./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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8 --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 Automizer --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 [2022-12-13 11:56:40,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:56:40,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:56:40,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:56:40,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:56:40,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:56:40,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:56:40,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:56:40,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:56:40,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:56:40,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:56:40,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:56:40,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:56:40,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:56:40,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:56:40,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:56:40,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:56:40,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:56:40,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:56:40,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:56:40,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:56:40,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:56:40,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:56:40,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:56:40,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:56:40,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:56:40,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:56:40,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:56:40,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:56:40,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:56:40,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:56:40,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:56:40,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:56:40,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:56:40,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:56:40,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:56:40,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:56:40,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:56:40,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:56:40,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:56:40,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:56:40,443 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 11:56:40,458 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:56:40,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:56:40,458 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:56:40,458 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:56:40,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:56:40,459 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:56:40,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:56:40,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:56:40,460 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:56:40,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:56:40,460 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:56:40,460 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:56:40,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:56:40,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:56:40,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:56:40,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:56:40,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:56:40,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:56:40,461 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:56:40,462 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:56:40,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:56:40,462 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:56:40,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:56:40,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:56:40,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:56:40,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:56:40,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:56:40,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:56:40,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:56:40,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:56:40,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:56:40,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:56:40,464 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:56:40,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:56:40,464 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:56:40,464 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:56:40,464 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:56:40,465 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da84b0bfdfce2fad5f551c5bc14b33ff3764ad6f4b0c00bd09707e2922ecd646 [2022-12-13 11:56:40,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:56:40,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:56:40,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:56:40,649 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:56:40,649 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:56:40,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2022-12-13 11:56:43,198 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:56:43,369 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:56:43,370 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2022-12-13 11:56:43,376 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/data/796a89c89/4014f28c8d6c4b978ab59641f978af19/FLAGa3a37de6f [2022-12-13 11:56:43,767 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/data/796a89c89/4014f28c8d6c4b978ab59641f978af19 [2022-12-13 11:56:43,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:56:43,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:56:43,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:56:43,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:56:43,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:56:43,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:56:43" (1/1) ... [2022-12-13 11:56:43,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33af51bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:43, skipping insertion in model container [2022-12-13 11:56:43,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:56:43" (1/1) ... [2022-12-13 11:56:43,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:56:43,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:56:43,888 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_80002250-6e0b-48a3-a81c-56d06b6c07df/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c[816,829] [2022-12-13 11:56:43,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:56:43,926 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:56:43,934 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_80002250-6e0b-48a3-a81c-56d06b6c07df/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c[816,829] [2022-12-13 11:56:43,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:56:43,964 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:56:43,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:43 WrapperNode [2022-12-13 11:56:43,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:56:43,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:56:43,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:56:43,965 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:56:43,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:43" (1/1) ... [2022-12-13 11:56:43,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:43" (1/1) ... [2022-12-13 11:56:43,995 INFO L138 Inliner]: procedures = 18, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 167 [2022-12-13 11:56:43,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:56:43,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:56:43,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:56:43,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:56:44,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:43" (1/1) ... [2022-12-13 11:56:44,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:43" (1/1) ... [2022-12-13 11:56:44,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:43" (1/1) ... [2022-12-13 11:56:44,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:43" (1/1) ... [2022-12-13 11:56:44,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:43" (1/1) ... [2022-12-13 11:56:44,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:43" (1/1) ... [2022-12-13 11:56:44,013 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:43" (1/1) ... [2022-12-13 11:56:44,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:43" (1/1) ... [2022-12-13 11:56:44,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:56:44,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:56:44,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:56:44,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:56:44,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:43" (1/1) ... [2022-12-13 11:56:44,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:56:44,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:56:44,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:56:44,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:56:44,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:56:44,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:56:44,065 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-12-13 11:56:44,065 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-12-13 11:56:44,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:56:44,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:56:44,066 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2022-12-13 11:56:44,066 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2022-12-13 11:56:44,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 11:56:44,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 11:56:44,128 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:56:44,130 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:56:44,422 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:56:44,427 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:56:44,427 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 11:56:44,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:56:44 BoogieIcfgContainer [2022-12-13 11:56:44,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:56:44,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:56:44,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:56:44,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:56:44,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:56:43" (1/3) ... [2022-12-13 11:56:44,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cdadc6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:56:44, skipping insertion in model container [2022-12-13 11:56:44,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:43" (2/3) ... [2022-12-13 11:56:44,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cdadc6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:56:44, skipping insertion in model container [2022-12-13 11:56:44,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:56:44" (3/3) ... [2022-12-13 11:56:44,435 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_4-2.c.cil.c [2022-12-13 11:56:44,449 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:56:44,449 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-12-13 11:56:44,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:56:44,489 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=PETRI_NET, 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;@63ad7ee4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:56:44,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-13 11:56:44,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 84 states have (on average 1.6785714285714286) internal successors, (141), 106 states have internal predecessors, (141), 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) [2022-12-13 11:56:44,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 11:56:44,498 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:44,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:44,499 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-13 11:56:44,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:44,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1373570585, now seen corresponding path program 1 times [2022-12-13 11:56:44,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:44,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217671817] [2022-12-13 11:56:44,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:44,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:44,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:44,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:44,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217671817] [2022-12-13 11:56:44,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217671817] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:44,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:44,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:56:44,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601080622] [2022-12-13 11:56:44,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:44,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:56:44,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:44,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:56:44,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:56:44,711 INFO L87 Difference]: Start difference. First operand has 118 states, 84 states have (on average 1.6785714285714286) internal successors, (141), 106 states have internal predecessors, (141), 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 4 states, 3 states have (on average 2.6666666666666665) 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) [2022-12-13 11:56:44,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:44,807 INFO L93 Difference]: Finished difference Result 288 states and 405 transitions. [2022-12-13 11:56:44,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:56:44,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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 [2022-12-13 11:56:44,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:44,816 INFO L225 Difference]: With dead ends: 288 [2022-12-13 11:56:44,816 INFO L226 Difference]: Without dead ends: 163 [2022-12-13 11:56:44,819 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 [2022-12-13 11:56:44,821 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 87 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:44,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 397 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:56:44,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-12-13 11:56:44,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 150. [2022-12-13 11:56:44,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 119 states have (on average 1.5630252100840336) internal successors, (186), 139 states have internal predecessors, (186), 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) [2022-12-13 11:56:44,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 199 transitions. [2022-12-13 11:56:44,857 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 199 transitions. Word has length 9 [2022-12-13 11:56:44,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:44,857 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 199 transitions. [2022-12-13 11:56:44,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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) [2022-12-13 11:56:44,857 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 199 transitions. [2022-12-13 11:56:44,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 11:56:44,858 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:44,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:44,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:56:44,859 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-13 11:56:44,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:44,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1711076775, now seen corresponding path program 1 times [2022-12-13 11:56:44,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:44,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903296551] [2022-12-13 11:56:44,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:44,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:44,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:44,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:44,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903296551] [2022-12-13 11:56:44,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903296551] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:44,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:44,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:56:44,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771914111] [2022-12-13 11:56:44,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:44,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:56:44,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:44,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:56:44,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:56:44,935 INFO L87 Difference]: Start difference. First operand 150 states and 199 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (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) [2022-12-13 11:56:45,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:45,053 INFO L93 Difference]: Finished difference Result 291 states and 372 transitions. [2022-12-13 11:56:45,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:56:45,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-13 11:56:45,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:45,055 INFO L225 Difference]: With dead ends: 291 [2022-12-13 11:56:45,055 INFO L226 Difference]: Without dead ends: 184 [2022-12-13 11:56:45,056 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 [2022-12-13 11:56:45,057 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 140 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:45,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 481 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:56:45,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-12-13 11:56:45,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 164. [2022-12-13 11:56:45,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 133 states have (on average 1.5413533834586466) internal successors, (205), 153 states have internal predecessors, (205), 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) [2022-12-13 11:56:45,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 218 transitions. [2022-12-13 11:56:45,073 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 218 transitions. Word has length 14 [2022-12-13 11:56:45,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:45,074 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 218 transitions. [2022-12-13 11:56:45,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (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) [2022-12-13 11:56:45,074 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 218 transitions. [2022-12-13 11:56:45,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 11:56:45,075 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:45,075 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:45,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:56:45,076 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-13 11:56:45,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:45,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1070009216, now seen corresponding path program 1 times [2022-12-13 11:56:45,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:45,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256917257] [2022-12-13 11:56:45,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:45,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:45,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:56:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:45,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 11:56:45,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:45,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256917257] [2022-12-13 11:56:45,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256917257] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:45,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:45,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:56:45,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138382269] [2022-12-13 11:56:45,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:45,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:56:45,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:45,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:56:45,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:56:45,122 INFO L87 Difference]: Start difference. First operand 164 states and 218 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) [2022-12-13 11:56:45,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:45,155 INFO L93 Difference]: Finished difference Result 170 states and 225 transitions. [2022-12-13 11:56:45,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:56:45,155 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 [2022-12-13 11:56:45,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:45,157 INFO L225 Difference]: With dead ends: 170 [2022-12-13 11:56:45,157 INFO L226 Difference]: Without dead ends: 169 [2022-12-13 11:56:45,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:56:45,159 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 4 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:45,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 245 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:56:45,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-12-13 11:56:45,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 162. [2022-12-13 11:56:45,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 132 states have (on average 1.5303030303030303) internal successors, (202), 151 states have internal predecessors, (202), 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) [2022-12-13 11:56:45,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 215 transitions. [2022-12-13 11:56:45,172 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 215 transitions. Word has length 16 [2022-12-13 11:56:45,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:45,173 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 215 transitions. [2022-12-13 11:56:45,173 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) [2022-12-13 11:56:45,173 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 215 transitions. [2022-12-13 11:56:45,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 11:56:45,174 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:45,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:45,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:56:45,174 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-13 11:56:45,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:45,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1151698491, now seen corresponding path program 1 times [2022-12-13 11:56:45,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:45,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561891142] [2022-12-13 11:56:45,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:45,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:45,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:45,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:45,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561891142] [2022-12-13 11:56:45,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561891142] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:45,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:45,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:56:45,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501817884] [2022-12-13 11:56:45,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:45,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:56:45,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:45,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:56:45,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:56:45,256 INFO L87 Difference]: Start difference. First operand 162 states and 215 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (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) [2022-12-13 11:56:45,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:45,296 INFO L93 Difference]: Finished difference Result 267 states and 347 transitions. [2022-12-13 11:56:45,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:56:45,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (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 15 [2022-12-13 11:56:45,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:45,298 INFO L225 Difference]: With dead ends: 267 [2022-12-13 11:56:45,298 INFO L226 Difference]: Without dead ends: 110 [2022-12-13 11:56:45,299 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 [2022-12-13 11:56:45,300 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 7 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:45,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 370 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:56:45,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-12-13 11:56:45,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2022-12-13 11:56:45,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 80 states have (on average 1.55) internal successors, (124), 99 states have internal predecessors, (124), 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) [2022-12-13 11:56:45,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 137 transitions. [2022-12-13 11:56:45,307 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 137 transitions. Word has length 15 [2022-12-13 11:56:45,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:45,308 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 137 transitions. [2022-12-13 11:56:45,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (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) [2022-12-13 11:56:45,308 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 137 transitions. [2022-12-13 11:56:45,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 11:56:45,309 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:45,309 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:45,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 11:56:45,309 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-13 11:56:45,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:45,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1218080085, now seen corresponding path program 1 times [2022-12-13 11:56:45,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:45,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782211932] [2022-12-13 11:56:45,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:45,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:45,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:56:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:45,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:45,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:45,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782211932] [2022-12-13 11:56:45,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782211932] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:45,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:45,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:56:45,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023639626] [2022-12-13 11:56:45,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:45,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:56:45,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:45,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:56:45,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:56:45,363 INFO L87 Difference]: Start difference. First operand 110 states and 137 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (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) [2022-12-13 11:56:45,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:45,444 INFO L93 Difference]: Finished difference Result 160 states and 201 transitions. [2022-12-13 11:56:45,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:56:45,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-12-13 11:56:45,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:45,446 INFO L225 Difference]: With dead ends: 160 [2022-12-13 11:56:45,446 INFO L226 Difference]: Without dead ends: 156 [2022-12-13 11:56:45,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:56:45,447 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 101 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:45,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 434 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:56:45,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-12-13 11:56:45,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 142. [2022-12-13 11:56:45,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 112 states have (on average 1.5535714285714286) internal successors, (174), 130 states have internal predecessors, (174), 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) [2022-12-13 11:56:45,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 187 transitions. [2022-12-13 11:56:45,454 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 187 transitions. Word has length 17 [2022-12-13 11:56:45,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:45,454 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 187 transitions. [2022-12-13 11:56:45,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (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) [2022-12-13 11:56:45,455 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 187 transitions. [2022-12-13 11:56:45,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 11:56:45,455 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:45,455 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:45,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 11:56:45,456 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-13 11:56:45,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:45,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1189452729, now seen corresponding path program 1 times [2022-12-13 11:56:45,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:45,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609150784] [2022-12-13 11:56:45,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:45,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:45,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:56:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:45,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:45,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:45,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609150784] [2022-12-13 11:56:45,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609150784] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:45,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:45,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:56:45,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71831631] [2022-12-13 11:56:45,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:45,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:56:45,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:45,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:56:45,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:56:45,494 INFO L87 Difference]: Start difference. First operand 142 states and 187 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (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) [2022-12-13 11:56:45,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:45,562 INFO L93 Difference]: Finished difference Result 166 states and 210 transitions. [2022-12-13 11:56:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:56:45,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-12-13 11:56:45,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:45,564 INFO L225 Difference]: With dead ends: 166 [2022-12-13 11:56:45,564 INFO L226 Difference]: Without dead ends: 163 [2022-12-13 11:56:45,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:56:45,565 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 101 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:45,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 434 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:56:45,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-12-13 11:56:45,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 148. [2022-12-13 11:56:45,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 119 states have (on average 1.5126050420168067) internal successors, (180), 136 states have internal predecessors, (180), 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) [2022-12-13 11:56:45,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 193 transitions. [2022-12-13 11:56:45,571 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 193 transitions. Word has length 17 [2022-12-13 11:56:45,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:45,571 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 193 transitions. [2022-12-13 11:56:45,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (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) [2022-12-13 11:56:45,572 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 193 transitions. [2022-12-13 11:56:45,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 11:56:45,572 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:45,572 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] [2022-12-13 11:56:45,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 11:56:45,572 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-13 11:56:45,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:45,573 INFO L85 PathProgramCache]: Analyzing trace with hash -554907808, now seen corresponding path program 1 times [2022-12-13 11:56:45,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:45,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066569294] [2022-12-13 11:56:45,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:45,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:45,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:56:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:45,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 11:56:45,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:45,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066569294] [2022-12-13 11:56:45,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066569294] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:45,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:45,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:56:45,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567124175] [2022-12-13 11:56:45,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:45,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:56:45,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:45,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:56:45,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:56:45,601 INFO L87 Difference]: Start difference. First operand 148 states and 193 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-12-13 11:56:45,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:45,636 INFO L93 Difference]: Finished difference Result 174 states and 224 transitions. [2022-12-13 11:56:45,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:56:45,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 21 [2022-12-13 11:56:45,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:45,637 INFO L225 Difference]: With dead ends: 174 [2022-12-13 11:56:45,637 INFO L226 Difference]: Without dead ends: 172 [2022-12-13 11:56:45,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:56:45,638 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 25 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:45,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 249 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:56:45,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-12-13 11:56:45,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 148. [2022-12-13 11:56:45,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 119 states have (on average 1.504201680672269) internal successors, (179), 136 states have internal predecessors, (179), 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) [2022-12-13 11:56:45,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 192 transitions. [2022-12-13 11:56:45,644 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 192 transitions. Word has length 21 [2022-12-13 11:56:45,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:45,644 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 192 transitions. [2022-12-13 11:56:45,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-12-13 11:56:45,644 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 192 transitions. [2022-12-13 11:56:45,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 11:56:45,645 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:45,645 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, 1] [2022-12-13 11:56:45,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 11:56:45,645 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-13 11:56:45,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:45,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1661769196, now seen corresponding path program 1 times [2022-12-13 11:56:45,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:45,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250930196] [2022-12-13 11:56:45,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:45,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:56:45,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:56:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:56:45,670 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:56:45,670 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:56:45,670 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2022-12-13 11:56:45,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2022-12-13 11:56:45,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2022-12-13 11:56:45,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2022-12-13 11:56:45,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2022-12-13 11:56:45,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2022-12-13 11:56:45,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2022-12-13 11:56:45,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2022-12-13 11:56:45,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2022-12-13 11:56:45,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2022-12-13 11:56:45,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2022-12-13 11:56:45,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2022-12-13 11:56:45,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2022-12-13 11:56:45,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2022-12-13 11:56:45,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2022-12-13 11:56:45,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2022-12-13 11:56:45,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2022-12-13 11:56:45,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2022-12-13 11:56:45,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2022-12-13 11:56:45,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2022-12-13 11:56:45,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2022-12-13 11:56:45,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2022-12-13 11:56:45,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 11:56:45,677 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:45,680 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:56:45,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:56:45 BoogieIcfgContainer [2022-12-13 11:56:45,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:56:45,696 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:56:45,696 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:56:45,696 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:56:45,697 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:56:44" (3/4) ... [2022-12-13 11:56:45,700 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:56:45,700 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:56:45,701 INFO L158 Benchmark]: Toolchain (without parser) took 1929.49ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 99.8MB in the beginning and 93.3MB in the end (delta: 6.5MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2022-12-13 11:56:45,701 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 136.3MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:56:45,701 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.93ms. Allocated memory is still 136.3MB. Free memory was 99.8MB in the beginning and 86.2MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 11:56:45,701 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.99ms. Allocated memory is still 136.3MB. Free memory was 86.2MB in the beginning and 83.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:56:45,702 INFO L158 Benchmark]: Boogie Preprocessor took 20.30ms. Allocated memory is still 136.3MB. Free memory was 83.6MB in the beginning and 82.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:56:45,702 INFO L158 Benchmark]: RCFGBuilder took 412.69ms. Allocated memory is still 136.3MB. Free memory was 82.1MB in the beginning and 61.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 11:56:45,702 INFO L158 Benchmark]: TraceAbstraction took 1265.15ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 60.5MB in the beginning and 93.3MB in the end (delta: -32.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:56:45,703 INFO L158 Benchmark]: Witness Printer took 3.76ms. Allocated memory is still 163.6MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:56:45,704 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 136.3MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 192.93ms. Allocated memory is still 136.3MB. Free memory was 99.8MB in the beginning and 86.2MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.99ms. Allocated memory is still 136.3MB. Free memory was 86.2MB in the beginning and 83.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.30ms. Allocated memory is still 136.3MB. Free memory was 83.6MB in the beginning and 82.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 412.69ms. Allocated memory is still 136.3MB. Free memory was 82.1MB in the beginning and 61.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1265.15ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 60.5MB in the beginning and 93.3MB in the end (delta: -32.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.76ms. Allocated memory is still 163.6MB. Free memory is still 93.3MB. 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. 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); 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, 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, 118 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 473 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 465 mSDsluCounter, 2610 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1741 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 379 IncrementalHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 869 mSDtfsCounter, 379 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=2, InterpolantAutomatonStates: 33, 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, 7 MinimizatonAttempts, 93 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 238 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 [2022-12-13 11:56:45,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8 --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 Automizer --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 [2022-12-13 11:56:47,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:56:47,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:56:47,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:56:47,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:56:47,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:56:47,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:56:47,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:56:47,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:56:47,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:56:47,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:56:47,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:56:47,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:56:47,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:56:47,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:56:47,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:56:47,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:56:47,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:56:47,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:56:47,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:56:47,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:56:47,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:56:47,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:56:47,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:56:47,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:56:47,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:56:47,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:56:47,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:56:47,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:56:47,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:56:47,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:56:47,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:56:47,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:56:47,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:56:47,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:56:47,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:56:47,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:56:47,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:56:47,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:56:47,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:56:47,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:56:47,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2022-12-13 11:56:47,448 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:56:47,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:56:47,449 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:56:47,449 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:56:47,450 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:56:47,450 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:56:47,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:56:47,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:56:47,451 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:56:47,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:56:47,451 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:56:47,451 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:56:47,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:56:47,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:56:47,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:56:47,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:56:47,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:56:47,452 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:56:47,452 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 11:56:47,452 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:56:47,452 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 11:56:47,452 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:56:47,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:56:47,453 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:56:47,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:56:47,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:56:47,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:56:47,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:56:47,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:56:47,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:56:47,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:56:47,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:56:47,454 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 11:56:47,454 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 11:56:47,454 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:56:47,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:56:47,454 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:56:47,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:56:47,455 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 11:56:47,455 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:56:47,455 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da84b0bfdfce2fad5f551c5bc14b33ff3764ad6f4b0c00bd09707e2922ecd646 [2022-12-13 11:56:47,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:56:47,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:56:47,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:56:47,706 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:56:47,706 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:56:47,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2022-12-13 11:56:50,220 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:56:50,376 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:56:50,377 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2022-12-13 11:56:50,384 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/data/fb01d3436/6e634075b0164b6cbc559a4b47f3df78/FLAGa826bdbcc [2022-12-13 11:56:50,773 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/data/fb01d3436/6e634075b0164b6cbc559a4b47f3df78 [2022-12-13 11:56:50,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:56:50,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:56:50,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:56:50,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:56:50,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:56:50,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:56:50" (1/1) ... [2022-12-13 11:56:50,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc0486c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:50, skipping insertion in model container [2022-12-13 11:56:50,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:56:50" (1/1) ... [2022-12-13 11:56:50,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:56:50,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:56:50,902 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_80002250-6e0b-48a3-a81c-56d06b6c07df/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c[816,829] [2022-12-13 11:56:50,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:56:50,945 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:56:50,953 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_80002250-6e0b-48a3-a81c-56d06b6c07df/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c[816,829] [2022-12-13 11:56:50,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:56:50,981 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:56:50,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:50 WrapperNode [2022-12-13 11:56:50,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:56:50,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:56:50,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:56:50,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:56:50,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:50" (1/1) ... [2022-12-13 11:56:50,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:50" (1/1) ... [2022-12-13 11:56:51,010 INFO L138 Inliner]: procedures = 18, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2022-12-13 11:56:51,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:56:51,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:56:51,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:56:51,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:56:51,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:50" (1/1) ... [2022-12-13 11:56:51,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:50" (1/1) ... [2022-12-13 11:56:51,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:50" (1/1) ... [2022-12-13 11:56:51,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:50" (1/1) ... [2022-12-13 11:56:51,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:50" (1/1) ... [2022-12-13 11:56:51,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:50" (1/1) ... [2022-12-13 11:56:51,032 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:50" (1/1) ... [2022-12-13 11:56:51,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:50" (1/1) ... [2022-12-13 11:56:51,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:56:51,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:56:51,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:56:51,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:56:51,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:50" (1/1) ... [2022-12-13 11:56:51,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:56:51,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:56:51,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:56:51,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:56:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:56:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 11:56:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-12-13 11:56:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-12-13 11:56:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:56:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:56:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2022-12-13 11:56:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2022-12-13 11:56:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 11:56:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 11:56:51,154 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:56:51,155 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:56:51,387 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:56:51,392 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:56:51,392 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 11:56:51,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:56:51 BoogieIcfgContainer [2022-12-13 11:56:51,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:56:51,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:56:51,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:56:51,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:56:51,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:56:50" (1/3) ... [2022-12-13 11:56:51,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f9f78d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:56:51, skipping insertion in model container [2022-12-13 11:56:51,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:50" (2/3) ... [2022-12-13 11:56:51,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f9f78d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:56:51, skipping insertion in model container [2022-12-13 11:56:51,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:56:51" (3/3) ... [2022-12-13 11:56:51,400 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_4-2.c.cil.c [2022-12-13 11:56:51,414 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:56:51,414 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-12-13 11:56:51,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:56:51,460 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=PETRI_NET, 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;@690eed4b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:56:51,460 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-13 11:56:51,464 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) [2022-12-13 11:56:51,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 11:56:51,471 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:51,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:51,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-13 11:56:51,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:51,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1706781765, now seen corresponding path program 1 times [2022-12-13 11:56:51,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:56:51,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18159580] [2022-12-13 11:56:51,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:51,488 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 [2022-12-13 11:56:51,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:56:51,490 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 11:56:51,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:51,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 11:56:51,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:56:51,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:51,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:56:51,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:56:51,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18159580] [2022-12-13 11:56:51,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18159580] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:51,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:51,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:56:51,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559110002] [2022-12-13 11:56:51,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:51,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 11:56:51,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:56:51,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 11:56:51,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:56:51,617 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) [2022-12-13 11:56:51,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:51,651 INFO L93 Difference]: Finished difference Result 180 states and 242 transitions. [2022-12-13 11:56:51,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 11:56:51,653 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 [2022-12-13 11:56:51,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:51,661 INFO L225 Difference]: With dead ends: 180 [2022-12-13 11:56:51,661 INFO L226 Difference]: Without dead ends: 77 [2022-12-13 11:56:51,665 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 [2022-12-13 11:56:51,668 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 [2022-12-13 11:56:51,669 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] [2022-12-13 11:56:51,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-12-13 11:56:51,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-12-13 11:56:51,698 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) [2022-12-13 11:56:51,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2022-12-13 11:56:51,701 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 9 [2022-12-13 11:56:51,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:51,701 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2022-12-13 11:56:51,701 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) [2022-12-13 11:56:51,702 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2022-12-13 11:56:51,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 11:56:51,702 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:51,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:51,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:51,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:51,903 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-13 11:56:51,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:51,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1707723031, now seen corresponding path program 1 times [2022-12-13 11:56:51,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:56:51,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777788653] [2022-12-13 11:56:51,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:51,905 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 [2022-12-13 11:56:51,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:56:51,906 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 11:56:51,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:51,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:56:51,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:56:51,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:51,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:56:51,962 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:56:51,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777788653] [2022-12-13 11:56:51,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777788653] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:51,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:51,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:56:51,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931198535] [2022-12-13 11:56:51,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:51,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:56:51,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:56:51,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:56:51,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:56:51,966 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) [2022-12-13 11:56:52,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:52,019 INFO L93 Difference]: Finished difference Result 159 states and 188 transitions. [2022-12-13 11:56:52,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:56:52,020 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 [2022-12-13 11:56:52,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:52,022 INFO L225 Difference]: With dead ends: 159 [2022-12-13 11:56:52,022 INFO L226 Difference]: Without dead ends: 85 [2022-12-13 11:56:52,023 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 [2022-12-13 11:56:52,024 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 [2022-12-13 11:56:52,024 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] [2022-12-13 11:56:52,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-12-13 11:56:52,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2022-12-13 11:56:52,031 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) [2022-12-13 11:56:52,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 95 transitions. [2022-12-13 11:56:52,032 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 95 transitions. Word has length 9 [2022-12-13 11:56:52,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:52,032 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 95 transitions. [2022-12-13 11:56:52,033 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) [2022-12-13 11:56:52,033 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 95 transitions. [2022-12-13 11:56:52,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 11:56:52,033 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:52,033 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:52,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:52,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:52,235 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-13 11:56:52,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:52,238 INFO L85 PathProgramCache]: Analyzing trace with hash -202593319, now seen corresponding path program 1 times [2022-12-13 11:56:52,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:56:52,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543644618] [2022-12-13 11:56:52,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:52,241 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 [2022-12-13 11:56:52,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:56:52,244 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 11:56:52,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:52,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 11:56:52,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:56:52,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 11:56:52,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:56:52,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:56:52,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543644618] [2022-12-13 11:56:52,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543644618] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:52,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:52,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:56:52,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539371502] [2022-12-13 11:56:52,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:52,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:56:52,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:56:52,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:56:52,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:56:52,429 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) [2022-12-13 11:56:52,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:52,473 INFO L93 Difference]: Finished difference Result 85 states and 99 transitions. [2022-12-13 11:56:52,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:56:52,474 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 [2022-12-13 11:56:52,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:52,475 INFO L225 Difference]: With dead ends: 85 [2022-12-13 11:56:52,475 INFO L226 Difference]: Without dead ends: 84 [2022-12-13 11:56:52,476 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 [2022-12-13 11:56:52,477 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 [2022-12-13 11:56:52,478 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] [2022-12-13 11:56:52,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-12-13 11:56:52,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2022-12-13 11:56:52,486 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) [2022-12-13 11:56:52,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 94 transitions. [2022-12-13 11:56:52,488 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 94 transitions. Word has length 16 [2022-12-13 11:56:52,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:52,489 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 94 transitions. [2022-12-13 11:56:52,489 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) [2022-12-13 11:56:52,489 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 94 transitions. [2022-12-13 11:56:52,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 11:56:52,490 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:52,490 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:52,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:52,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:52,692 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-13 11:56:52,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:52,695 INFO L85 PathProgramCache]: Analyzing trace with hash -531201343, now seen corresponding path program 1 times [2022-12-13 11:56:52,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:56:52,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118375916] [2022-12-13 11:56:52,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:52,699 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 [2022-12-13 11:56:52,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:56:52,703 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 11:56:52,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:52,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 11:56:52,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:56:52,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 11:56:52,848 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:56:52,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:56:52,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118375916] [2022-12-13 11:56:52,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118375916] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:52,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:52,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:56:52,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413463204] [2022-12-13 11:56:52,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:52,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:56:52,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:56:52,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:56:52,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:56:52,851 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) [2022-12-13 11:56:52,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:52,886 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2022-12-13 11:56:52,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:56:52,887 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 [2022-12-13 11:56:52,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:52,887 INFO L225 Difference]: With dead ends: 84 [2022-12-13 11:56:52,887 INFO L226 Difference]: Without dead ends: 83 [2022-12-13 11:56:52,888 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 [2022-12-13 11:56:52,888 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 [2022-12-13 11:56:52,889 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] [2022-12-13 11:56:52,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-12-13 11:56:52,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2022-12-13 11:56:52,894 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) [2022-12-13 11:56:52,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 93 transitions. [2022-12-13 11:56:52,895 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 93 transitions. Word has length 18 [2022-12-13 11:56:52,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:52,895 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 93 transitions. [2022-12-13 11:56:52,895 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) [2022-12-13 11:56:52,895 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 93 transitions. [2022-12-13 11:56:52,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 11:56:52,895 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:52,896 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:52,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:53,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:53,098 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-13 11:56:53,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:53,099 INFO L85 PathProgramCache]: Analyzing trace with hash -531133817, now seen corresponding path program 1 times [2022-12-13 11:56:53,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:56:53,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543505656] [2022-12-13 11:56:53,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:53,102 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 [2022-12-13 11:56:53,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:56:53,105 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 11:56:53,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:53,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:56:53,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:56:53,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:53,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:56:53,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:56:53,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543505656] [2022-12-13 11:56:53,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543505656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:53,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:53,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:56:53,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184659550] [2022-12-13 11:56:53,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:53,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:56:53,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:56:53,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:56:53,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:56:53,243 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) [2022-12-13 11:56:53,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:53,715 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2022-12-13 11:56:53,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:56:53,716 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 [2022-12-13 11:56:53,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:53,717 INFO L225 Difference]: With dead ends: 102 [2022-12-13 11:56:53,717 INFO L226 Difference]: Without dead ends: 99 [2022-12-13 11:56:53,717 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 [2022-12-13 11:56:53,718 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, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:53,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 187 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 11:56:53,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-12-13 11:56:53,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2022-12-13 11:56:53,728 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) [2022-12-13 11:56:53,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 101 transitions. [2022-12-13 11:56:53,729 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 101 transitions. Word has length 18 [2022-12-13 11:56:53,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:53,729 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 101 transitions. [2022-12-13 11:56:53,729 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) [2022-12-13 11:56:53,729 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 101 transitions. [2022-12-13 11:56:53,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 11:56:53,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:53,730 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] [2022-12-13 11:56:53,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:53,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:53,931 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-13 11:56:53,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:53,933 INFO L85 PathProgramCache]: Analyzing trace with hash -347921438, now seen corresponding path program 1 times [2022-12-13 11:56:53,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:56:53,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489441260] [2022-12-13 11:56:53,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:53,935 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 [2022-12-13 11:56:53,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:56:53,938 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 11:56:53,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:56:53,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:56:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:56:53,999 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 11:56:53,999 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:56:54,000 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2022-12-13 11:56:54,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2022-12-13 11:56:54,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2022-12-13 11:56:54,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2022-12-13 11:56:54,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2022-12-13 11:56:54,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2022-12-13 11:56:54,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2022-12-13 11:56:54,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2022-12-13 11:56:54,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2022-12-13 11:56:54,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2022-12-13 11:56:54,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2022-12-13 11:56:54,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2022-12-13 11:56:54,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2022-12-13 11:56:54,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2022-12-13 11:56:54,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2022-12-13 11:56:54,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2022-12-13 11:56:54,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2022-12-13 11:56:54,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2022-12-13 11:56:54,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2022-12-13 11:56:54,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2022-12-13 11:56:54,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2022-12-13 11:56:54,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2022-12-13 11:56:54,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:54,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:56:54,211 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-13 11:56:54,217 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:56:54,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:56:54 BoogieIcfgContainer [2022-12-13 11:56:54,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:56:54,255 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:56:54,255 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:56:54,255 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:56:54,256 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:56:51" (3/4) ... [2022-12-13 11:56:54,257 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 11:56:54,283 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 11:56:54,283 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:56:54,283 INFO L158 Benchmark]: Toolchain (without parser) took 3501.55ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 49.1MB in the beginning and 46.1MB in the end (delta: 3.0MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2022-12-13 11:56:54,283 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 50.3MB. Free memory was 28.8MB in the beginning and 28.7MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:56:54,284 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.42ms. Allocated memory is still 67.1MB. Free memory was 48.9MB in the beginning and 35.2MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 11:56:54,284 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.18ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 33.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:56:54,284 INFO L158 Benchmark]: Boogie Preprocessor took 25.99ms. Allocated memory is still 67.1MB. Free memory was 33.4MB in the beginning and 31.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:56:54,284 INFO L158 Benchmark]: RCFGBuilder took 356.50ms. Allocated memory is still 67.1MB. Free memory was 31.6MB in the beginning and 32.2MB in the end (delta: -614.3kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 11:56:54,284 INFO L158 Benchmark]: TraceAbstraction took 2859.11ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 31.7MB in the beginning and 48.3MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:56:54,285 INFO L158 Benchmark]: Witness Printer took 28.11ms. Allocated memory is still 81.8MB. Free memory was 48.3MB in the beginning and 46.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:56:54,286 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 50.3MB. Free memory was 28.8MB in the beginning and 28.7MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.42ms. Allocated memory is still 67.1MB. Free memory was 48.9MB in the beginning and 35.2MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.18ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 33.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.99ms. Allocated memory is still 67.1MB. Free memory was 33.4MB in the beginning and 31.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 356.50ms. Allocated memory is still 67.1MB. Free memory was 31.6MB in the beginning and 32.2MB in the end (delta: -614.3kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2859.11ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 31.7MB in the beginning and 48.3MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 28.11ms. Allocated memory is still 81.8MB. Free memory was 48.3MB in the beginning and 46.1MB 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, 0.0s 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! [2022-12-13 11:56:54,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80002250-6e0b-48a3-a81c-56d06b6c07df/bin/uautomizer-uyxdKDjOR8/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)