./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/bin/utaipan --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 1ba322bb221e3115ffe27697bd869d6c1c16c347 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/bin/utaipan/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 --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 16:46:24,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 16:46:24,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 16:46:24,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 16:46:24,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 16:46:24,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 16:46:24,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 16:46:24,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 16:46:24,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 16:46:24,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 16:46:24,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 16:46:24,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 16:46:24,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 16:46:24,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 16:46:24,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 16:46:24,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 16:46:24,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 16:46:24,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 16:46:24,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 16:46:24,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 16:46:24,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 16:46:24,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 16:46:24,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 16:46:24,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 16:46:24,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 16:46:24,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 16:46:24,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 16:46:24,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 16:46:24,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 16:46:24,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 16:46:24,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 16:46:24,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 16:46:24,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 16:46:24,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 16:46:24,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 16:46:24,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 16:46:24,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 16:46:24,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 16:46:24,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 16:46:24,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 16:46:24,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 16:46:24,710 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-12-09 16:46:24,727 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 16:46:24,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 16:46:24,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 16:46:24,728 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 16:46:24,728 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 16:46:24,728 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 16:46:24,728 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 16:46:24,729 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 16:46:24,729 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 16:46:24,729 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 16:46:24,729 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 16:46:24,729 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 16:46:24,729 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 16:46:24,729 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 16:46:24,729 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 16:46:24,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 16:46:24,730 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 16:46:24,730 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 16:46:24,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 16:46:24,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 16:46:24,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 16:46:24,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 16:46:24,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 16:46:24,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 16:46:24,731 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-09 16:46:24,731 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 16:46:24,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 16:46:24,731 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 16:46:24,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 16:46:24,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 16:46:24,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 16:46:24,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 16:46:24,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 16:46:24,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 16:46:24,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 16:46:24,732 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 16:46:24,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 16:46:24,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 16:46:24,732 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 16:46:24,732 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 16:46:24,732 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-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ba322bb221e3115ffe27697bd869d6c1c16c347 [2020-12-09 16:46:24,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 16:46:24,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 16:46:24,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 16:46:24,927 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 16:46:24,927 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 16:46:24,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/bin/utaipan/../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c [2020-12-09 16:46:24,970 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/bin/utaipan/data/980e0f788/4b294299620045499fc59a76eb8dc81d/FLAG767030634 [2020-12-09 16:46:25,361 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 16:46:25,361 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c [2020-12-09 16:46:25,368 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/bin/utaipan/data/980e0f788/4b294299620045499fc59a76eb8dc81d/FLAG767030634 [2020-12-09 16:46:25,380 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/bin/utaipan/data/980e0f788/4b294299620045499fc59a76eb8dc81d [2020-12-09 16:46:25,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 16:46:25,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 16:46:25,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 16:46:25,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 16:46:25,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 16:46:25,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:46:25" (1/1) ... [2020-12-09 16:46:25,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de7d5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:46:25, skipping insertion in model container [2020-12-09 16:46:25,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:46:25" (1/1) ... [2020-12-09 16:46:25,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 16:46:25,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 16:46:25,545 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c[511,524] [2020-12-09 16:46:25,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 16:46:25,588 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 16:46:25,596 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c[511,524] [2020-12-09 16:46:25,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 16:46:25,628 INFO L208 MainTranslator]: Completed translation [2020-12-09 16:46:25,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:46:25 WrapperNode [2020-12-09 16:46:25,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 16:46:25,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 16:46:25,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 16:46:25,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 16:46:25,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:46:25" (1/1) ... [2020-12-09 16:46:25,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:46:25" (1/1) ... [2020-12-09 16:46:25,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 16:46:25,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 16:46:25,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 16:46:25,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 16:46:25,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:46:25" (1/1) ... [2020-12-09 16:46:25,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:46:25" (1/1) ... [2020-12-09 16:46:25,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:46:25" (1/1) ... [2020-12-09 16:46:25,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:46:25" (1/1) ... [2020-12-09 16:46:25,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:46:25" (1/1) ... [2020-12-09 16:46:25,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:46:25" (1/1) ... [2020-12-09 16:46:25,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:46:25" (1/1) ... [2020-12-09 16:46:25,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 16:46:25,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 16:46:25,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 16:46:25,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 16:46:25,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:46:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ffe22f8c-2799-4387-9382-efe1acb7b8b4/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 16:46:25,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 16:46:25,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 16:46:25,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 16:46:25,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 16:46:26,459 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 16:46:26,459 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2020-12-09 16:46:26,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:46:26 BoogieIcfgContainer [2020-12-09 16:46:26,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 16:46:26,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 16:46:26,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 16:46:26,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 16:46:26,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:46:25" (1/3) ... [2020-12-09 16:46:26,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523416ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:46:26, skipping insertion in model container [2020-12-09 16:46:26,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:46:25" (2/3) ... [2020-12-09 16:46:26,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523416ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:46:26, skipping insertion in model container [2020-12-09 16:46:26,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:46:26" (3/3) ... [2020-12-09 16:46:26,466 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-2.c.cil.c [2020-12-09 16:46:26,476 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 16:46:26,478 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2020-12-09 16:46:26,485 INFO L253 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2020-12-09 16:46:26,502 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 16:46:26,502 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 16:46:26,502 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 16:46:26,502 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 16:46:26,502 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 16:46:26,503 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 16:46:26,503 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 16:46:26,503 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 16:46:26,515 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-12-09 16:46:26,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 16:46:26,518 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:46:26,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 16:46:26,519 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 16:46:26,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:46:26,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1466437915, now seen corresponding path program 1 times [2020-12-09 16:46:26,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:46:26,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191628077] [2020-12-09 16:46:26,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:46:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:46:26,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:46:26,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191628077] [2020-12-09 16:46:26,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:46:26,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 16:46:26,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543971858] [2020-12-09 16:46:26,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 16:46:26,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 16:46:26,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 16:46:26,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 16:46:26,638 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 2 states. [2020-12-09 16:46:26,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:46:26,656 INFO L93 Difference]: Finished difference Result 209 states and 261 transitions. [2020-12-09 16:46:26,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 16:46:26,656 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-09 16:46:26,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:46:26,664 INFO L225 Difference]: With dead ends: 209 [2020-12-09 16:46:26,664 INFO L226 Difference]: Without dead ends: 106 [2020-12-09 16:46:26,666 INFO L677 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 [2020-12-09 16:46:26,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-12-09 16:46:26,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-12-09 16:46:26,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-12-09 16:46:26,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 124 transitions. [2020-12-09 16:46:26,694 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 124 transitions. Word has length 6 [2020-12-09 16:46:26,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:46:26,694 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 124 transitions. [2020-12-09 16:46:26,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 16:46:26,694 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 124 transitions. [2020-12-09 16:46:26,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 16:46:26,695 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:46:26,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 16:46:26,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 16:46:26,695 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 16:46:26,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:46:26,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1465084380, now seen corresponding path program 1 times [2020-12-09 16:46:26,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:46:26,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18692639] [2020-12-09 16:46:26,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:46:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:46:26,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:46:26,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18692639] [2020-12-09 16:46:26,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:46:26,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 16:46:26,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532649786] [2020-12-09 16:46:26,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 16:46:26,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 16:46:26,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 16:46:26,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 16:46:26,734 INFO L87 Difference]: Start difference. First operand 106 states and 124 transitions. Second operand 3 states. [2020-12-09 16:46:26,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:46:26,825 INFO L93 Difference]: Finished difference Result 209 states and 242 transitions. [2020-12-09 16:46:26,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 16:46:26,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-09 16:46:26,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:46:26,827 INFO L225 Difference]: With dead ends: 209 [2020-12-09 16:46:26,827 INFO L226 Difference]: Without dead ends: 121 [2020-12-09 16:46:26,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 16:46:26,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-12-09 16:46:26,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2020-12-09 16:46:26,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-12-09 16:46:26,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2020-12-09 16:46:26,836 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 6 [2020-12-09 16:46:26,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:46:26,837 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2020-12-09 16:46:26,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 16:46:26,837 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2020-12-09 16:46:26,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 16:46:26,837 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:46:26,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:46:26,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 16:46:26,838 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 16:46:26,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:46:26,838 INFO L82 PathProgramCache]: Analyzing trace with hash -2058053740, now seen corresponding path program 1 times [2020-12-09 16:46:26,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:46:26,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255547832] [2020-12-09 16:46:26,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:46:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:46:26,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:46:26,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255547832] [2020-12-09 16:46:26,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:46:26,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 16:46:26,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096728325] [2020-12-09 16:46:26,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 16:46:26,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 16:46:26,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 16:46:26,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 16:46:26,872 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand 4 states. [2020-12-09 16:46:26,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:46:26,956 INFO L93 Difference]: Finished difference Result 164 states and 187 transitions. [2020-12-09 16:46:26,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 16:46:26,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-09 16:46:26,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:46:26,958 INFO L225 Difference]: With dead ends: 164 [2020-12-09 16:46:26,958 INFO L226 Difference]: Without dead ends: 157 [2020-12-09 16:46:26,958 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 16:46:26,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-12-09 16:46:26,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 120. [2020-12-09 16:46:26,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-12-09 16:46:26,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2020-12-09 16:46:26,967 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 8 [2020-12-09 16:46:26,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:46:26,967 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2020-12-09 16:46:26,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 16:46:26,967 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2020-12-09 16:46:26,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 16:46:26,968 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:46:26,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:46:26,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 16:46:26,968 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 16:46:26,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:46:26,969 INFO L82 PathProgramCache]: Analyzing trace with hash 624843638, now seen corresponding path program 1 times [2020-12-09 16:46:26,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:46:26,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005453517] [2020-12-09 16:46:26,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:46:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:46:26,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:46:26,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005453517] [2020-12-09 16:46:26,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:46:27,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 16:46:27,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243370939] [2020-12-09 16:46:27,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 16:46:27,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 16:46:27,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 16:46:27,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 16:46:27,001 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 3 states. [2020-12-09 16:46:27,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:46:27,058 INFO L93 Difference]: Finished difference Result 155 states and 176 transitions. [2020-12-09 16:46:27,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 16:46:27,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-09 16:46:27,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:46:27,059 INFO L225 Difference]: With dead ends: 155 [2020-12-09 16:46:27,059 INFO L226 Difference]: Without dead ends: 149 [2020-12-09 16:46:27,060 INFO L677 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 [2020-12-09 16:46:27,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-12-09 16:46:27,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 115. [2020-12-09 16:46:27,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-09 16:46:27,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 136 transitions. [2020-12-09 16:46:27,069 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 136 transitions. Word has length 9 [2020-12-09 16:46:27,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:46:27,070 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 136 transitions. [2020-12-09 16:46:27,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 16:46:27,070 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 136 transitions. [2020-12-09 16:46:27,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 16:46:27,071 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:46:27,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:46:27,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 16:46:27,071 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 16:46:27,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:46:27,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1680626273, now seen corresponding path program 1 times [2020-12-09 16:46:27,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:46:27,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48799669] [2020-12-09 16:46:27,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:46:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:46:27,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:46:27,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48799669] [2020-12-09 16:46:27,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:46:27,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 16:46:27,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699607429] [2020-12-09 16:46:27,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 16:46:27,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 16:46:27,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 16:46:27,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 16:46:27,109 INFO L87 Difference]: Start difference. First operand 115 states and 136 transitions. Second operand 3 states. [2020-12-09 16:46:27,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:46:27,136 INFO L93 Difference]: Finished difference Result 194 states and 228 transitions. [2020-12-09 16:46:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 16:46:27,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-09 16:46:27,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:46:27,137 INFO L225 Difference]: With dead ends: 194 [2020-12-09 16:46:27,137 INFO L226 Difference]: Without dead ends: 81 [2020-12-09 16:46:27,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 16:46:27,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-12-09 16:46:27,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-12-09 16:46:27,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-12-09 16:46:27,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 94 transitions. [2020-12-09 16:46:27,143 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 94 transitions. Word has length 9 [2020-12-09 16:46:27,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:46:27,143 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 94 transitions. [2020-12-09 16:46:27,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 16:46:27,143 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 94 transitions. [2020-12-09 16:46:27,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 16:46:27,143 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:46:27,143 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:46:27,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 16:46:27,144 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 16:46:27,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:46:27,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1374393583, now seen corresponding path program 1 times [2020-12-09 16:46:27,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:46:27,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035112844] [2020-12-09 16:46:27,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:46:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:46:27,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:46:27,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035112844] [2020-12-09 16:46:27,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:46:27,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 16:46:27,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55003215] [2020-12-09 16:46:27,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 16:46:27,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 16:46:27,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 16:46:27,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 16:46:27,215 INFO L87 Difference]: Start difference. First operand 81 states and 94 transitions. Second operand 6 states. [2020-12-09 16:46:27,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:46:27,272 INFO L93 Difference]: Finished difference Result 163 states and 182 transitions. [2020-12-09 16:46:27,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 16:46:27,273 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-12-09 16:46:27,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:46:27,274 INFO L225 Difference]: With dead ends: 163 [2020-12-09 16:46:27,274 INFO L226 Difference]: Without dead ends: 133 [2020-12-09 16:46:27,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-09 16:46:27,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-12-09 16:46:27,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 81. [2020-12-09 16:46:27,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-12-09 16:46:27,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 92 transitions. [2020-12-09 16:46:27,279 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 92 transitions. Word has length 10 [2020-12-09 16:46:27,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:46:27,279 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 92 transitions. [2020-12-09 16:46:27,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 16:46:27,279 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 92 transitions. [2020-12-09 16:46:27,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 16:46:27,279 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:46:27,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:46:27,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 16:46:27,280 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 16:46:27,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:46:27,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1383549219, now seen corresponding path program 1 times [2020-12-09 16:46:27,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:46:27,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864472124] [2020-12-09 16:46:27,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:46:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:46:27,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:46:27,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864472124] [2020-12-09 16:46:27,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:46:27,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 16:46:27,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725510869] [2020-12-09 16:46:27,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 16:46:27,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 16:46:27,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 16:46:27,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 16:46:27,304 INFO L87 Difference]: Start difference. First operand 81 states and 92 transitions. Second operand 4 states. [2020-12-09 16:46:27,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:46:27,363 INFO L93 Difference]: Finished difference Result 119 states and 133 transitions. [2020-12-09 16:46:27,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 16:46:27,364 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-09 16:46:27,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:46:27,364 INFO L225 Difference]: With dead ends: 119 [2020-12-09 16:46:27,365 INFO L226 Difference]: Without dead ends: 117 [2020-12-09 16:46:27,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 16:46:27,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-12-09 16:46:27,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 84. [2020-12-09 16:46:27,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-09 16:46:27,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 96 transitions. [2020-12-09 16:46:27,370 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 96 transitions. Word has length 10 [2020-12-09 16:46:27,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:46:27,370 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 96 transitions. [2020-12-09 16:46:27,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 16:46:27,371 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 96 transitions. [2020-12-09 16:46:27,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 16:46:27,371 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:46:27,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:46:27,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-09 16:46:27,372 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 16:46:27,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:46:27,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1217235492, now seen corresponding path program 1 times [2020-12-09 16:46:27,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:46:27,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519405216] [2020-12-09 16:46:27,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:46:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:46:27,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:46:27,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519405216] [2020-12-09 16:46:27,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:46:27,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 16:46:27,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825970981] [2020-12-09 16:46:27,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 16:46:27,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 16:46:27,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 16:46:27,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 16:46:27,403 INFO L87 Difference]: Start difference. First operand 84 states and 96 transitions. Second operand 4 states. [2020-12-09 16:46:27,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:46:27,470 INFO L93 Difference]: Finished difference Result 122 states and 136 transitions. [2020-12-09 16:46:27,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 16:46:27,471 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-09 16:46:27,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:46:27,472 INFO L225 Difference]: With dead ends: 122 [2020-12-09 16:46:27,472 INFO L226 Difference]: Without dead ends: 119 [2020-12-09 16:46:27,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 16:46:27,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-12-09 16:46:27,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 88. [2020-12-09 16:46:27,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-12-09 16:46:27,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 101 transitions. [2020-12-09 16:46:27,478 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 101 transitions. Word has length 10 [2020-12-09 16:46:27,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:46:27,478 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 101 transitions. [2020-12-09 16:46:27,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 16:46:27,478 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 101 transitions. [2020-12-09 16:46:27,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 16:46:27,479 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:46:27,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:46:27,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-09 16:46:27,479 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 16:46:27,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:46:27,480 INFO L82 PathProgramCache]: Analyzing trace with hash 922498902, now seen corresponding path program 1 times [2020-12-09 16:46:27,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:46:27,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754314203] [2020-12-09 16:46:27,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:46:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 16:46:27,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 16:46:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 16:46:27,499 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 16:46:27,515 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 16:46:27,515 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 16:46:27,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-09 16:46:27,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:46:27 BoogieIcfgContainer [2020-12-09 16:46:27,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 16:46:27,537 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 16:46:27,537 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 16:46:27,537 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 16:46:27,537 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:46:26" (3/4) ... [2020-12-09 16:46:27,540 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 16:46:27,540 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 16:46:27,541 INFO L168 Benchmark]: Toolchain (without parser) took 2156.29 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 60.2 MB in the beginning and 66.2 MB in the end (delta: -6.0 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2020-12-09 16:46:27,542 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 96.5 MB. Free memory was 77.2 MB in the beginning and 77.1 MB in the end (delta: 71.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 16:46:27,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.44 ms. Allocated memory is still 96.5 MB. Free memory was 60.0 MB in the beginning and 70.6 MB in the end (delta: -10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 16:46:27,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.07 ms. Allocated memory is still 96.5 MB. Free memory was 70.6 MB in the beginning and 68.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 16:46:27,543 INFO L168 Benchmark]: Boogie Preprocessor took 33.68 ms. Allocated memory is still 96.5 MB. Free memory was 68.2 MB in the beginning and 66.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 16:46:27,544 INFO L168 Benchmark]: RCFGBuilder took 762.36 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 66.1 MB in the beginning and 44.4 MB in the end (delta: 21.7 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. [2020-12-09 16:46:27,544 INFO L168 Benchmark]: TraceAbstraction took 1074.34 ms. Allocated memory is still 117.4 MB. Free memory was 43.6 MB in the beginning and 66.2 MB in the end (delta: -22.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 16:46:27,544 INFO L168 Benchmark]: Witness Printer took 3.29 ms. Allocated memory is still 117.4 MB. Free memory is still 66.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 16:46:27,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 96.5 MB. Free memory was 77.2 MB in the beginning and 77.1 MB in the end (delta: 71.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 243.44 ms. Allocated memory is still 96.5 MB. Free memory was 60.0 MB in the beginning and 70.6 MB in the end (delta: -10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.07 ms. Allocated memory is still 96.5 MB. Free memory was 70.6 MB in the beginning and 68.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.68 ms. Allocated memory is still 96.5 MB. Free memory was 68.2 MB in the beginning and 66.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 762.36 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 66.1 MB in the beginning and 44.4 MB in the end (delta: 21.7 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1074.34 ms. Allocated memory is still 117.4 MB. Free memory was 43.6 MB in the beginning and 66.2 MB in the end (delta: -22.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.29 ms. Allocated memory is still 117.4 MB. Free memory is still 66.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 72. Possible FailurePath: [L222] unsigned int a ; [L223] unsigned int ma = __VERIFIER_nondet_uint(); [L224] signed char ea = __VERIFIER_nondet_char(); [L225] unsigned int b ; [L226] unsigned int mb = __VERIFIER_nondet_uint(); [L227] signed char eb = __VERIFIER_nondet_char(); [L228] unsigned int r_add ; [L229] unsigned int zero ; [L230] int sa ; [L231] int sb ; [L232] int tmp ; [L233] int tmp___0 ; [L234] int tmp___1 ; [L235] int tmp___2 ; [L236] int tmp___3 ; [L237] int tmp___4 ; [L238] int tmp___5 ; [L239] int tmp___6 ; [L240] int tmp___7 ; [L241] int tmp___8 ; [L242] int tmp___9 ; [L243] int __retres23 ; [L21] unsigned int res ; [L22] unsigned int __retres4 ; [L25] COND TRUE ! m [L26] __retres4 = 0U [L76] return (__retres4); [L247] zero = base2flt(0, 0) [L21] unsigned int res ; [L22] unsigned int __retres4 ; [L25] COND FALSE !(! m) [L31] COND FALSE !(m < 1U << 24U) [L53] COND TRUE 1 [L55] COND FALSE !(m >= 1U << 25U) [L72] m = m & ~ (1U << 24U) [L73] EXPR e + 128 [L73] (e + 128) << 24U - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 114 locations, 36 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 793 SDtfs, 666 SDslu, 625 SDs, 0 SdLazy, 322 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 189 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1308 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...