./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh --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 da84b0bfdfce2fad5f551c5bc14b33ff3764ad6f4b0c00bd09707e2922ecd646 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 05:12:03,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:12:03,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:12:03,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:12:03,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:12:03,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:12:03,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:12:03,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:12:03,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:12:03,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:12:03,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:12:03,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:12:03,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:12:03,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:12:03,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:12:03,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:12:03,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:12:03,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:12:03,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:12:03,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:12:03,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:12:03,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:12:03,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:12:03,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:12:03,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:12:03,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:12:03,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:12:03,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:12:03,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:12:03,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:12:03,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:12:03,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:12:03,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:12:03,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:12:03,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:12:03,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:12:03,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:12:03,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:12:03,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:12:03,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:12:03,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:12:03,657 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 05:12:03,671 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:12:03,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:12:03,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:12:03,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:12:03,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:12:03,672 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:12:03,672 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:12:03,672 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:12:03,672 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:12:03,673 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:12:03,673 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:12:03,673 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:12:03,673 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:12:03,673 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:12:03,673 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:12:03,673 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:12:03,673 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:12:03,673 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:12:03,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:12:03,674 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:12:03,674 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:12:03,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:12:03,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:12:03,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:12:03,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:12:03,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:12:03,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:12:03,675 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 05:12:03,675 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:12:03,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:12:03,675 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:12:03,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:12:03,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:12:03,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:12:03,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:12:03,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:12:03,676 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:12:03,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:12:03,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:12:03,676 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:12:03,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:12:03,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:12:03,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:12:03,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da84b0bfdfce2fad5f551c5bc14b33ff3764ad6f4b0c00bd09707e2922ecd646 [2022-12-14 05:12:03,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:12:03,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:12:03,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:12:03,875 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:12:03,876 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:12:03,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2022-12-14 05:12:06,435 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:12:06,591 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:12:06,592 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2022-12-14 05:12:06,598 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/data/d8e41dfdc/97260bdbec684b9abab80ca7dc96a16e/FLAG0fe275d0c [2022-12-14 05:12:06,608 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/data/d8e41dfdc/97260bdbec684b9abab80ca7dc96a16e [2022-12-14 05:12:06,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:12:06,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:12:06,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:12:06,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:12:06,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:12:06,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:12:06" (1/1) ... [2022-12-14 05:12:06,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e9d764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:06, skipping insertion in model container [2022-12-14 05:12:06,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:12:06" (1/1) ... [2022-12-14 05:12:06,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:12:06,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:12:06,734 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c[816,829] [2022-12-14 05:12:06,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:12:06,772 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:12:06,780 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c[816,829] [2022-12-14 05:12:06,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:12:06,811 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:12:06,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:06 WrapperNode [2022-12-14 05:12:06,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:12:06,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:12:06,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:12:06,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:12:06,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:06" (1/1) ... [2022-12-14 05:12:06,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:06" (1/1) ... [2022-12-14 05:12:06,842 INFO L138 Inliner]: procedures = 18, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 167 [2022-12-14 05:12:06,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:12:06,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:12:06,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:12:06,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:12:06,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:06" (1/1) ... [2022-12-14 05:12:06,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:06" (1/1) ... [2022-12-14 05:12:06,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:06" (1/1) ... [2022-12-14 05:12:06,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:06" (1/1) ... [2022-12-14 05:12:06,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:06" (1/1) ... [2022-12-14 05:12:06,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:06" (1/1) ... [2022-12-14 05:12:06,860 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:06" (1/1) ... [2022-12-14 05:12:06,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:06" (1/1) ... [2022-12-14 05:12:06,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:12:06,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:12:06,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:12:06,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:12:06,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:06" (1/1) ... [2022-12-14 05:12:06,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:12:06,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:12:06,887 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:12:06,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:12:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:12:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:12:06,920 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-12-14 05:12:06,920 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-12-14 05:12:06,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:12:06,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:12:06,920 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2022-12-14 05:12:06,920 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2022-12-14 05:12:06,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 05:12:06,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 05:12:06,982 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:12:06,983 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:12:07,296 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:12:07,420 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:12:07,420 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 05:12:07,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:12:07 BoogieIcfgContainer [2022-12-14 05:12:07,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:12:07,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:12:07,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:12:07,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:12:07,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:12:06" (1/3) ... [2022-12-14 05:12:07,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ca13bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:12:07, skipping insertion in model container [2022-12-14 05:12:07,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:06" (2/3) ... [2022-12-14 05:12:07,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ca13bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:12:07, skipping insertion in model container [2022-12-14 05:12:07,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:12:07" (3/3) ... [2022-12-14 05:12:07,431 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_4-2.c.cil.c [2022-12-14 05:12:07,444 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:12:07,444 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-12-14 05:12:07,478 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:12:07,483 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5a416490, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:12:07,483 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-14 05:12:07,486 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 48 states have (on average 1.7083333333333333) internal successors, (82), 70 states have internal predecessors, (82), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 05:12:07,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 05:12:07,491 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:07,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:07,492 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 05:12:07,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:07,495 INFO L85 PathProgramCache]: Analyzing trace with hash 44598272, now seen corresponding path program 1 times [2022-12-14 05:12:07,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:12:07,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750056215] [2022-12-14 05:12:07,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:07,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:12:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:07,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:12:07,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:12:07,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750056215] [2022-12-14 05:12:07,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750056215] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:07,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:12:07,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:12:07,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585857656] [2022-12-14 05:12:07,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:07,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 05:12:07,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:12:07,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 05:12:07,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:12:07,644 INFO L87 Difference]: Start difference. First operand has 82 states, 48 states have (on average 1.7083333333333333) internal successors, (82), 70 states have internal predecessors, (82), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:12:07,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:07,702 INFO L93 Difference]: Finished difference Result 160 states and 196 transitions. [2022-12-14 05:12:07,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 05:12:07,704 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 05:12:07,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:07,710 INFO L225 Difference]: With dead ends: 160 [2022-12-14 05:12:07,710 INFO L226 Difference]: Without dead ends: 76 [2022-12-14 05:12:07,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:12:07,717 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:07,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:12:07,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-12-14 05:12:07,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-12-14 05:12:07,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 46 states have (on average 1.6521739130434783) internal successors, (76), 66 states have internal predecessors, (76), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 05:12:07,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 89 transitions. [2022-12-14 05:12:07,750 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 89 transitions. Word has length 8 [2022-12-14 05:12:07,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:07,751 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 89 transitions. [2022-12-14 05:12:07,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:12:07,751 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 89 transitions. [2022-12-14 05:12:07,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 05:12:07,752 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:07,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:07,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:12:07,753 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 05:12:07,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:07,754 INFO L85 PathProgramCache]: Analyzing trace with hash 43411196, now seen corresponding path program 1 times [2022-12-14 05:12:07,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:12:07,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768960465] [2022-12-14 05:12:07,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:07,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:12:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:07,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:12:07,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:12:07,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768960465] [2022-12-14 05:12:07,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768960465] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:07,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:12:07,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:12:07,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394207381] [2022-12-14 05:12:07,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:07,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:12:07,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:12:07,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:12:07,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:12:07,838 INFO L87 Difference]: Start difference. First operand 76 states and 89 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:12:07,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:07,946 INFO L93 Difference]: Finished difference Result 198 states and 240 transitions. [2022-12-14 05:12:07,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:12:07,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 05:12:07,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:07,949 INFO L225 Difference]: With dead ends: 198 [2022-12-14 05:12:07,949 INFO L226 Difference]: Without dead ends: 124 [2022-12-14 05:12:07,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:12:07,950 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 67 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:07,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 187 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:12:07,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-12-14 05:12:07,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 112. [2022-12-14 05:12:07,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 81 states have (on average 1.5679012345679013) internal successors, (127), 101 states have internal predecessors, (127), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 05:12:07,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 140 transitions. [2022-12-14 05:12:07,960 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 140 transitions. Word has length 8 [2022-12-14 05:12:07,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:07,960 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 140 transitions. [2022-12-14 05:12:07,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:12:07,960 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 140 transitions. [2022-12-14 05:12:07,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 05:12:07,961 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:07,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:07,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:12:07,961 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 05:12:07,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:07,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1928169470, now seen corresponding path program 1 times [2022-12-14 05:12:07,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:12:07,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140238340] [2022-12-14 05:12:07,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:07,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:12:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:08,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:12:08,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:12:08,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140238340] [2022-12-14 05:12:08,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140238340] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:08,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:12:08,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:12:08,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277748807] [2022-12-14 05:12:08,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:08,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:12:08,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:12:08,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:12:08,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:12:08,037 INFO L87 Difference]: Start difference. First operand 112 states and 140 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:12:08,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:08,160 INFO L93 Difference]: Finished difference Result 214 states and 255 transitions. [2022-12-14 05:12:08,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:12:08,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 05:12:08,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:08,162 INFO L225 Difference]: With dead ends: 214 [2022-12-14 05:12:08,162 INFO L226 Difference]: Without dead ends: 138 [2022-12-14 05:12:08,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 05:12:08,163 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 102 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:08,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 250 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:12:08,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-12-14 05:12:08,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 121. [2022-12-14 05:12:08,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 90 states have (on average 1.5222222222222221) internal successors, (137), 110 states have internal predecessors, (137), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 05:12:08,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 150 transitions. [2022-12-14 05:12:08,172 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 150 transitions. Word has length 12 [2022-12-14 05:12:08,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:08,172 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 150 transitions. [2022-12-14 05:12:08,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:12:08,172 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 150 transitions. [2022-12-14 05:12:08,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 05:12:08,173 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:08,173 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:08,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:12:08,173 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 05:12:08,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:08,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1641096383, now seen corresponding path program 1 times [2022-12-14 05:12:08,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:12:08,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028313441] [2022-12-14 05:12:08,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:08,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:12:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:08,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:12:08,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:12:08,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028313441] [2022-12-14 05:12:08,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028313441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:08,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:12:08,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:12:08,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894826504] [2022-12-14 05:12:08,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:08,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:12:08,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:12:08,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:12:08,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:12:08,215 INFO L87 Difference]: Start difference. First operand 121 states and 150 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:12:08,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:08,256 INFO L93 Difference]: Finished difference Result 125 states and 155 transitions. [2022-12-14 05:12:08,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:12:08,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-12-14 05:12:08,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:08,258 INFO L225 Difference]: With dead ends: 125 [2022-12-14 05:12:08,258 INFO L226 Difference]: Without dead ends: 124 [2022-12-14 05:12:08,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:12:08,259 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 3 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:08,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 132 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:12:08,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-12-14 05:12:08,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 119. [2022-12-14 05:12:08,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 89 states have (on average 1.5056179775280898) internal successors, (134), 108 states have internal predecessors, (134), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 05:12:08,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 147 transitions. [2022-12-14 05:12:08,267 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 147 transitions. Word has length 14 [2022-12-14 05:12:08,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:08,267 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 147 transitions. [2022-12-14 05:12:08,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:12:08,267 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 147 transitions. [2022-12-14 05:12:08,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 05:12:08,268 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:08,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:08,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 05:12:08,268 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 05:12:08,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:08,269 INFO L85 PathProgramCache]: Analyzing trace with hash -990495526, now seen corresponding path program 1 times [2022-12-14 05:12:08,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:12:08,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097765931] [2022-12-14 05:12:08,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:08,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:12:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:08,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:12:08,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:12:08,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097765931] [2022-12-14 05:12:08,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097765931] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:08,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:12:08,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:12:08,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370324051] [2022-12-14 05:12:08,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:08,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:12:08,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:12:08,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:12:08,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:12:08,339 INFO L87 Difference]: Start difference. First operand 119 states and 147 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:12:08,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:08,391 INFO L93 Difference]: Finished difference Result 194 states and 234 transitions. [2022-12-14 05:12:08,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:12:08,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 05:12:08,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:08,392 INFO L225 Difference]: With dead ends: 194 [2022-12-14 05:12:08,392 INFO L226 Difference]: Without dead ends: 79 [2022-12-14 05:12:08,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:12:08,393 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 5 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:08,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 205 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:12:08,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-12-14 05:12:08,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-12-14 05:12:08,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 49 states have (on average 1.5918367346938775) internal successors, (78), 68 states have internal predecessors, (78), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 05:12:08,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 91 transitions. [2022-12-14 05:12:08,398 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 91 transitions. Word has length 13 [2022-12-14 05:12:08,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:08,399 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 91 transitions. [2022-12-14 05:12:08,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:12:08,399 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 91 transitions. [2022-12-14 05:12:08,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 05:12:08,399 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:08,400 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:08,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:12:08,400 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 05:12:08,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:08,400 INFO L85 PathProgramCache]: Analyzing trace with hash 694247092, now seen corresponding path program 1 times [2022-12-14 05:12:08,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:12:08,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730861598] [2022-12-14 05:12:08,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:08,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:12:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:08,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:12:08,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:12:08,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730861598] [2022-12-14 05:12:08,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730861598] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:08,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:12:08,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:12:08,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276086253] [2022-12-14 05:12:08,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:08,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:12:08,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:12:08,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:12:08,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:12:08,441 INFO L87 Difference]: Start difference. First operand 79 states and 91 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:12:08,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:08,538 INFO L93 Difference]: Finished difference Result 119 states and 139 transitions. [2022-12-14 05:12:08,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:12:08,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-12-14 05:12:08,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:08,539 INFO L225 Difference]: With dead ends: 119 [2022-12-14 05:12:08,539 INFO L226 Difference]: Without dead ends: 115 [2022-12-14 05:12:08,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:12:08,541 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 70 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:08,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 220 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:12:08,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-12-14 05:12:08,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 103. [2022-12-14 05:12:08,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 73 states have (on average 1.5616438356164384) internal successors, (114), 91 states have internal predecessors, (114), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 05:12:08,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 127 transitions. [2022-12-14 05:12:08,547 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 127 transitions. Word has length 15 [2022-12-14 05:12:08,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:08,548 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 127 transitions. [2022-12-14 05:12:08,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:12:08,548 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 127 transitions. [2022-12-14 05:12:08,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 05:12:08,548 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:08,548 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:08,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 05:12:08,549 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 05:12:08,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:08,549 INFO L85 PathProgramCache]: Analyzing trace with hash 665619736, now seen corresponding path program 1 times [2022-12-14 05:12:08,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:12:08,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478392065] [2022-12-14 05:12:08,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:08,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:12:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:08,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:12:08,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:12:08,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478392065] [2022-12-14 05:12:08,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478392065] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:08,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:12:08,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:12:08,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980462996] [2022-12-14 05:12:08,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:08,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:12:08,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:12:08,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:12:08,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:12:08,584 INFO L87 Difference]: Start difference. First operand 103 states and 127 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:12:08,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:08,673 INFO L93 Difference]: Finished difference Result 123 states and 144 transitions. [2022-12-14 05:12:08,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:12:08,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-12-14 05:12:08,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:08,675 INFO L225 Difference]: With dead ends: 123 [2022-12-14 05:12:08,675 INFO L226 Difference]: Without dead ends: 120 [2022-12-14 05:12:08,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:12:08,676 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 70 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:08,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 219 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:12:08,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-12-14 05:12:08,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 107. [2022-12-14 05:12:08,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 78 states have (on average 1.4871794871794872) internal successors, (116), 95 states have internal predecessors, (116), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 05:12:08,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 129 transitions. [2022-12-14 05:12:08,687 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 129 transitions. Word has length 15 [2022-12-14 05:12:08,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:08,687 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 129 transitions. [2022-12-14 05:12:08,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:12:08,687 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 129 transitions. [2022-12-14 05:12:08,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 05:12:08,688 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:08,688 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:08,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 05:12:08,688 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 05:12:08,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:08,689 INFO L85 PathProgramCache]: Analyzing trace with hash -386379325, now seen corresponding path program 1 times [2022-12-14 05:12:08,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:12:08,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666915709] [2022-12-14 05:12:08,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:08,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:12:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:08,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:12:08,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:12:08,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666915709] [2022-12-14 05:12:08,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666915709] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:08,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:12:08,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:12:08,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094260582] [2022-12-14 05:12:08,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:08,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:12:08,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:12:08,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:12:08,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:12:08,739 INFO L87 Difference]: Start difference. First operand 107 states and 129 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:12:08,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:08,807 INFO L93 Difference]: Finished difference Result 125 states and 150 transitions. [2022-12-14 05:12:08,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:12:08,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-12-14 05:12:08,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:08,809 INFO L225 Difference]: With dead ends: 125 [2022-12-14 05:12:08,809 INFO L226 Difference]: Without dead ends: 123 [2022-12-14 05:12:08,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:12:08,810 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 10 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:08,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 182 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:12:08,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-12-14 05:12:08,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 107. [2022-12-14 05:12:08,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 78 states have (on average 1.4743589743589745) internal successors, (115), 95 states have internal predecessors, (115), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 05:12:08,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 128 transitions. [2022-12-14 05:12:08,820 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 128 transitions. Word has length 18 [2022-12-14 05:12:08,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:08,821 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 128 transitions. [2022-12-14 05:12:08,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:12:08,821 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 128 transitions. [2022-12-14 05:12:08,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 05:12:08,822 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:08,822 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:08,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 05:12:08,822 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 05:12:08,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:08,823 INFO L85 PathProgramCache]: Analyzing trace with hash 272935861, now seen corresponding path program 1 times [2022-12-14 05:12:08,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:12:08,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169328289] [2022-12-14 05:12:08,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:08,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:12:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:12:08,836 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 05:12:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:12:08,867 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 05:12:08,867 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 05:12:08,868 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2022-12-14 05:12:08,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2022-12-14 05:12:08,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2022-12-14 05:12:08,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2022-12-14 05:12:08,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2022-12-14 05:12:08,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2022-12-14 05:12:08,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2022-12-14 05:12:08,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2022-12-14 05:12:08,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2022-12-14 05:12:08,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2022-12-14 05:12:08,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2022-12-14 05:12:08,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2022-12-14 05:12:08,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2022-12-14 05:12:08,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2022-12-14 05:12:08,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2022-12-14 05:12:08,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2022-12-14 05:12:08,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2022-12-14 05:12:08,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2022-12-14 05:12:08,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2022-12-14 05:12:08,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2022-12-14 05:12:08,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2022-12-14 05:12:08,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2022-12-14 05:12:08,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 05:12:08,878 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:08,881 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 05:12:08,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:12:08 BoogieIcfgContainer [2022-12-14 05:12:08,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 05:12:08,903 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 05:12:08,903 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 05:12:08,904 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 05:12:08,904 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:12:07" (3/4) ... [2022-12-14 05:12:08,907 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 05:12:08,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 05:12:08,908 INFO L158 Benchmark]: Toolchain (without parser) took 2295.73ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 98.9MB in the beginning and 117.9MB in the end (delta: -19.0MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2022-12-14 05:12:08,908 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:12:08,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.76ms. Allocated memory is still 134.2MB. Free memory was 98.9MB in the beginning and 85.5MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 05:12:08,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.52ms. Allocated memory is still 134.2MB. Free memory was 85.5MB in the beginning and 83.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:12:08,909 INFO L158 Benchmark]: Boogie Preprocessor took 20.25ms. Allocated memory is still 134.2MB. Free memory was 83.0MB in the beginning and 81.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:12:08,909 INFO L158 Benchmark]: RCFGBuilder took 559.52ms. Allocated memory is still 134.2MB. Free memory was 81.6MB in the beginning and 103.7MB in the end (delta: -22.1MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2022-12-14 05:12:08,909 INFO L158 Benchmark]: TraceAbstraction took 1477.20ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 103.0MB in the beginning and 118.9MB in the end (delta: -15.9MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-12-14 05:12:08,910 INFO L158 Benchmark]: Witness Printer took 3.84ms. Allocated memory is still 165.7MB. Free memory was 118.9MB in the beginning and 117.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:12:08,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.76ms. Allocated memory is still 134.2MB. Free memory was 98.9MB in the beginning and 85.5MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.52ms. Allocated memory is still 134.2MB. Free memory was 85.5MB in the beginning and 83.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.25ms. Allocated memory is still 134.2MB. Free memory was 83.0MB in the beginning and 81.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 559.52ms. Allocated memory is still 134.2MB. Free memory was 81.6MB in the beginning and 103.7MB in the end (delta: -22.1MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1477.20ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 103.0MB in the beginning and 118.9MB in the end (delta: -15.9MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Witness Printer took 3.84ms. Allocated memory is still 165.7MB. Free memory was 118.9MB in the beginning and 117.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 80, overapproximation of bitwiseAnd at line 80. Possible FailurePath: [L230] unsigned int a ; [L231] unsigned int ma = __VERIFIER_nondet_uint(); [L232] signed char ea = __VERIFIER_nondet_char(); [L233] unsigned int b ; [L234] unsigned int mb = __VERIFIER_nondet_uint(); [L235] signed char eb = __VERIFIER_nondet_char(); [L236] unsigned int r_add1 ; [L237] unsigned int r_add2 ; [L238] unsigned int zero ; [L239] int tmp ; [L240] int tmp___0 ; [L241] int __retres14 ; VAL [ea=0, eb=0] [L245] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L29] unsigned int res ; [L30] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L33] COND TRUE ! m [L34] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L84] return (__retres4); [L245] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=0, eb=0] [L245] zero = base2flt(0, 0) [L246] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L29] unsigned int res ; [L30] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L33] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L39] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L61] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L63] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L80] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L81] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L81] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: 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 4 procedures, 82 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 335 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 327 mSDsluCounter, 1474 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 937 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 636 IncrementalHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 537 mSDtfsCounter, 636 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=3, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 75 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 223 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 05:12:08,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh --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 da84b0bfdfce2fad5f551c5bc14b33ff3764ad6f4b0c00bd09707e2922ecd646 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 05:12:10,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:12:10,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:12:10,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:12:10,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:12:10,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:12:10,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:12:10,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:12:10,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:12:10,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:12:10,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:12:10,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:12:10,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:12:10,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:12:10,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:12:10,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:12:10,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:12:10,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:12:10,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:12:10,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:12:10,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:12:10,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:12:10,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:12:10,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:12:10,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:12:10,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:12:10,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:12:10,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:12:10,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:12:10,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:12:10,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:12:10,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:12:10,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:12:10,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:12:10,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:12:10,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:12:10,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:12:10,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:12:10,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:12:10,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:12:10,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:12:10,586 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2022-12-14 05:12:10,600 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:12:10,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:12:10,601 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:12:10,601 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:12:10,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:12:10,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:12:10,602 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:12:10,602 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:12:10,602 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:12:10,602 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:12:10,602 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:12:10,602 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:12:10,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:12:10,603 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:12:10,603 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:12:10,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:12:10,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:12:10,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:12:10,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:12:10,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:12:10,604 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 05:12:10,604 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 05:12:10,604 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 05:12:10,604 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 05:12:10,604 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:12:10,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:12:10,605 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:12:10,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:12:10,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:12:10,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 05:12:10,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:12:10,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:12:10,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:12:10,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:12:10,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:12:10,606 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 05:12:10,606 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 05:12:10,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:12:10,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:12:10,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 05:12:10,607 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da84b0bfdfce2fad5f551c5bc14b33ff3764ad6f4b0c00bd09707e2922ecd646 [2022-12-14 05:12:10,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:12:10,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:12:10,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:12:10,832 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:12:10,832 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:12:10,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2022-12-14 05:12:13,444 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:12:13,623 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:12:13,623 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2022-12-14 05:12:13,629 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/data/c5a7c249b/01cdc906336d47faa797a6f65b10b9eb/FLAG4e87dbbdd [2022-12-14 05:12:13,639 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/data/c5a7c249b/01cdc906336d47faa797a6f65b10b9eb [2022-12-14 05:12:13,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:12:13,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:12:13,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:12:13,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:12:13,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:12:13,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:12:13" (1/1) ... [2022-12-14 05:12:13,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aabd55d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:13, skipping insertion in model container [2022-12-14 05:12:13,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:12:13" (1/1) ... [2022-12-14 05:12:13,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:12:13,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:12:13,770 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c[816,829] [2022-12-14 05:12:13,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:12:13,812 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:12:13,821 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c[816,829] [2022-12-14 05:12:13,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:12:13,852 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:12:13,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:13 WrapperNode [2022-12-14 05:12:13,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:12:13,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:12:13,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:12:13,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:12:13,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:13" (1/1) ... [2022-12-14 05:12:13,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:13" (1/1) ... [2022-12-14 05:12:13,882 INFO L138 Inliner]: procedures = 18, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2022-12-14 05:12:13,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:12:13,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:12:13,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:12:13,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:12:13,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:13" (1/1) ... [2022-12-14 05:12:13,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:13" (1/1) ... [2022-12-14 05:12:13,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:13" (1/1) ... [2022-12-14 05:12:13,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:13" (1/1) ... [2022-12-14 05:12:13,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:13" (1/1) ... [2022-12-14 05:12:13,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:13" (1/1) ... [2022-12-14 05:12:13,902 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:13" (1/1) ... [2022-12-14 05:12:13,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:13" (1/1) ... [2022-12-14 05:12:13,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:12:13,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:12:13,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:12:13,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:12:13,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:13" (1/1) ... [2022-12-14 05:12:13,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:12:13,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:12:13,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:12:13,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:12:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:12:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 05:12:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-12-14 05:12:13,985 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-12-14 05:12:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:12:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:12:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2022-12-14 05:12:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2022-12-14 05:12:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 05:12:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 05:12:14,047 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:12:14,048 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:12:14,275 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:12:14,283 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:12:14,283 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 05:12:14,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:12:14 BoogieIcfgContainer [2022-12-14 05:12:14,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:12:14,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:12:14,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:12:14,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:12:14,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:12:13" (1/3) ... [2022-12-14 05:12:14,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a621bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:12:14, skipping insertion in model container [2022-12-14 05:12:14,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:12:13" (2/3) ... [2022-12-14 05:12:14,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a621bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:12:14, skipping insertion in model container [2022-12-14 05:12:14,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:12:14" (3/3) ... [2022-12-14 05:12:14,293 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_4-2.c.cil.c [2022-12-14 05:12:14,312 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:12:14,313 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-12-14 05:12:14,359 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:12:14,363 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3755ebe1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:12:14,364 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-14 05:12:14,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 62 states have (on average 1.6612903225806452) internal successors, (103), 84 states have internal predecessors, (103), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 05:12:14,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 05:12:14,372 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:14,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:14,373 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 05:12:14,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:14,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1706781765, now seen corresponding path program 1 times [2022-12-14 05:12:14,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:12:14,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522558028] [2022-12-14 05:12:14,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:14,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:12:14,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:12:14,391 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:12:14,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 05:12:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:14,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 05:12:14,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:12:14,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:12:14,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:12:14,494 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:12:14,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522558028] [2022-12-14 05:12:14,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [522558028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:14,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:12:14,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 05:12:14,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547115078] [2022-12-14 05:12:14,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:14,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 05:12:14,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:12:14,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 05:12:14,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:12:14,530 INFO L87 Difference]: Start difference. First operand has 96 states, 62 states have (on average 1.6612903225806452) internal successors, (103), 84 states have internal predecessors, (103), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:12:14,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:14,566 INFO L93 Difference]: Finished difference Result 180 states and 242 transitions. [2022-12-14 05:12:14,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 05:12:14,568 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 05:12:14,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:14,575 INFO L225 Difference]: With dead ends: 180 [2022-12-14 05:12:14,575 INFO L226 Difference]: Without dead ends: 77 [2022-12-14 05:12:14,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:12:14,583 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:14,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:12:14,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-12-14 05:12:14,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-12-14 05:12:14,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 54 states have (on average 1.4444444444444444) internal successors, (78), 67 states have internal predecessors, (78), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 05:12:14,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2022-12-14 05:12:14,625 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 9 [2022-12-14 05:12:14,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:14,625 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2022-12-14 05:12:14,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:12:14,626 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2022-12-14 05:12:14,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 05:12:14,627 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:14,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:14,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:12:14,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:12:14,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 05:12:14,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:14,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1707723031, now seen corresponding path program 1 times [2022-12-14 05:12:14,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:12:14,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484353847] [2022-12-14 05:12:14,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:14,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:12:14,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:12:14,831 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:12:14,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 05:12:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:14,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:12:14,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:12:14,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:12:14,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:12:14,901 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:12:14,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484353847] [2022-12-14 05:12:14,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484353847] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:14,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:12:14,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:12:14,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605860319] [2022-12-14 05:12:14,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:14,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:12:14,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:12:14,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:12:14,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:12:14,904 INFO L87 Difference]: Start difference. First operand 77 states and 91 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:12:14,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:14,961 INFO L93 Difference]: Finished difference Result 159 states and 188 transitions. [2022-12-14 05:12:14,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:12:14,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 05:12:14,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:14,965 INFO L225 Difference]: With dead ends: 159 [2022-12-14 05:12:14,965 INFO L226 Difference]: Without dead ends: 85 [2022-12-14 05:12:14,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:12:14,967 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 9 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:14,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 251 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:12:14,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-12-14 05:12:14,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2022-12-14 05:12:14,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 71 states have internal predecessors, (82), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 05:12:14,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 95 transitions. [2022-12-14 05:12:14,980 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 95 transitions. Word has length 9 [2022-12-14 05:12:14,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:14,981 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 95 transitions. [2022-12-14 05:12:14,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:12:14,981 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 95 transitions. [2022-12-14 05:12:14,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 05:12:14,982 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:14,982 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:14,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 05:12:15,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:12:15,183 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 05:12:15,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:15,184 INFO L85 PathProgramCache]: Analyzing trace with hash -202593319, now seen corresponding path program 1 times [2022-12-14 05:12:15,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:12:15,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983626650] [2022-12-14 05:12:15,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:15,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:12:15,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:12:15,186 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:12:15,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-14 05:12:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:15,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 05:12:15,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:12:15,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:12:15,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:12:15,249 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:12:15,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983626650] [2022-12-14 05:12:15,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983626650] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:15,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:12:15,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:12:15,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697286726] [2022-12-14 05:12:15,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:15,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:12:15,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:12:15,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:12:15,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:12:15,253 INFO L87 Difference]: Start difference. First operand 82 states and 95 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:12:15,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:15,293 INFO L93 Difference]: Finished difference Result 85 states and 99 transitions. [2022-12-14 05:12:15,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:12:15,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-12-14 05:12:15,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:15,294 INFO L225 Difference]: With dead ends: 85 [2022-12-14 05:12:15,295 INFO L226 Difference]: Without dead ends: 84 [2022-12-14 05:12:15,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:12:15,296 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 3 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:15,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 165 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:12:15,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-12-14 05:12:15,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2022-12-14 05:12:15,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 58 states have (on average 1.396551724137931) internal successors, (81), 70 states have internal predecessors, (81), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 05:12:15,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 94 transitions. [2022-12-14 05:12:15,304 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 94 transitions. Word has length 16 [2022-12-14 05:12:15,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:15,305 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 94 transitions. [2022-12-14 05:12:15,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:12:15,305 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 94 transitions. [2022-12-14 05:12:15,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 05:12:15,306 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:15,306 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:15,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-14 05:12:15,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:12:15,508 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 05:12:15,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:15,510 INFO L85 PathProgramCache]: Analyzing trace with hash -531201343, now seen corresponding path program 1 times [2022-12-14 05:12:15,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:12:15,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17409818] [2022-12-14 05:12:15,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:15,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:12:15,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:12:15,518 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:12:15,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-14 05:12:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:15,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 05:12:15,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:12:15,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:12:15,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:12:15,670 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:12:15,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17409818] [2022-12-14 05:12:15,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17409818] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:15,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:12:15,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:12:15,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409634244] [2022-12-14 05:12:15,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:15,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:12:15,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:12:15,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:12:15,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:12:15,675 INFO L87 Difference]: Start difference. First operand 81 states and 94 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:12:15,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:15,729 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2022-12-14 05:12:15,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:12:15,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-12-14 05:12:15,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:15,730 INFO L225 Difference]: With dead ends: 84 [2022-12-14 05:12:15,730 INFO L226 Difference]: Without dead ends: 83 [2022-12-14 05:12:15,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:12:15,731 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 2 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:15,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 164 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:12:15,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-12-14 05:12:15,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2022-12-14 05:12:15,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 69 states have internal predecessors, (80), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 05:12:15,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 93 transitions. [2022-12-14 05:12:15,737 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 93 transitions. Word has length 18 [2022-12-14 05:12:15,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:15,737 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 93 transitions. [2022-12-14 05:12:15,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:12:15,737 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 93 transitions. [2022-12-14 05:12:15,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 05:12:15,738 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:15,738 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:15,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-14 05:12:15,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:12:15,941 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 05:12:15,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:15,942 INFO L85 PathProgramCache]: Analyzing trace with hash -531133817, now seen corresponding path program 1 times [2022-12-14 05:12:15,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:12:15,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474128167] [2022-12-14 05:12:15,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:15,945 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:12:15,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:12:15,948 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:12:15,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 05:12:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:12:16,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:12:16,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:12:16,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:12:16,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:12:16,158 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:12:16,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474128167] [2022-12-14 05:12:16,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [474128167] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:12:16,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:12:16,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:12:16,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657526160] [2022-12-14 05:12:16,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:12:16,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:12:16,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:12:16,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:12:16,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:12:16,161 INFO L87 Difference]: Start difference. First operand 80 states and 93 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:12:16,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:12:16,629 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2022-12-14 05:12:16,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:12:16,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-12-14 05:12:16,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:12:16,631 INFO L225 Difference]: With dead ends: 102 [2022-12-14 05:12:16,631 INFO L226 Difference]: Without dead ends: 99 [2022-12-14 05:12:16,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:12:16,632 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 69 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 05:12:16,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 187 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 05:12:16,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-12-14 05:12:16,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2022-12-14 05:12:16,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.353846153846154) internal successors, (88), 76 states have internal predecessors, (88), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 05:12:16,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 101 transitions. [2022-12-14 05:12:16,640 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 101 transitions. Word has length 18 [2022-12-14 05:12:16,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:12:16,641 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 101 transitions. [2022-12-14 05:12:16,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:12:16,641 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 101 transitions. [2022-12-14 05:12:16,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 05:12:16,642 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:12:16,642 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:12:16,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 05:12:16,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:12:16,844 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 05:12:16,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:12:16,846 INFO L85 PathProgramCache]: Analyzing trace with hash -347921438, now seen corresponding path program 1 times [2022-12-14 05:12:16,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:12:16,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483634304] [2022-12-14 05:12:16,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:12:16,848 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:12:16,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:12:16,852 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 05:12:16,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-14 05:12:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:12:16,903 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 05:12:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:12:16,933 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 05:12:16,934 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 05:12:16,934 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2022-12-14 05:12:16,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2022-12-14 05:12:16,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2022-12-14 05:12:16,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2022-12-14 05:12:16,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2022-12-14 05:12:16,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2022-12-14 05:12:16,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2022-12-14 05:12:16,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2022-12-14 05:12:16,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2022-12-14 05:12:16,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2022-12-14 05:12:16,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2022-12-14 05:12:16,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2022-12-14 05:12:16,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2022-12-14 05:12:16,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2022-12-14 05:12:16,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2022-12-14 05:12:16,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2022-12-14 05:12:16,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2022-12-14 05:12:16,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2022-12-14 05:12:16,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2022-12-14 05:12:16,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2022-12-14 05:12:16,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2022-12-14 05:12:16,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2022-12-14 05:12:16,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-14 05:12:17,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 05:12:17,146 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-14 05:12:17,156 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 05:12:17,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:12:17 BoogieIcfgContainer [2022-12-14 05:12:17,195 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 05:12:17,196 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 05:12:17,196 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 05:12:17,196 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 05:12:17,196 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:12:14" (3/4) ... [2022-12-14 05:12:17,199 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 05:12:17,225 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 05:12:17,225 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 05:12:17,225 INFO L158 Benchmark]: Toolchain (without parser) took 3582.89ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 64.0MB in the beginning and 58.2MB in the end (delta: 5.8MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2022-12-14 05:12:17,225 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 56.6MB. Free memory is still 34.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:12:17,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.57ms. Allocated memory is still 86.0MB. Free memory was 63.7MB in the beginning and 50.1MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 05:12:17,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.14ms. Allocated memory is still 86.0MB. Free memory was 49.8MB in the beginning and 48.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:12:17,226 INFO L158 Benchmark]: Boogie Preprocessor took 22.35ms. Allocated memory is still 86.0MB. Free memory was 48.2MB in the beginning and 46.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:12:17,226 INFO L158 Benchmark]: RCFGBuilder took 379.55ms. Allocated memory is still 86.0MB. Free memory was 46.3MB in the beginning and 51.0MB in the end (delta: -4.7MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-12-14 05:12:17,226 INFO L158 Benchmark]: TraceAbstraction took 2907.69ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 50.2MB in the beginning and 60.3MB in the end (delta: -10.1MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-12-14 05:12:17,227 INFO L158 Benchmark]: Witness Printer took 29.22ms. Allocated memory is still 104.9MB. Free memory was 60.3MB in the beginning and 58.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:12:17,228 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 56.6MB. Free memory is still 34.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 209.57ms. Allocated memory is still 86.0MB. Free memory was 63.7MB in the beginning and 50.1MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.14ms. Allocated memory is still 86.0MB. Free memory was 49.8MB in the beginning and 48.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.35ms. Allocated memory is still 86.0MB. Free memory was 48.2MB in the beginning and 46.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 379.55ms. Allocated memory is still 86.0MB. Free memory was 46.3MB in the beginning and 51.0MB in the end (delta: -4.7MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2907.69ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 50.2MB in the beginning and 60.3MB in the end (delta: -10.1MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Witness Printer took 29.22ms. Allocated memory is still 104.9MB. Free memory was 60.3MB in the beginning and 58.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 81]: integer overflow possible integer overflow possible We found a FailurePath: [L230] unsigned int a ; [L231] unsigned int ma = __VERIFIER_nondet_uint(); [L232] signed char ea = __VERIFIER_nondet_char(); [L233] unsigned int b ; [L234] unsigned int mb = __VERIFIER_nondet_uint(); [L235] signed char eb = __VERIFIER_nondet_char(); [L236] unsigned int r_add1 ; [L237] unsigned int r_add2 ; [L238] unsigned int zero ; [L239] int tmp ; [L240] int tmp___0 ; [L241] int __retres14 ; [L245] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L29] unsigned int res ; [L30] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L33] COND TRUE ! m [L34] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L84] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L245] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0] [L245] zero = base2flt(0, 0) [L246] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L29] unsigned int res ; [L30] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L33] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L39] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L61] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L63] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L80] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L81] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L81] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: 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 4 procedures, 96 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 871 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 425 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 446 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 21 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 65 ConstructedInterpolants, 8 QuantifiedInterpolants, 110 SizeOfPredicates, 2 NumberOfNonLiveVariables, 170 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 05:12:17,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a885badb-1534-4fa6-80e0-a138ccc9b6f3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)