14:53:45,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-19 14:53:45,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:53:45,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-19 14:53:45,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=938, Unknown=6, NotChecked=198, Total=1332 [2021-11-19 14:53:45,031 INFO L87 Difference]: Start difference. First operand 146 states and 166 transitions. Second operand has 21 states, 19 states have (on average 4.105263157894737) internal successors, (78), 19 states have internal predecessors, (78), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2021-11-19 14:53:49,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:53:49,987 INFO L93 Difference]: Finished difference Result 433 states and 508 transitions. [2021-11-19 14:53:49,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 14:53:49,988 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 4.105263157894737) internal successors, (78), 19 states have internal predecessors, (78), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 71 [2021-11-19 14:53:49,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:53:49,991 INFO L225 Difference]: With dead ends: 433 [2021-11-19 14:53:49,992 INFO L226 Difference]: Without dead ends: 337 [2021-11-19 14:53:49,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 174 SyntacticMatches, 14 SemanticMatches, 40 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 39.7s TimeCoverageRelationStatistics Valid=245, Invalid=1241, Unknown=8, NotChecked=228, Total=1722 [2021-11-19 14:53:49,994 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 239 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 355 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:53:49,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 535 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 281 Invalid, 0 Unknown, 355 Unchecked, 0.5s Time] [2021-11-19 14:53:49,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-11-19 14:53:50,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 155. [2021-11-19 14:53:50,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 129 states have (on average 1.2015503875968991) internal successors, (155), 141 states have internal predecessors, (155), 7 states have call successors, (7), 4 states have call predecessors, (7), 9 states have return successors, (18), 9 states have call predecessors, (18), 7 states have call successors, (18) [2021-11-19 14:53:50,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 180 transitions. [2021-11-19 14:53:50,020 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 180 transitions. Word has length 71 [2021-11-19 14:53:50,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:53:50,021 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 180 transitions. [2021-11-19 14:53:50,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 4.105263157894737) internal successors, (78), 19 states have internal predecessors, (78), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2021-11-19 14:53:50,022 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 180 transitions. [2021-11-19 14:53:50,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-19 14:53:50,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:53:50,023 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:53:50,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:53:50,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:53:50,229 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:53:50,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:53:50,230 INFO L85 PathProgramCache]: Analyzing trace with hash 548521714, now seen corresponding path program 1 times [2021-11-19 14:53:50,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:53:50,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290025242] [2021-11-19 14:53:50,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:53:50,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:53:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:53:50,545 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 3 proven. 83 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:53:50,545 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:53:50,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290025242] [2021-11-19 14:53:50,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290025242] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:53:50,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622740185] [2021-11-19 14:53:50,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:53:50,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:53:50,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:53:50,547 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:53:50,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-19 14:53:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:53:50,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 14:53:50,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:53:50,999 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-11-19 14:53:50,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:54:34,925 WARN L838 $PredicateComparison]: unable to prove that (forall ((|aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| Int)) (or (let ((.cse10 (* |c_base2flt_#res| (- 1)))) (let ((.cse0 (<= (div (+ (* (div (+ (- 1) .cse10) (- 16777216)) (- 1)) 2147483648) (- 4294967296)) (+ (div (+ (div (+ |c_base2flt_#res| (- 16777216)) 16777216) (- 4294967295)) 4294967296) 1))) (.cse1 (<= (div (+ (- 1) .cse10 (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| 16777216)) (- 72057594037927936)) (+ (div (+ |c_base2flt_#res| (- 16777216) (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| (- 16777216))) 72057594037927936) 1)))) (and (or (forall ((|aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_62| Int) (|aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_62| Int)) (or (<= 4294967296 |aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_62|) (exists ((|aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| Int)) (and (<= 0 |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61|) (< (+ (div (+ |aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_62| (* |aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_62| 4294967296) (- 16777216) (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| (- 16777216))) 72057594037927936) 1) (div (+ (- 1) (* |aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_62| (- 4294967296)) (* |aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_62| (- 1)) (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| 16777216)) (- 72057594037927936))) (< |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| 2147483776))) (< |aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_62| (mod |c_base2flt_#res| 4294967296)))) .cse0 .cse1) (forall ((|aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| Int) (|aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180| Int) (|aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| Int) (|aux_mod_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290| Int)) (let ((.cse5 (* 72057594037927936 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266|)) (.cse9 (* 16777216 |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61|))) (let ((.cse7 (* 72057594037927936 |aux_div_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102|)) (.cse6 (+ (* 16777216 |aux_mod_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102|) .cse5 .cse9)) (.cse3 (* 16777216 |aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104|)) (.cse4 (* 72057594037927936 |aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104|)) (.cse2 (+ .cse5 .cse9)) (.cse8 (* 4294967296 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180|))) (or (< .cse2 (+ .cse3 .cse4 72057594037927937 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266|)) (<= (+ (* 72057594037927936 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290|) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| 72057594054705153) .cse5) (exists ((v_subst_1 Int)) (and (< v_subst_1 2147483776) (<= 0 v_subst_1) (< (+ (div (+ (* |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| (- 1)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| 72057594037927936) (* v_subst_1 (- 16777216)) (- 16777217) (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| 16777216)) 72057594037927936) 1) (div (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| (- 72057594037927936)) (* v_subst_1 16777216) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| (- 16777216))) (- 72057594037927936))))) (<= |aux_div_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102| (+ |aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| 1)) (<= 72057594037927936 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266|) (<= .cse6 (+ .cse7 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| 36028797002186752)) (<= |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290| 1)) (< (+ .cse7 36028797018963968 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266|) .cse6) (<= (+ .cse3 .cse4 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| 72057594054705153) .cse2) (<= (+ .cse8 (mod |c_base2flt_#res| 4294967296) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| 1) .cse2) (<= 4294967296 |aux_mod_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102|) (<= 4294967296 |aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104|) (< .cse2 (+ .cse8 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| 1)))))) (or (forall ((|aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| Int) (|aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102| Int)) (or (< |aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| 0) (< (* 4294967296 |aux_div_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102|) (+ 2147483649 |aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| (* 4294967296 |aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104|))) (<= (div (+ (* |aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| (- 16777216)) (mod |c_base2flt_#res| 4294967296) (- 16777216)) (- 4294967296)) (+ (div (+ (- 4294967296) (* |aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| 16777216)) 4294967296) 1)) (< (+ |aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| 1) |aux_div_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102|))) .cse0 .cse1)))) (<= 2147483776 |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61|) (< |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| 0))) is different from false [2021-11-19 14:54:49,466 WARN L838 $PredicateComparison]: unable to prove that (forall ((|aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| Int)) (or (let ((.cse10 (* c_base2flt_~__retres4~0 (- 1)))) (let ((.cse8 (<= (div (+ (- 1) .cse10 (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| 16777216)) (- 72057594037927936)) (+ (div (+ (- 16777216) (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| (- 16777216)) c_base2flt_~__retres4~0) 72057594037927936) 1))) (.cse9 (<= (div (+ (* (div (+ (- 1) .cse10) (- 16777216)) (- 1)) 2147483648) (- 4294967296)) (+ (div (+ (- 4294967295) (div (+ (- 16777216) c_base2flt_~__retres4~0) 16777216)) 4294967296) 1)))) (and (forall ((|aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| Int) (|aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180| Int) (|aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| Int) (|aux_mod_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290| Int)) (let ((.cse3 (* 72057594037927936 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266|)) (.cse7 (* 16777216 |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61|))) (let ((.cse5 (* 72057594037927936 |aux_div_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102|)) (.cse4 (+ (* 16777216 |aux_mod_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102|) .cse3 .cse7)) (.cse1 (* 16777216 |aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104|)) (.cse2 (* 72057594037927936 |aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104|)) (.cse0 (+ .cse3 .cse7)) (.cse6 (* 4294967296 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180|))) (or (< .cse0 (+ .cse1 .cse2 72057594037927937 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266|)) (<= (+ (* 72057594037927936 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290|) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| 72057594054705153) .cse3) (exists ((v_subst_1 Int)) (and (< v_subst_1 2147483776) (<= 0 v_subst_1) (< (+ (div (+ (* |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| (- 1)) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| 72057594037927936) (* v_subst_1 (- 16777216)) (- 16777217) (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| 16777216)) 72057594037927936) 1) (div (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| (- 72057594037927936)) (* v_subst_1 16777216) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| (- 16777216))) (- 72057594037927936))))) (<= |aux_div_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102| (+ |aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| 1)) (<= 72057594037927936 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266|) (<= .cse4 (+ .cse5 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| 36028797002186752)) (<= |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290| 1)) (< (+ .cse5 36028797018963968 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266|) .cse4) (<= (+ .cse6 (mod c_base2flt_~__retres4~0 4294967296) |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| 1) .cse0) (<= (+ .cse1 .cse2 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| 72057594054705153) .cse0) (<= 4294967296 |aux_mod_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102|) (<= 4294967296 |aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104|) (< .cse0 (+ .cse6 |aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_180_290_266| 1)))))) (or .cse8 (forall ((|aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_62| Int) (|aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_62| Int)) (or (<= 4294967296 |aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_62|) (< |aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_62| (mod c_base2flt_~__retres4~0 4294967296)) (exists ((|aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| Int)) (and (<= 0 |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61|) (< (+ (div (+ |aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_62| (* |aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_62| 4294967296) (- 16777216) (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| (- 16777216))) 72057594037927936) 1) (div (+ (- 1) (* |aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_62| (- 4294967296)) (* |aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_62| (- 1)) (* |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| 16777216)) (- 72057594037927936))) (< |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| 2147483776))))) .cse9) (or (forall ((|aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| Int) (|aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102| Int)) (or (< |aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| 0) (<= (div (+ (* |aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| (- 16777216)) (mod c_base2flt_~__retres4~0 4294967296) (- 16777216)) (- 4294967296)) (+ (div (+ (- 4294967296) (* |aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| 16777216)) 4294967296) 1)) (< (* 4294967296 |aux_div_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102|) (+ 2147483649 |aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| (* 4294967296 |aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104|))) (< (+ |aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_280_104| 1) |aux_div_aux_div_v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13_84_102|))) .cse8 .cse9)))) (<= 2147483776 |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61|) (< |aux_mod_aux_div_v_ULTIMATE.start_mulflt_~b#1_24_48_61| 0))) is different from false [2021-11-19 14:54:55,537 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 2 not checked. [2021-11-19 14:54:55,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622740185] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:54:55,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:54:55,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 9] total 24 [2021-11-19 14:54:55,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968590885] [2021-11-19 14:54:55,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:54:55,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:54:55,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:54:55,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:54:55,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=399, Unknown=6, NotChecked=82, Total=552 [2021-11-19 14:54:55,540 INFO L87 Difference]: Start difference. First operand 155 states and 180 transitions. Second operand has 8 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-19 14:54:56,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:54:56,182 INFO L93 Difference]: Finished difference Result 213 states and 238 transitions. [2021-11-19 14:54:56,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:54:56,183 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 72 [2021-11-19 14:54:56,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:54:56,186 INFO L225 Difference]: With dead ends: 213 [2021-11-19 14:54:56,186 INFO L226 Difference]: Without dead ends: 212 [2021-11-19 14:54:56,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=77, Invalid=477, Unknown=6, NotChecked=90, Total=650 [2021-11-19 14:54:56,188 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 80 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:54:56,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 407 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:54:56,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-19 14:54:56,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 139. [2021-11-19 14:54:56,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 118 states have (on average 1.1864406779661016) internal successors, (140), 127 states have internal predecessors, (140), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 14:54:56,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 153 transitions. [2021-11-19 14:54:56,208 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 153 transitions. Word has length 72 [2021-11-19 14:54:56,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:54:56,208 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 153 transitions. [2021-11-19 14:54:56,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-19 14:54:56,209 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 153 transitions. [2021-11-19 14:54:56,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-19 14:54:56,210 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:54:56,210 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:54:56,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:54:56,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable548 [2021-11-19 14:54:56,425 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:54:56,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:54:56,426 INFO L85 PathProgramCache]: Analyzing trace with hash -175695914, now seen corresponding path program 1 times [2021-11-19 14:54:56,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:54:56,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997728604] [2021-11-19 14:54:56,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:54:56,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:54:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:54:56,745 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 3 proven. 83 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:54:56,745 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:54:56,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997728604] [2021-11-19 14:54:56,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997728604] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:54:56,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951749039] [2021-11-19 14:54:56,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:54:56,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:54:56,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:54:56,747 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:54:56,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-19 14:54:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:54:56,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 14:54:56,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:54:57,297 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 21 proven. 75 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 14:54:57,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:54:58,039 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 3 proven. 83 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:54:58,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951749039] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:54:58,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2140605788] [2021-11-19 14:54:58,043 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2021-11-19 14:54:58,043 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:54:58,043 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:54:58,044 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:54:58,044 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:54:58,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:54:58,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,079 INFO L180 QuantifierPusher]: treesize reduction 6, result has 86.0 percent of original size [2021-11-19 14:54:58,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 14:54:58,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,094 INFO L180 QuantifierPusher]: treesize reduction 6, result has 92.5 percent of original size [2021-11-19 14:54:58,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-19 14:54:58,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,124 INFO L180 QuantifierPusher]: treesize reduction 6, result has 76.9 percent of original size [2021-11-19 14:54:58,125 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-19 14:54:58,127 INFO L180 QuantifierPusher]: treesize reduction 6, result has 76.9 percent of original size [2021-11-19 14:54:58,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-19 14:54:58,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-19 14:54:58,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,146 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:54:58,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,157 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:54:58,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:54:58,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,188 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:54:58,191 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:54:58,194 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:54:58,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:54:58,208 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:54:58,213 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:54:58,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,242 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:54:58,244 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:54:58,248 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,252 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:54:58,255 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:54:58,263 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:54:58,268 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:54:58,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,327 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:54:58,329 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:54:58,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:54:58,353 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,358 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:54:58,361 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:54:58,367 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,385 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:54:58,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,417 INFO L180 QuantifierPusher]: treesize reduction 15, result has 89.0 percent of original size [2021-11-19 14:54:58,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-11-19 14:54:58,456 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,462 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:54:58,464 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:54:58,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:54:58,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:54:58,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,529 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 18 for LOIs [2021-11-19 14:54:58,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,587 INFO L180 QuantifierPusher]: treesize reduction 18, result has 75.0 percent of original size [2021-11-19 14:54:58,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-19 14:54:58,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,614 INFO L180 QuantifierPusher]: treesize reduction 9, result has 92.9 percent of original size [2021-11-19 14:54:58,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-11-19 14:54:58,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,650 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 14:54:58,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:54:58,662 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 14:54:58,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:54:58,669 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:58,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 14:54:58,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:58,723 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:55:05,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 14:55:05,545 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:55:05,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2021-11-19 14:55:05,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414448776] [2021-11-19 14:55:05,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 14:55:05,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-19 14:55:05,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:55:05,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-19 14:55:05,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=1402, Unknown=0, NotChecked=0, Total=1722 [2021-11-19 14:55:05,548 INFO L87 Difference]: Start difference. First operand 139 states and 153 transitions. Second operand has 25 states, 25 states have (on average 5.32) internal successors, (133), 25 states have internal predecessors, (133), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 14:55:18,247 WARN L227 SmtUtils]: Spent 12.18s on a formula simplification. DAG size of input: 41 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 14:55:37,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:55:37,672 INFO L93 Difference]: Finished difference Result 458 states and 528 transitions. [2021-11-19 14:55:37,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-19 14:55:37,673 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.32) internal successors, (133), 25 states have internal predecessors, (133), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2021-11-19 14:55:37,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:55:37,676 INFO L225 Difference]: With dead ends: 458 [2021-11-19 14:55:37,676 INFO L226 Difference]: Without dead ends: 362 [2021-11-19 14:55:37,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 181 SyntacticMatches, 13 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1241 ImplicationChecksByTransitivity, 38.5s TimeCoverageRelationStatistics Valid=654, Invalid=2311, Unknown=5, NotChecked=0, Total=2970 [2021-11-19 14:55:37,680 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 307 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:55:37,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 751 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-19 14:55:37,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-11-19 14:55:37,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 172. [2021-11-19 14:55:37,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 151 states have (on average 1.1788079470198676) internal successors, (178), 160 states have internal predecessors, (178), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 14:55:37,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 191 transitions. [2021-11-19 14:55:37,705 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 191 transitions. Word has length 73 [2021-11-19 14:55:37,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:55:37,706 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 191 transitions. [2021-11-19 14:55:37,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.32) internal successors, (133), 25 states have internal predecessors, (133), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 14:55:37,706 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 191 transitions. [2021-11-19 14:55:37,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-19 14:55:37,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:55:37,708 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:55:37,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-19 14:55:37,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable549 [2021-11-19 14:55:37,921 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:55:37,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:55:37,922 INFO L85 PathProgramCache]: Analyzing trace with hash -552622049, now seen corresponding path program 1 times [2021-11-19 14:55:37,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:55:37,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816267128] [2021-11-19 14:55:37,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:55:37,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:55:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:55:38,153 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 3 proven. 127 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:55:38,154 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:55:38,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816267128] [2021-11-19 14:55:38,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816267128] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:55:38,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922195743] [2021-11-19 14:55:38,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:55:38,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:55:38,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:55:38,158 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:55:38,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-19 14:55:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:55:38,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 14:55:38,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:55:38,591 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 21 proven. 119 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 14:55:38,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:55:39,332 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 3 proven. 127 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:55:39,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922195743] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:55:39,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [148877739] [2021-11-19 14:55:39,335 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2021-11-19 14:55:39,335 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:55:39,336 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:55:39,336 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:55:39,336 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:55:39,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:55:39,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,367 INFO L180 QuantifierPusher]: treesize reduction 6, result has 86.0 percent of original size [2021-11-19 14:55:39,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 14:55:39,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,381 INFO L180 QuantifierPusher]: treesize reduction 6, result has 92.5 percent of original size [2021-11-19 14:55:39,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-19 14:55:39,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,416 INFO L180 QuantifierPusher]: treesize reduction 6, result has 76.9 percent of original size [2021-11-19 14:55:39,418 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-19 14:55:39,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,429 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-19 14:55:39,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:55:39,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,448 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-19 14:55:39,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,475 INFO L180 QuantifierPusher]: treesize reduction 15, result has 85.0 percent of original size [2021-11-19 14:55:39,477 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-19 14:55:39,481 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,485 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:55:39,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-19 14:55:39,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:55:39,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-19 14:55:39,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,538 INFO L180 QuantifierPusher]: treesize reduction 15, result has 85.8 percent of original size [2021-11-19 14:55:39,539 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-19 14:55:39,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:55:39,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-19 14:55:39,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:55:39,569 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-19 14:55:39,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,606 INFO L180 QuantifierPusher]: treesize reduction 15, result has 86.6 percent of original size [2021-11-19 14:55:39,608 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-19 14:55:39,612 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:55:39,622 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-19 14:55:39,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:55:39,640 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,644 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-19 14:55:39,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,680 INFO L180 QuantifierPusher]: treesize reduction 15, result has 90.6 percent of original size [2021-11-19 14:55:39,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-19 14:55:39,743 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:55:39,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:55:39,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,773 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:55:39,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:39,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:55:39,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,831 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 18 for LOIs [2021-11-19 14:55:39,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,896 INFO L180 QuantifierPusher]: treesize reduction 18, result has 75.0 percent of original size [2021-11-19 14:55:39,898 INFO L185 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-11-19 14:55:39,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,920 INFO L180 QuantifierPusher]: treesize reduction 17, result has 86.5 percent of original size [2021-11-19 14:55:39,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-11-19 14:55:39,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,948 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 14:55:39,950 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:55:39,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:39,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:40,003 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 14:55:40,005 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:55:40,006 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:55:45,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [148877739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:55:45,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:55:45,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [11, 11, 11] total 51 [2021-11-19 14:55:45,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137296679] [2021-11-19 14:55:45,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:55:45,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-19 14:55:45,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:55:45,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-19 14:55:45,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=2061, Unknown=0, NotChecked=0, Total=2550 [2021-11-19 14:55:45,467 INFO L87 Difference]: Start difference. First operand 172 states and 191 transitions. Second operand has 24 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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) [2021-11-19 14:55:47,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:55:47,411 INFO L93 Difference]: Finished difference Result 319 states and 360 transitions. [2021-11-19 14:55:47,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-19 14:55:47,412 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 77 [2021-11-19 14:55:47,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:55:47,415 INFO L225 Difference]: With dead ends: 319 [2021-11-19 14:55:47,415 INFO L226 Difference]: Without dead ends: 317 [2021-11-19 14:55:47,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 181 SyntacticMatches, 10 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1977 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=678, Invalid=2744, Unknown=0, NotChecked=0, Total=3422 [2021-11-19 14:55:47,417 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 245 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:55:47,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 425 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-19 14:55:47,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-11-19 14:55:47,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 196. [2021-11-19 14:55:47,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 170 states have (on average 1.1823529411764706) internal successors, (201), 181 states have internal predecessors, (201), 7 states have call successors, (7), 4 states have call predecessors, (7), 9 states have return successors, (18), 10 states have call predecessors, (18), 7 states have call successors, (18) [2021-11-19 14:55:47,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 226 transitions. [2021-11-19 14:55:47,446 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 226 transitions. Word has length 77 [2021-11-19 14:55:47,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:55:47,446 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 226 transitions. [2021-11-19 14:55:47,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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) [2021-11-19 14:55:47,447 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 226 transitions. [2021-11-19 14:55:47,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-19 14:55:47,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:55:47,448 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:55:47,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:55:47,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable651 [2021-11-19 14:55:47,664 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:55:47,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:55:47,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1751266573, now seen corresponding path program 1 times [2021-11-19 14:55:47,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:55:47,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710847457] [2021-11-19 14:55:47,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:55:47,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:55:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:55:47,897 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 127 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 14:55:47,897 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:55:47,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710847457] [2021-11-19 14:55:47,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710847457] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:55:47,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153820007] [2021-11-19 14:55:47,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:55:47,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:55:47,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:55:47,901 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:55:47,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-19 14:55:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:55:47,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 14:55:47,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:55:48,348 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 21 proven. 119 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-19 14:55:48,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:55:49,051 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 127 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 14:55:49,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153820007] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:55:49,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1460548492] [2021-11-19 14:55:49,054 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-19 14:55:49,055 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:55:49,055 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:55:49,055 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:55:49,055 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:55:49,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:55:49,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,114 INFO L180 QuantifierPusher]: treesize reduction 8, result has 69.2 percent of original size [2021-11-19 14:55:49,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-19 14:55:49,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,126 INFO L180 QuantifierPusher]: treesize reduction 6, result has 86.0 percent of original size [2021-11-19 14:55:49,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 14:55:49,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,141 INFO L180 QuantifierPusher]: treesize reduction 6, result has 92.5 percent of original size [2021-11-19 14:55:49,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-19 14:55:49,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,159 INFO L180 QuantifierPusher]: treesize reduction 6, result has 76.9 percent of original size [2021-11-19 14:55:49,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-19 14:55:49,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,163 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:55:49,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:55:49,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:55:49,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,192 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:55:49,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:55:49,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:55:49,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:55:49,207 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:55:49,211 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:55:49,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,234 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:55:49,236 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:55:49,239 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,242 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:55:49,243 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,247 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:55:49,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,252 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:55:49,261 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:55:49,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,288 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 14:55:49,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:55:49,294 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:55:49,298 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:55:49,304 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:55:49,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:55:49,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,326 INFO L180 QuantifierPusher]: treesize reduction 15, result has 89.0 percent of original size [2021-11-19 14:55:49,329 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-11-19 14:55:49,356 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:55:49,360 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 14:55:49,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,370 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:55:49,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,398 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:55:49,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 14:55:49,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,425 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 18 for LOIs [2021-11-19 14:55:49,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,472 INFO L180 QuantifierPusher]: treesize reduction 20, result has 63.6 percent of original size [2021-11-19 14:55:49,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:55:49,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,512 INFO L180 QuantifierPusher]: treesize reduction 18, result has 75.0 percent of original size [2021-11-19 14:55:49,514 INFO L185 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-11-19 14:55:49,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,532 INFO L180 QuantifierPusher]: treesize reduction 17, result has 86.5 percent of original size [2021-11-19 14:55:49,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-11-19 14:55:49,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,555 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 14:55:49,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:55:49,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:55:49,592 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 14:55:49,593 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 14:55:49,594 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:55:55,686 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 14:55:55,687 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:55:55,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 29 [2021-11-19 14:55:55,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053863732] [2021-11-19 14:55:55,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 14:55:55,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-19 14:55:55,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:55:55,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-19 14:55:55,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=515, Invalid=1555, Unknown=0, NotChecked=0, Total=2070 [2021-11-19 14:55:55,691 INFO L87 Difference]: Start difference. First operand 196 states and 226 transitions. Second operand has 29 states, 29 states have (on average 5.379310344827586) internal successors, (156), 29 states have internal predecessors, (156), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-19 14:55:56,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:55:56,390 INFO L93 Difference]: Finished difference Result 656 states and 790 transitions. [2021-11-19 14:55:56,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-19 14:55:56,391 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 5.379310344827586) internal successors, (156), 29 states have internal predecessors, (156), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2021-11-19 14:55:56,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:55:56,396 INFO L225 Difference]: With dead ends: 656 [2021-11-19 14:55:56,397 INFO L226 Difference]: Without dead ends: 546 [2021-11-19 14:55:56,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 187 SyntacticMatches, 14 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1848 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=596, Invalid=1756, Unknown=0, NotChecked=0, Total=2352 [2021-11-19 14:55:56,399 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 390 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:55:56,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 327 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:55:56,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2021-11-19 14:55:56,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 208. [2021-11-19 14:55:56,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 182 states have (on average 1.1483516483516483) internal successors, (209), 193 states have internal predecessors, (209), 7 states have call successors, (7), 4 states have call predecessors, (7), 9 states have return successors, (18), 10 states have call predecessors, (18), 7 states have call successors, (18) [2021-11-19 14:55:56,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 234 transitions. [2021-11-19 14:55:56,447 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 234 transitions. Word has length 78 [2021-11-19 14:55:56,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:55:56,448 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 234 transitions. [2021-11-19 14:55:56,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.379310344827586) internal successors, (156), 29 states have internal predecessors, (156), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-19 14:55:56,449 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 234 transitions. [2021-11-19 14:55:56,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-19 14:55:56,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:55:56,451 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:55:56,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-19 14:55:56,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable753,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:55:56,665 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:55:56,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:55:56,666 INFO L85 PathProgramCache]: Analyzing trace with hash -696147242, now seen corresponding path program 2 times [2021-11-19 14:55:56,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:55:56,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874409176] [2021-11-19 14:55:56,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:55:56,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:55:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:55:57,436 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 3 proven. 463 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:55:57,436 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:55:57,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874409176] [2021-11-19 14:55:57,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874409176] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:55:57,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978962802] [2021-11-19 14:55:57,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 14:55:57,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:55:57,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:55:57,439 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:55:57,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-19 14:55:57,513 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-19 14:55:57,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:55:57,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 14:55:57,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:56:05,151 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2021-11-19 14:56:05,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:57:29,580 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2021-11-19 14:57:29,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978962802] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:57:29,580 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:57:29,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [18] total 30 [2021-11-19 14:57:29,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672087389] [2021-11-19 14:57:29,581 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:57:29,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 14:57:29,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:57:29,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 14:57:29,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=769, Unknown=10, NotChecked=0, Total=870 [2021-11-19 14:57:29,582 INFO L87 Difference]: Start difference. First operand 208 states and 234 transitions. Second operand has 14 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-19 14:57:42,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:57:42,942 INFO L93 Difference]: Finished difference Result 221 states and 247 transitions. [2021-11-19 14:57:42,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 14:57:42,943 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 113 [2021-11-19 14:57:42,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:57:42,944 INFO L225 Difference]: With dead ends: 221 [2021-11-19 14:57:42,944 INFO L226 Difference]: Without dead ends: 220 [2021-11-19 14:57:42,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 46.5s TimeCoverageRelationStatistics Valid=118, Invalid=991, Unknown=13, NotChecked=0, Total=1122 [2021-11-19 14:57:42,946 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 23 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 90 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:57:42,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 459 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 135 Invalid, 0 Unknown, 90 Unchecked, 0.4s Time] [2021-11-19 14:57:42,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-11-19 14:57:42,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 215. [2021-11-19 14:57:42,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 189 states have (on average 1.1481481481481481) internal successors, (217), 199 states have internal predecessors, (217), 7 states have call successors, (7), 4 states have call predecessors, (7), 9 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) [2021-11-19 14:57:42,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 242 transitions. [2021-11-19 14:57:42,971 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 242 transitions. Word has length 113 [2021-11-19 14:57:42,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:57:42,971 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 242 transitions. [2021-11-19 14:57:42,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-19 14:57:42,972 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 242 transitions. [2021-11-19 14:57:42,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-19 14:57:42,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:57:42,973 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:57:43,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-19 14:57:43,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable867,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:57:43,189 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 14:57:43,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:57:43,189 INFO L85 PathProgramCache]: Analyzing trace with hash -105727884, now seen corresponding path program 1 times [2021-11-19 14:57:43,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:57:43,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977248164] [2021-11-19 14:57:43,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:57:43,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:57:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:57:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 3 proven. 463 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:57:44,678 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:57:44,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977248164] [2021-11-19 14:57:44,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977248164] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:57:44,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801206004] [2021-11-19 14:57:44,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:57:44,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:57:44,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:57:44,680 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:57:44,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-19 14:57:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:57:44,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-19 14:57:44,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:57:46,167 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-11-19 14:57:46,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:58:01,208 WARN L227 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 17 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-19 15:00:53,150 WARN L227 SmtUtils]: Spent 13.72s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:01:40,980 WARN L227 SmtUtils]: Spent 27.59s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:01:42,322 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2021-11-19 15:01:42,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801206004] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:01:42,322 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:01:42,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 12] imperfect sequences [18] total 37 [2021-11-19 15:01:42,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83161526] [2021-11-19 15:01:42,323 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:01:42,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-19 15:01:42,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:01:42,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-19 15:01:42,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1213, Unknown=4, NotChecked=0, Total=1332 [2021-11-19 15:01:42,324 INFO L87 Difference]: Start difference. First operand 215 states and 242 transitions. Second operand has 21 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-19 15:01:44,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:01:44,155 INFO L93 Difference]: Finished difference Result 261 states and 288 transitions. [2021-11-19 15:01:44,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 15:01:44,156 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 114 [2021-11-19 15:01:44,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:01:44,158 INFO L225 Difference]: With dead ends: 261 [2021-11-19 15:01:44,158 INFO L226 Difference]: Without dead ends: 256 [2021-11-19 15:01:44,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 70.7s TimeCoverageRelationStatistics Valid=158, Invalid=1560, Unknown=4, NotChecked=0, Total=1722 [2021-11-19 15:01:44,160 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 156 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:01:44,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 685 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 261 Invalid, 0 Unknown, 27 Unchecked, 1.1s Time] [2021-11-19 15:01:44,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-19 15:01:44,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 204. [2021-11-19 15:01:44,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 183 states have (on average 1.1475409836065573) internal successors, (210), 191 states have internal predecessors, (210), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 15:01:44,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 223 transitions. [2021-11-19 15:01:44,191 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 223 transitions. Word has length 114 [2021-11-19 15:01:44,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:01:44,192 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 223 transitions. [2021-11-19 15:01:44,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-19 15:01:44,193 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 223 transitions. [2021-11-19 15:01:44,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-19 15:01:44,195 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:01:44,195 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:01:44,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-19 15:01:44,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable868,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:01:44,405 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 15:01:44,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:01:44,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1905580260, now seen corresponding path program 1 times [2021-11-19 15:01:44,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:01:44,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484878640] [2021-11-19 15:01:44,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:01:44,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:01:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:01:45,882 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 3 proven. 466 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 15:01:45,882 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:01:45,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484878640] [2021-11-19 15:01:45,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484878640] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:01:45,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099808244] [2021-11-19 15:01:45,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:01:45,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:01:45,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:01:45,884 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:01:45,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-19 15:01:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:01:46,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-19 15:01:46,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:01:48,078 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 24 proven. 455 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-19 15:01:48,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:01:51,806 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 3 proven. 466 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 15:01:51,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099808244] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:01:51,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [891987956] [2021-11-19 15:01:51,808 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-19 15:01:51,808 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 15:01:51,809 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 15:01:51,809 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 15:01:51,809 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 15:01:51,828 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:51,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 15:01:51,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,860 INFO L180 QuantifierPusher]: treesize reduction 6, result has 86.0 percent of original size [2021-11-19 15:01:51,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 15:01:51,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,875 INFO L180 QuantifierPusher]: treesize reduction 6, result has 92.5 percent of original size [2021-11-19 15:01:51,877 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-19 15:01:51,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,890 INFO L180 QuantifierPusher]: treesize reduction 6, result has 76.9 percent of original size [2021-11-19 15:01:51,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-19 15:01:51,893 INFO L180 QuantifierPusher]: treesize reduction 6, result has 76.9 percent of original size [2021-11-19 15:01:51,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-19 15:01:51,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,900 INFO L180 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size [2021-11-19 15:01:51,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-19 15:01:51,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,914 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:51,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:01:51,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:51,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 15:01:51,930 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:51,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:01:51,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,952 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 15:01:51,954 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:01:51,958 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:51,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 15:01:51,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:51,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:01:51,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:51,982 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 15:01:51,984 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:51,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:01:51,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:51,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,010 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 15:01:52,012 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:01:52,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:52,021 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:01:52,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:52,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:01:52,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:52,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:01:52,039 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:52,046 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:01:52,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,062 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 15:01:52,065 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:01:52,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:52,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:01:52,075 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:52,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:01:52,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:52,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:01:52,091 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:52,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:01:52,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,127 INFO L180 QuantifierPusher]: treesize reduction 15, result has 89.0 percent of original size [2021-11-19 15:01:52,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-11-19 15:01:52,172 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:52,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:01:52,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:52,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:01:52,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:52,203 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 15:01:52,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,221 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:01:52,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 15:01:52,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,242 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 18 for LOIs [2021-11-19 15:01:52,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,311 INFO L180 QuantifierPusher]: treesize reduction 18, result has 75.0 percent of original size [2021-11-19 15:01:52,315 INFO L185 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-11-19 15:01:52,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,329 INFO L180 QuantifierPusher]: treesize reduction 17, result has 86.5 percent of original size [2021-11-19 15:01:52,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-11-19 15:01:52,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,355 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 15:01:52,357 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 15:01:52,373 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 15:01:52,374 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 15:01:52,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,408 INFO L180 QuantifierPusher]: treesize reduction 8, result has 93.6 percent of original size [2021-11-19 15:01:52,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-19 15:01:52,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:01:52,482 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 15:02:06,349 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 15:02:06,349 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:02:06,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 49 [2021-11-19 15:02:06,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816711138] [2021-11-19 15:02:06,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:02:06,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-19 15:02:06,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:02:06,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-19 15:02:06,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=786, Invalid=3374, Unknown=0, NotChecked=0, Total=4160 [2021-11-19 15:02:06,353 INFO L87 Difference]: Start difference. First operand 204 states and 223 transitions. Second operand has 49 states, 49 states have (on average 5.3061224489795915) internal successors, (260), 49 states have internal predecessors, (260), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 15:02:23,924 WARN L227 SmtUtils]: Spent 12.79s on a formula simplification. DAG size of input: 51 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:02:35,680 WARN L227 SmtUtils]: Spent 7.31s on a formula simplification. DAG size of input: 46 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:03:22,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:03:22,149 INFO L93 Difference]: Finished difference Result 666 states and 767 transitions. [2021-11-19 15:03:22,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-19 15:03:22,151 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 5.3061224489795915) internal successors, (260), 49 states have internal predecessors, (260), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 114 [2021-11-19 15:03:22,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:03:22,155 INFO L225 Difference]: With dead ends: 666 [2021-11-19 15:03:22,155 INFO L226 Difference]: Without dead ends: 550 [2021-11-19 15:03:22,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 281 SyntacticMatches, 22 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2982 ImplicationChecksByTransitivity, 88.1s TimeCoverageRelationStatistics Valid=1768, Invalid=5875, Unknown=13, NotChecked=0, Total=7656 [2021-11-19 15:03:22,160 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 448 mSDsluCounter, 1792 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:03:22,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [448 Valid, 1775 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 1582 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2021-11-19 15:03:22,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2021-11-19 15:03:22,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 242. [2021-11-19 15:03:22,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 221 states have (on average 1.1447963800904977) internal successors, (253), 229 states have internal predecessors, (253), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 15:03:22,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 266 transitions. [2021-11-19 15:03:22,192 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 266 transitions. Word has length 114 [2021-11-19 15:03:22,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:03:22,193 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 266 transitions. [2021-11-19 15:03:22,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 5.3061224489795915) internal successors, (260), 49 states have internal predecessors, (260), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 15:03:22,193 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 266 transitions. [2021-11-19 15:03:22,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-19 15:03:22,195 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:03:22,196 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:03:22,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-19 15:03:22,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable869 [2021-11-19 15:03:22,417 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 15:03:22,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:03:22,418 INFO L85 PathProgramCache]: Analyzing trace with hash 275419733, now seen corresponding path program 2 times [2021-11-19 15:03:22,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:03:22,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060177167] [2021-11-19 15:03:22,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:03:22,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:03:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:03:23,469 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 3 proven. 640 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 15:03:23,469 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:03:23,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060177167] [2021-11-19 15:03:23,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060177167] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:03:23,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367907742] [2021-11-19 15:03:23,470 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 15:03:23,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:03:23,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:03:23,471 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:03:23,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-19 15:03:24,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 20 check-sat command(s) [2021-11-19 15:03:24,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 15:03:24,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 15:03:24,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:03:25,929 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 21 proven. 632 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-19 15:03:25,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:03:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 3 proven. 640 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 15:03:29,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367907742] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:03:29,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [673860014] [2021-11-19 15:03:29,540 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-19 15:03:29,541 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 15:03:29,541 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 15:03:29,541 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 15:03:29,541 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 15:03:29,558 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,563 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 15:03:29,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,584 INFO L180 QuantifierPusher]: treesize reduction 8, result has 69.2 percent of original size [2021-11-19 15:03:29,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-19 15:03:29,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,593 INFO L180 QuantifierPusher]: treesize reduction 6, result has 86.0 percent of original size [2021-11-19 15:03:29,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 15:03:29,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,605 INFO L180 QuantifierPusher]: treesize reduction 6, result has 92.5 percent of original size [2021-11-19 15:03:29,606 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-19 15:03:29,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,619 INFO L180 QuantifierPusher]: treesize reduction 6, result has 76.9 percent of original size [2021-11-19 15:03:29,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-19 15:03:29,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,624 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:03:29,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,642 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 15:03:29,643 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:03:29,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,671 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 15:03:29,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:03:29,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,690 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 15:03:29,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,699 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:03:29,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,708 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 15:03:29,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:03:29,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,745 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 15:03:29,748 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:03:29,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:03:29,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:03:29,773 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:03:29,781 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,789 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:03:29,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,808 INFO L180 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-11-19 15:03:29,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:03:29,815 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:03:29,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:03:29,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:03:29,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,851 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:03:29,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,870 INFO L180 QuantifierPusher]: treesize reduction 15, result has 89.0 percent of original size [2021-11-19 15:03:29,876 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-11-19 15:03:29,915 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:03:29,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,929 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:03:29,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 15:03:29,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:03:29,981 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 15:03:29,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:29,994 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 18 for LOIs [2021-11-19 15:03:30,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,049 INFO L180 QuantifierPusher]: treesize reduction 20, result has 63.6 percent of original size [2021-11-19 15:03:30,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 15:03:30,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,087 INFO L180 QuantifierPusher]: treesize reduction 18, result has 75.0 percent of original size [2021-11-19 15:03:30,089 INFO L185 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-11-19 15:03:30,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,104 INFO L180 QuantifierPusher]: treesize reduction 17, result has 86.5 percent of original size [2021-11-19 15:03:30,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-11-19 15:03:30,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,128 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 15:03:30,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 15:03:30,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:03:30,164 INFO L180 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-11-19 15:03:30,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 15:03:30,165 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 15:03:39,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 15:03:39,258 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:03:39,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 56 [2021-11-19 15:03:39,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73264259] [2021-11-19 15:03:39,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:03:39,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2021-11-19 15:03:39,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:03:39,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-11-19 15:03:39,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1451, Invalid=3805, Unknown=0, NotChecked=0, Total=5256 [2021-11-19 15:03:39,262 INFO L87 Difference]: Start difference. First operand 242 states and 266 transitions. Second operand has 56 states, 56 states have (on average 5.196428571428571) internal successors, (291), 56 states have internal predecessors, (291), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-19 15:03:40,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:03:40,904 INFO L93 Difference]: Finished difference Result 1152 states and 1317 transitions. [2021-11-19 15:03:40,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-19 15:03:40,905 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 5.196428571428571) internal successors, (291), 56 states have internal predecessors, (291), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 123 [2021-11-19 15:03:40,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:03:40,910 INFO L225 Difference]: With dead ends: 1152 [2021-11-19 15:03:40,910 INFO L226 Difference]: Without dead ends: 1042 [2021-11-19 15:03:40,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 295 SyntacticMatches, 23 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5097 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=1604, Invalid=4096, Unknown=0, NotChecked=0, Total=5700 [2021-11-19 15:03:40,914 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 825 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:03:40,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [825 Valid, 450 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-19 15:03:40,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2021-11-19 15:03:40,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 294. [2021-11-19 15:03:40,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 273 states have (on average 1.1282051282051282) internal successors, (308), 281 states have internal predecessors, (308), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 15:03:40,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 321 transitions. [2021-11-19 15:03:40,960 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 321 transitions. Word has length 123 [2021-11-19 15:03:40,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:03:40,960 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 321 transitions. [2021-11-19 15:03:40,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 5.196428571428571) internal successors, (291), 56 states have internal predecessors, (291), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-19 15:03:40,961 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 321 transitions. [2021-11-19 15:03:40,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-19 15:03:40,963 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:03:40,963 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:03:40,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-19 15:03:41,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable990,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:03:41,168 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-11-19 15:03:41,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:03:41,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1549633884, now seen corresponding path program 2 times [2021-11-19 15:03:41,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:03:41,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645890597] [2021-11-19 15:03:41,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:03:41,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:03:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:03:41,230 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 15:03:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:03:41,310 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 15:03:41,310 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 15:03:41,311 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2021-11-19 15:03:41,313 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2021-11-19 15:03:41,314 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2021-11-19 15:03:41,314 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2021-11-19 15:03:41,314 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2021-11-19 15:03:41,314 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2021-11-19 15:03:41,314 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2021-11-19 15:03:41,315 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2021-11-19 15:03:41,315 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2021-11-19 15:03:41,315 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2021-11-19 15:03:41,315 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2021-11-19 15:03:41,315 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2021-11-19 15:03:41,315 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2021-11-19 15:03:41,316 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2021-11-19 15:03:41,316 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2021-11-19 15:03:41,316 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2021-11-19 15:03:41,316 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2021-11-19 15:03:41,316 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2021-11-19 15:03:41,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1104 [2021-11-19 15:03:41,320 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:03:41,323 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 15:03:41,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 03:03:41 BoogieIcfgContainer [2021-11-19 15:03:41,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 15:03:41,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 15:03:41,416 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 15:03:41,416 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 15:03:41,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:50:55" (3/4) ... [2021-11-19 15:03:41,419 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 15:03:41,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 15:03:41,419 INFO L158 Benchmark]: Toolchain (without parser) took 767656.86ms. Allocated memory was 94.4MB in the beginning and 218.1MB in the end (delta: 123.7MB). Free memory was 50.5MB in the beginning and 124.8MB in the end (delta: -74.3MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2021-11-19 15:03:41,420 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 94.4MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:03:41,420 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.82ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 50.3MB in the beginning and 95.6MB in the end (delta: -45.3MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2021-11-19 15:03:41,420 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.86ms. Allocated memory is still 123.7MB. Free memory was 95.6MB in the beginning and 94.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:03:41,420 INFO L158 Benchmark]: Boogie Preprocessor took 38.65ms. Allocated memory is still 123.7MB. Free memory was 94.4MB in the beginning and 92.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 15:03:41,420 INFO L158 Benchmark]: RCFGBuilder took 826.18ms. Allocated memory is still 123.7MB. Free memory was 92.7MB in the beginning and 86.5MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 15:03:41,421 INFO L158 Benchmark]: TraceAbstraction took 766290.65ms. Allocated memory was 123.7MB in the beginning and 218.1MB in the end (delta: 94.4MB). Free memory was 85.6MB in the beginning and 124.8MB in the end (delta: -39.2MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2021-11-19 15:03:41,421 INFO L158 Benchmark]: Witness Printer took 3.78ms. Allocated memory is still 218.1MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:03:41,421 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 94.4MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 395.82ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 50.3MB in the beginning and 95.6MB in the end (delta: -45.3MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.86ms. Allocated memory is still 123.7MB. Free memory was 95.6MB in the beginning and 94.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.65ms. Allocated memory is still 123.7MB. Free memory was 94.4MB in the beginning and 92.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 826.18ms. Allocated memory is still 123.7MB. Free memory was 92.7MB in the beginning and 86.5MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 766290.65ms. Allocated memory was 123.7MB in the beginning and 218.1MB in the end (delta: 94.4MB). Free memory was 85.6MB in the beginning and 124.8MB in the end (delta: -39.2MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. * Witness Printer took 3.78ms. Allocated memory is still 218.1MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 173, overapproximation of bitwiseAnd at line 174. 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=127, eb=0] [L238] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L80] return (__retres4); [L238] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=127, eb=0] [L238] zero = base2flt(0, 0) [L239] CALL, EXPR base2flt(1, 0) VAL [\old(e)=0, \old(m)=1] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L35] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L47] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24] [L77] EXPR e + 128 [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=1, __retres4=2, e=-24, res=2] [L80] return (__retres4); [L239] RET, EXPR base2flt(1, 0) VAL [base2flt(1, 0)=36028797018963970, ea=127, eb=0, zero=0] [L239] one = base2flt(1, 0) [L240] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=127, \old(m)=33554432] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L29] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L57] COND TRUE 1 VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L59] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L64] COND TRUE e >= 127 [L65] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=33554432, __retres4=4294967295, e=127, m=33554432] [L80] return (__retres4); [L240] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=4294967295, ea=127, eb=0, ma=33554432, one=2, zero=0] [L240] a = base2flt(ma, ea) [L241] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0] [L77] EXPR e + 128 [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=1, e=0, res=1] [L80] return (__retres4); [L241] RET, EXPR base2flt(mb, eb) VAL [a=4294967295, base2flt(mb, eb)=36028797018963969, ea=127, eb=0, ma=33554432, mb=16777216, one=2, zero=0] [L241] b = base2flt(mb, eb) [L242] CALL mulflt(a, b) [L148] unsigned int res ; [L149] unsigned int ma ; [L150] unsigned int mb ; [L151] unsigned long long accu ; [L152] int ea ; [L153] int eb ; [L154] unsigned int tmp ; [L155] unsigned int __retres10 ; [L158] COND FALSE !(a < b) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1, tmp=1] [L165] COND FALSE !(! b) [L171] ma = a & ((1U << 24U) - 1U) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1, tmp=1] [L172] EXPR (int )(a >> 24U) - 128 [L172] ea = (int )(a >> 24U) - 128 [L173] ma = ma | (1U << 24U) [L174] mb = b & ((1U << 24U) - 1U) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1, ea=127, tmp=1] [L175] (int )(b >> 24U) - 128 VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1, ea=127, tmp=1] - 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: 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: 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 71 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 766.1s, OverallIterations: 28, TraceHistogramMax: 24, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 137.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4124 SdHoareTripleChecker+Valid, 14.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4066 mSDsluCounter, 10358 SdHoareTripleChecker+Invalid, 13.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 506 IncrementalHoareTripleChecker+Unchecked, 9290 mSDsCounter, 780 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5894 IncrementalHoareTripleChecker+Invalid, 7180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 780 mSolverCounterUnsat, 1591 mSDtfsCounter, 5894 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3404 GetRequests, 2590 SyntacticMatches, 125 SemanticMatches, 689 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 16439 ImplicationChecksByTransitivity, 340.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=294occurred in iteration=27, InterpolantAutomatonStates: 359, 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, 27 MinimizatonAttempts, 2593 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 552.0s InterpolantComputationTime, 2673 NumberOfCodeBlocks, 2476 NumberOfCodeBlocksAsserted, 65 NumberOfCheckSat, 3618 ConstructedInterpolants, 21 QuantifiedInterpolants, 17881 SizeOfPredicates, 70 NumberOfNonLiveVariables, 2620 ConjunctsInSsa, 261 ConjunctsInUnsatCore, 61 InterpolantComputations, 20 PerfectInterpolantSequences, 3508/9160 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 1.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 78, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 144, TOOLS_POST_TIME: 0.1s, TOOLS_POST_CALL_APPLICATIONS: 30, TOOLS_POST_CALL_TIME: 0.3s, TOOLS_POST_RETURN_APPLICATIONS: 20, TOOLS_POST_RETURN_TIME: 0.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 194, TOOLS_QUANTIFIERELIM_TIME: 0.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 278, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 38, DOMAIN_JOIN_TIME: 0.7s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 8, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 12, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 78, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME: 0.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 12, CALL_SUMMARIZER_APPLICATIONS: 20, CALL_SUMMARIZER_CACHE_MISSES: 3, CALL_SUMMARIZER_OVERALL_TIME: 0.2s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 940, DAG_COMPRESSION_RETAINED_NODES: 213, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-19 15:03:41,657 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-19 15:03:41,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863e144b-b649-4108-b28d-c509a906e65e/bin/utaipan-UbGMyvGFUs/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample