./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_3.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_3.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R --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 aa6f3ffe66f40e883b6b9462d3d92566e122af5c88e351ce665cbb8a404d0554 --- 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-38b53e6 [2022-11-25 18:12:10,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:12:10,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:12:10,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:12:10,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:12:10,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:12:10,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:12:10,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:12:10,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:12:10,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:12:10,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:12:10,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:12:10,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:12:10,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:12:10,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:12:10,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:12:10,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:12:10,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:12:10,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:12:10,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:12:10,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:12:10,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:12:10,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:12:10,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:12:10,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:12:10,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:12:10,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:12:10,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:12:10,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:12:10,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:12:10,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:12:10,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:12:10,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:12:10,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:12:10,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:12:10,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:12:10,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:12:10,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:12:10,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:12:10,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:12:10,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:12:10,889 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 18:12:10,918 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:12:10,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:12:10,919 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:12:10,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:12:10,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:12:10,921 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:12:10,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:12:10,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:12:10,922 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:12:10,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:12:10,924 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:12:10,924 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:12:10,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:12:10,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:12:10,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:12:10,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:12:10,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:12:10,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:12:10,926 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:12:10,926 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:12:10,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:12:10,927 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:12:10,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:12:10,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:12:10,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:12:10,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:12:10,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:12:10,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:12:10,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:12:10,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:12:10,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:12:10,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:12:10,930 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:12:10,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:12:10,931 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:12:10,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:12:10,931 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_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa6f3ffe66f40e883b6b9462d3d92566e122af5c88e351ce665cbb8a404d0554 [2022-11-25 18:12:11,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:12:11,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:12:11,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:12:11,298 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:12:11,299 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:12:11,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/bitvector/soft_float_3.c.cil.c [2022-11-25 18:12:14,395 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:12:14,583 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:12:14,583 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/sv-benchmarks/c/bitvector/soft_float_3.c.cil.c [2022-11-25 18:12:14,591 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/data/98e2d5423/77c7c5068c3f45ae93ee7232e7047e70/FLAG1c0fa27a8 [2022-11-25 18:12:14,610 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/data/98e2d5423/77c7c5068c3f45ae93ee7232e7047e70 [2022-11-25 18:12:14,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:12:14,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:12:14,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:12:14,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:12:14,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:12:14,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:12:14" (1/1) ... [2022-11-25 18:12:14,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75d52bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:14, skipping insertion in model container [2022-11-25 18:12:14,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:12:14" (1/1) ... [2022-11-25 18:12:14,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:12:14,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:12:14,808 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_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/sv-benchmarks/c/bitvector/soft_float_3.c.cil.c[727,740] [2022-11-25 18:12:14,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:12:14,876 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:12:14,887 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_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/sv-benchmarks/c/bitvector/soft_float_3.c.cil.c[727,740] [2022-11-25 18:12:14,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:12:14,931 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:12:14,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:14 WrapperNode [2022-11-25 18:12:14,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:12:14,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:12:14,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:12:14,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:12:14,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:14" (1/1) ... [2022-11-25 18:12:14,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:14" (1/1) ... [2022-11-25 18:12:14,978 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 181 [2022-11-25 18:12:14,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:12:14,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:12:14,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:12:14,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:12:14,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:14" (1/1) ... [2022-11-25 18:12:14,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:14" (1/1) ... [2022-11-25 18:12:14,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:14" (1/1) ... [2022-11-25 18:12:14,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:14" (1/1) ... [2022-11-25 18:12:15,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:14" (1/1) ... [2022-11-25 18:12:15,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:14" (1/1) ... [2022-11-25 18:12:15,015 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:14" (1/1) ... [2022-11-25 18:12:15,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:14" (1/1) ... [2022-11-25 18:12:15,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:12:15,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:12:15,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:12:15,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:12:15,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:14" (1/1) ... [2022-11-25 18:12:15,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:12:15,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:12:15,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:12:15,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:12:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:12:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:12:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-25 18:12:15,128 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-25 18:12:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:12:15,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:12:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 18:12:15,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 18:12:15,207 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:12:15,209 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:12:15,777 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:12:15,792 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:12:15,792 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 18:12:15,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:12:15 BoogieIcfgContainer [2022-11-25 18:12:15,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:12:15,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:12:15,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:12:15,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:12:15,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:12:14" (1/3) ... [2022-11-25 18:12:15,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e05cce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:12:15, skipping insertion in model container [2022-11-25 18:12:15,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:12:14" (2/3) ... [2022-11-25 18:12:15,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e05cce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:12:15, skipping insertion in model container [2022-11-25 18:12:15,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:12:15" (3/3) ... [2022-11-25 18:12:15,811 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_3.c.cil.c [2022-11-25 18:12:15,827 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:12:15,828 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-11-25 18:12:15,877 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:12:15,883 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;@6cf194bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:12:15,884 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-25 18:12:15,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 89 states have (on average 1.7078651685393258) internal successors, (152), 114 states have internal predecessors, (152), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 18:12:15,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 18:12:15,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:15,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:15,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:12:15,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:15,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1859144894, now seen corresponding path program 1 times [2022-11-25 18:12:15,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:15,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880133914] [2022-11-25 18:12:15,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:15,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:16,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:12:16,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:16,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880133914] [2022-11-25 18:12:16,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880133914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:12:16,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:12:16,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:12:16,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109834449] [2022-11-25 18:12:16,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:12:16,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:12:16,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:16,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:12:16,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:12:16,249 INFO L87 Difference]: Start difference. First operand has 121 states, 89 states have (on average 1.7078651685393258) internal successors, (152), 114 states have internal predecessors, (152), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 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) [2022-11-25 18:12:16,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:12:16,420 INFO L93 Difference]: Finished difference Result 294 states and 413 transitions. [2022-11-25 18:12:16,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:12:16,424 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 [2022-11-25 18:12:16,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:12:16,434 INFO L225 Difference]: With dead ends: 294 [2022-11-25 18:12:16,434 INFO L226 Difference]: Without dead ends: 154 [2022-11-25 18:12:16,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:12:16,441 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 87 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:12:16,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 409 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:12:16,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-11-25 18:12:16,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 141. [2022-11-25 18:12:16,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 113 states have (on average 1.5575221238938053) internal successors, (176), 134 states have internal predecessors, (176), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:12:16,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 184 transitions. [2022-11-25 18:12:16,511 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 184 transitions. Word has length 9 [2022-11-25 18:12:16,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:16,511 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 184 transitions. [2022-11-25 18:12:16,511 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) [2022-11-25 18:12:16,512 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 184 transitions. [2022-11-25 18:12:16,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 18:12:16,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:16,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:16,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:12:16,514 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:12:16,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:16,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1257825762, now seen corresponding path program 1 times [2022-11-25 18:12:16,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:16,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159546821] [2022-11-25 18:12:16,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:16,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:16,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:12:16,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:16,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159546821] [2022-11-25 18:12:16,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159546821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:12:16,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:12:16,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:12:16,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71665338] [2022-11-25 18:12:16,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:12:16,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:12:16,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:16,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:12:16,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:12:16,647 INFO L87 Difference]: Start difference. First operand 141 states and 184 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) [2022-11-25 18:12:16,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:12:16,844 INFO L93 Difference]: Finished difference Result 313 states and 407 transitions. [2022-11-25 18:12:16,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:12:16,851 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 [2022-11-25 18:12:16,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:12:16,853 INFO L225 Difference]: With dead ends: 313 [2022-11-25 18:12:16,853 INFO L226 Difference]: Without dead ends: 175 [2022-11-25 18:12:16,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:12:16,855 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 140 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:12:16,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 399 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:12:16,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-25 18:12:16,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 155. [2022-11-25 18:12:16,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 127 states have (on average 1.5354330708661417) internal successors, (195), 148 states have internal predecessors, (195), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:12:16,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 203 transitions. [2022-11-25 18:12:16,897 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 203 transitions. Word has length 14 [2022-11-25 18:12:16,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:16,897 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 203 transitions. [2022-11-25 18:12:16,898 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) [2022-11-25 18:12:16,898 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 203 transitions. [2022-11-25 18:12:16,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 18:12:16,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:16,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:16,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:12:16,900 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:12:16,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:16,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1301603374, now seen corresponding path program 1 times [2022-11-25 18:12:16,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:16,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4758826] [2022-11-25 18:12:16,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:16,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:17,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:12:17,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:17,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4758826] [2022-11-25 18:12:17,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4758826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:12:17,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:12:17,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:12:17,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059130029] [2022-11-25 18:12:17,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:12:17,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:12:17,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:17,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:12:17,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:12:17,079 INFO L87 Difference]: Start difference. First operand 155 states and 203 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) [2022-11-25 18:12:17,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:12:17,165 INFO L93 Difference]: Finished difference Result 312 states and 408 transitions. [2022-11-25 18:12:17,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:12:17,167 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 [2022-11-25 18:12:17,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:12:17,168 INFO L225 Difference]: With dead ends: 312 [2022-11-25 18:12:17,171 INFO L226 Difference]: Without dead ends: 160 [2022-11-25 18:12:17,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:12:17,178 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 7 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:12:17,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 327 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:12:17,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-25 18:12:17,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-11-25 18:12:17,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 131 states have (on average 1.5190839694656488) internal successors, (199), 152 states have internal predecessors, (199), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:12:17,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 207 transitions. [2022-11-25 18:12:17,204 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 207 transitions. Word has length 15 [2022-11-25 18:12:17,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:17,205 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 207 transitions. [2022-11-25 18:12:17,205 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) [2022-11-25 18:12:17,205 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 207 transitions. [2022-11-25 18:12:17,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 18:12:17,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:17,211 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:17,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:12:17,212 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:12:17,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:17,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1755668256, now seen corresponding path program 1 times [2022-11-25 18:12:17,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:17,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364854238] [2022-11-25 18:12:17,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:17,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:17,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:12:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:17,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 18:12:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:17,267 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 18:12:17,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:17,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364854238] [2022-11-25 18:12:17,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364854238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:12:17,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:12:17,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:12:17,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792539181] [2022-11-25 18:12:17,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:12:17,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:12:17,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:17,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:12:17,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:12:17,271 INFO L87 Difference]: Start difference. First operand 160 states and 207 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:12:17,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:12:17,308 INFO L93 Difference]: Finished difference Result 166 states and 214 transitions. [2022-11-25 18:12:17,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:12:17,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-11-25 18:12:17,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:12:17,310 INFO L225 Difference]: With dead ends: 166 [2022-11-25 18:12:17,310 INFO L226 Difference]: Without dead ends: 165 [2022-11-25 18:12:17,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:12:17,312 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 4 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 215 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 [2022-11-25 18:12:17,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 215 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:12:17,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-25 18:12:17,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 158. [2022-11-25 18:12:17,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 130 states have (on average 1.5076923076923077) internal successors, (196), 150 states have internal predecessors, (196), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:12:17,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 204 transitions. [2022-11-25 18:12:17,326 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 204 transitions. Word has length 23 [2022-11-25 18:12:17,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:17,326 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 204 transitions. [2022-11-25 18:12:17,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:12:17,327 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 204 transitions. [2022-11-25 18:12:17,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 18:12:17,328 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:17,328 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] [2022-11-25 18:12:17,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:12:17,328 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:12:17,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:17,329 INFO L85 PathProgramCache]: Analyzing trace with hash -319173109, now seen corresponding path program 1 times [2022-11-25 18:12:17,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:17,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078490886] [2022-11-25 18:12:17,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:17,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:17,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:12:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:17,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:12:17,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:17,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078490886] [2022-11-25 18:12:17,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078490886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:12:17,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:12:17,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:12:17,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722969509] [2022-11-25 18:12:17,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:12:17,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:12:17,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:17,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:12:17,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:12:17,473 INFO L87 Difference]: Start difference. First operand 158 states and 204 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:12:17,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:12:17,537 INFO L93 Difference]: Finished difference Result 269 states and 334 transitions. [2022-11-25 18:12:17,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:12:17,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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 22 [2022-11-25 18:12:17,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:12:17,545 INFO L225 Difference]: With dead ends: 269 [2022-11-25 18:12:17,545 INFO L226 Difference]: Without dead ends: 146 [2022-11-25 18:12:17,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:12:17,552 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 41 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:12:17,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 327 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:12:17,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-25 18:12:17,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 140. [2022-11-25 18:12:17,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 112 states have (on average 1.5178571428571428) internal successors, (170), 132 states have internal predecessors, (170), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:12:17,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 178 transitions. [2022-11-25 18:12:17,578 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 178 transitions. Word has length 22 [2022-11-25 18:12:17,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:17,579 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 178 transitions. [2022-11-25 18:12:17,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:12:17,579 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 178 transitions. [2022-11-25 18:12:17,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 18:12:17,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:17,582 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] [2022-11-25 18:12:17,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:12:17,582 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:12:17,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:17,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1320323335, now seen corresponding path program 1 times [2022-11-25 18:12:17,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:17,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901097542] [2022-11-25 18:12:17,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:17,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:17,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:12:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:17,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:12:17,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:17,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901097542] [2022-11-25 18:12:17,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901097542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:12:17,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:12:17,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:12:17,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487870480] [2022-11-25 18:12:17,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:12:17,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:12:17,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:17,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:12:17,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:12:17,682 INFO L87 Difference]: Start difference. First operand 140 states and 178 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:12:17,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:12:17,794 INFO L93 Difference]: Finished difference Result 149 states and 182 transitions. [2022-11-25 18:12:17,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:12:17,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 22 [2022-11-25 18:12:17,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:12:17,796 INFO L225 Difference]: With dead ends: 149 [2022-11-25 18:12:17,796 INFO L226 Difference]: Without dead ends: 146 [2022-11-25 18:12:17,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:12:17,804 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 69 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:12:17,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 398 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:12:17,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-25 18:12:17,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 140. [2022-11-25 18:12:17,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 112 states have (on average 1.4732142857142858) internal successors, (165), 132 states have internal predecessors, (165), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:12:17,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 173 transitions. [2022-11-25 18:12:17,824 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 173 transitions. Word has length 22 [2022-11-25 18:12:17,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:17,825 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 173 transitions. [2022-11-25 18:12:17,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:12:17,826 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 173 transitions. [2022-11-25 18:12:17,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-25 18:12:17,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:17,828 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:17,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:12:17,828 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:12:17,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:17,829 INFO L85 PathProgramCache]: Analyzing trace with hash 807932041, now seen corresponding path program 1 times [2022-11-25 18:12:17,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:17,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927617680] [2022-11-25 18:12:17,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:17,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:17,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:12:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:17,920 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 18:12:17,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:17,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927617680] [2022-11-25 18:12:17,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927617680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:12:17,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:12:17,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:12:17,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182249602] [2022-11-25 18:12:17,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:12:17,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:12:17,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:17,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:12:17,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:12:17,926 INFO L87 Difference]: Start difference. First operand 140 states and 173 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:12:17,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:12:17,979 INFO L93 Difference]: Finished difference Result 161 states and 200 transitions. [2022-11-25 18:12:17,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:12:17,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 26 [2022-11-25 18:12:17,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:12:17,982 INFO L225 Difference]: With dead ends: 161 [2022-11-25 18:12:17,982 INFO L226 Difference]: Without dead ends: 158 [2022-11-25 18:12:17,983 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 [2022-11-25 18:12:17,986 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 24 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:12:17,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 215 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:12:17,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-25 18:12:18,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 145. [2022-11-25 18:12:18,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 118 states have (on average 1.4406779661016949) internal successors, (170), 137 states have internal predecessors, (170), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:12:18,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 178 transitions. [2022-11-25 18:12:18,002 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 178 transitions. Word has length 26 [2022-11-25 18:12:18,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:18,002 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 178 transitions. [2022-11-25 18:12:18,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:12:18,003 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 178 transitions. [2022-11-25 18:12:18,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-25 18:12:18,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:18,008 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:18,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:12:18,009 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:12:18,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:18,010 INFO L85 PathProgramCache]: Analyzing trace with hash 800615145, now seen corresponding path program 1 times [2022-11-25 18:12:18,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:18,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354474971] [2022-11-25 18:12:18,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:18,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:18,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:18,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:12:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:18,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 18:12:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:18,225 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:18,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:18,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354474971] [2022-11-25 18:12:18,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354474971] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:12:18,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162208470] [2022-11-25 18:12:18,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:18,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:12:18,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:12:18,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:12:18,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 18:12:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:18,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 18:12:18,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:12:18,445 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:18,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:12:18,650 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:18,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162208470] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:12:18,651 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:12:18,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2022-11-25 18:12:18,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949182599] [2022-11-25 18:12:18,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:12:18,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 18:12:18,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:18,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 18:12:18,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-11-25 18:12:18,653 INFO L87 Difference]: Start difference. First operand 145 states and 178 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 18:12:19,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:12:19,151 INFO L93 Difference]: Finished difference Result 497 states and 638 transitions. [2022-11-25 18:12:19,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:12:19,152 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2022-11-25 18:12:19,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:12:19,154 INFO L225 Difference]: With dead ends: 497 [2022-11-25 18:12:19,154 INFO L226 Difference]: Without dead ends: 393 [2022-11-25 18:12:19,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=218, Invalid=334, Unknown=0, NotChecked=0, Total=552 [2022-11-25 18:12:19,156 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 355 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:12:19,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 651 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:12:19,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-11-25 18:12:19,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 165. [2022-11-25 18:12:19,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 138 states have (on average 1.4057971014492754) internal successors, (194), 157 states have internal predecessors, (194), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:12:19,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 202 transitions. [2022-11-25 18:12:19,173 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 202 transitions. Word has length 37 [2022-11-25 18:12:19,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:19,174 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 202 transitions. [2022-11-25 18:12:19,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 18:12:19,174 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 202 transitions. [2022-11-25 18:12:19,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-25 18:12:19,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:19,175 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:19,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 18:12:19,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:12:19,381 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:12:19,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:19,382 INFO L85 PathProgramCache]: Analyzing trace with hash -645266335, now seen corresponding path program 1 times [2022-11-25 18:12:19,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:19,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687901741] [2022-11-25 18:12:19,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:19,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:19,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:12:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:19,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 18:12:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:19,456 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 18:12:19,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:19,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687901741] [2022-11-25 18:12:19,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687901741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:12:19,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:12:19,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:12:19,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73684942] [2022-11-25 18:12:19,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:12:19,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:12:19,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:19,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:12:19,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:12:19,459 INFO L87 Difference]: Start difference. First operand 165 states and 202 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:12:19,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:12:19,557 INFO L93 Difference]: Finished difference Result 216 states and 266 transitions. [2022-11-25 18:12:19,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:12:19,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 39 [2022-11-25 18:12:19,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:12:19,559 INFO L225 Difference]: With dead ends: 216 [2022-11-25 18:12:19,560 INFO L226 Difference]: Without dead ends: 213 [2022-11-25 18:12:19,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:12:19,561 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 149 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:12:19,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 326 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:12:19,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-11-25 18:12:19,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 192. [2022-11-25 18:12:19,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 164 states have (on average 1.4268292682926829) internal successors, (234), 183 states have internal predecessors, (234), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:12:19,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 242 transitions. [2022-11-25 18:12:19,574 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 242 transitions. Word has length 39 [2022-11-25 18:12:19,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:19,575 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 242 transitions. [2022-11-25 18:12:19,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:12:19,575 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 242 transitions. [2022-11-25 18:12:19,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-25 18:12:19,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:19,576 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:19,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 18:12:19,576 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:12:19,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:19,577 INFO L85 PathProgramCache]: Analyzing trace with hash -673893691, now seen corresponding path program 1 times [2022-11-25 18:12:19,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:19,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521086862] [2022-11-25 18:12:19,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:19,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:19,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:12:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:19,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 18:12:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:19,638 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 18:12:19,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:19,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521086862] [2022-11-25 18:12:19,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521086862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:12:19,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:12:19,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:12:19,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507581940] [2022-11-25 18:12:19,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:12:19,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:12:19,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:19,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:12:19,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:12:19,641 INFO L87 Difference]: Start difference. First operand 192 states and 242 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:12:19,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:12:19,735 INFO L93 Difference]: Finished difference Result 214 states and 265 transitions. [2022-11-25 18:12:19,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:12:19,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 39 [2022-11-25 18:12:19,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:12:19,737 INFO L225 Difference]: With dead ends: 214 [2022-11-25 18:12:19,737 INFO L226 Difference]: Without dead ends: 211 [2022-11-25 18:12:19,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:12:19,738 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 156 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:12:19,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 314 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:12:19,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-11-25 18:12:19,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 198. [2022-11-25 18:12:19,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 171 states have (on average 1.409356725146199) internal successors, (241), 189 states have internal predecessors, (241), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:12:19,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 249 transitions. [2022-11-25 18:12:19,753 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 249 transitions. Word has length 39 [2022-11-25 18:12:19,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:19,753 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 249 transitions. [2022-11-25 18:12:19,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:12:19,753 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 249 transitions. [2022-11-25 18:12:19,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-25 18:12:19,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:19,754 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:19,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 18:12:19,755 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:12:19,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:19,756 INFO L85 PathProgramCache]: Analyzing trace with hash 161766024, now seen corresponding path program 1 times [2022-11-25 18:12:19,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:19,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864345565] [2022-11-25 18:12:19,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:19,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:19,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:12:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:19,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 18:12:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:19,896 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:19,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:19,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864345565] [2022-11-25 18:12:19,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864345565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:12:19,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:12:19,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:12:19,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952902459] [2022-11-25 18:12:19,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:12:19,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:12:19,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:19,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:12:19,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:12:19,899 INFO L87 Difference]: Start difference. First operand 198 states and 249 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:12:20,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:12:20,009 INFO L93 Difference]: Finished difference Result 424 states and 537 transitions. [2022-11-25 18:12:20,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:12:20,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2022-11-25 18:12:20,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:12:20,012 INFO L225 Difference]: With dead ends: 424 [2022-11-25 18:12:20,012 INFO L226 Difference]: Without dead ends: 281 [2022-11-25 18:12:20,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:12:20,013 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 88 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:12:20,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 214 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:12:20,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-11-25 18:12:20,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 198. [2022-11-25 18:12:20,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 171 states have (on average 1.4035087719298245) internal successors, (240), 189 states have internal predecessors, (240), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:12:20,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 248 transitions. [2022-11-25 18:12:20,034 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 248 transitions. Word has length 44 [2022-11-25 18:12:20,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:20,034 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 248 transitions. [2022-11-25 18:12:20,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:12:20,035 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 248 transitions. [2022-11-25 18:12:20,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-25 18:12:20,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:20,036 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:20,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 18:12:20,036 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:12:20,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:20,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1469984120, now seen corresponding path program 1 times [2022-11-25 18:12:20,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:20,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789593238] [2022-11-25 18:12:20,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:20,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:20,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:12:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:20,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 18:12:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:20,194 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:20,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:20,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789593238] [2022-11-25 18:12:20,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789593238] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:12:20,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566795538] [2022-11-25 18:12:20,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:20,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:12:20,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:12:20,196 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:12:20,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 18:12:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:20,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 18:12:20,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:12:20,364 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:20,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:12:20,520 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:20,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566795538] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:12:20,521 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:12:20,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-11-25 18:12:20,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147327322] [2022-11-25 18:12:20,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:12:20,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 18:12:20,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:20,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 18:12:20,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:12:20,524 INFO L87 Difference]: Start difference. First operand 198 states and 248 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 18:12:21,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:12:21,028 INFO L93 Difference]: Finished difference Result 526 states and 665 transitions. [2022-11-25 18:12:21,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 18:12:21,029 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2022-11-25 18:12:21,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:12:21,031 INFO L225 Difference]: With dead ends: 526 [2022-11-25 18:12:21,031 INFO L226 Difference]: Without dead ends: 369 [2022-11-25 18:12:21,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=186, Unknown=0, NotChecked=0, Total=306 [2022-11-25 18:12:21,033 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 184 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:12:21,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 633 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:12:21,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-11-25 18:12:21,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 188. [2022-11-25 18:12:21,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 161 states have (on average 1.3850931677018634) internal successors, (223), 179 states have internal predecessors, (223), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:12:21,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 231 transitions. [2022-11-25 18:12:21,057 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 231 transitions. Word has length 49 [2022-11-25 18:12:21,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:21,058 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 231 transitions. [2022-11-25 18:12:21,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 18:12:21,058 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 231 transitions. [2022-11-25 18:12:21,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-25 18:12:21,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:21,060 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:21,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 18:12:21,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 18:12:21,266 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:12:21,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:21,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1370409216, now seen corresponding path program 1 times [2022-11-25 18:12:21,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:21,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296683012] [2022-11-25 18:12:21,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:21,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:21,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:12:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:21,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 18:12:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:21,568 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:21,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:21,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296683012] [2022-11-25 18:12:21,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296683012] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:12:21,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116464907] [2022-11-25 18:12:21,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:21,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:12:21,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:12:21,570 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:12:21,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 18:12:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:21,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 18:12:21,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:12:21,787 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:21,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:12:22,118 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:22,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116464907] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:12:22,119 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:12:22,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-11-25 18:12:22,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355829118] [2022-11-25 18:12:22,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:12:22,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-25 18:12:22,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:22,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-25 18:12:22,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=420, Unknown=0, NotChecked=0, Total=650 [2022-11-25 18:12:22,125 INFO L87 Difference]: Start difference. First operand 188 states and 231 transitions. Second operand has 26 states, 26 states have (on average 5.038461538461538) internal successors, (131), 26 states have internal predecessors, (131), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 18:12:23,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:12:23,006 INFO L93 Difference]: Finished difference Result 1144 states and 1479 transitions. [2022-11-25 18:12:23,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-25 18:12:23,006 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.038461538461538) internal successors, (131), 26 states have internal predecessors, (131), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 62 [2022-11-25 18:12:23,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:12:23,010 INFO L225 Difference]: With dead ends: 1144 [2022-11-25 18:12:23,011 INFO L226 Difference]: Without dead ends: 1007 [2022-11-25 18:12:23,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=740, Invalid=1152, Unknown=0, NotChecked=0, Total=1892 [2022-11-25 18:12:23,013 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 873 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:12:23,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 583 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 18:12:23,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2022-11-25 18:12:23,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 238. [2022-11-25 18:12:23,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 211 states have (on average 1.3459715639810426) internal successors, (284), 229 states have internal predecessors, (284), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:12:23,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 292 transitions. [2022-11-25 18:12:23,044 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 292 transitions. Word has length 62 [2022-11-25 18:12:23,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:23,045 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 292 transitions. [2022-11-25 18:12:23,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.038461538461538) internal successors, (131), 26 states have internal predecessors, (131), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 18:12:23,045 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 292 transitions. [2022-11-25 18:12:23,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 18:12:23,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:23,046 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:23,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-25 18:12:23,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 18:12:23,251 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:12:23,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:23,252 INFO L85 PathProgramCache]: Analyzing trace with hash 680252040, now seen corresponding path program 2 times [2022-11-25 18:12:23,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:23,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571934313] [2022-11-25 18:12:23,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:23,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:23,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:12:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:23,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 18:12:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:23,583 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 16 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:23,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:23,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571934313] [2022-11-25 18:12:23,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571934313] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:12:23,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559221691] [2022-11-25 18:12:23,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:12:23,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:12:23,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:12:23,585 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:12:23,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 18:12:23,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 18:12:23,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:12:23,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 18:12:23,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:12:23,859 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 16 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:23,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:12:24,179 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 16 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:24,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559221691] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:12:24,180 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:12:24,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2022-11-25 18:12:24,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106182885] [2022-11-25 18:12:24,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:12:24,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-25 18:12:24,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:24,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-25 18:12:24,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=409, Unknown=0, NotChecked=0, Total=600 [2022-11-25 18:12:24,182 INFO L87 Difference]: Start difference. First operand 238 states and 292 transitions. Second operand has 25 states, 25 states have (on average 5.64) internal successors, (141), 25 states have internal predecessors, (141), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 18:12:41,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:12:41,178 INFO L93 Difference]: Finished difference Result 726 states and 917 transitions. [2022-11-25 18:12:41,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 18:12:41,178 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.64) internal successors, (141), 25 states have internal predecessors, (141), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 69 [2022-11-25 18:12:41,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:12:41,181 INFO L225 Difference]: With dead ends: 726 [2022-11-25 18:12:41,181 INFO L226 Difference]: Without dead ends: 569 [2022-11-25 18:12:41,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=502, Invalid=902, Unknown=2, NotChecked=0, Total=1406 [2022-11-25 18:12:41,183 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 338 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 1611 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:12:41,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 1611 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:12:41,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-11-25 18:12:41,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 228. [2022-11-25 18:12:41,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 201 states have (on average 1.308457711442786) internal successors, (263), 219 states have internal predecessors, (263), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:12:41,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 271 transitions. [2022-11-25 18:12:41,211 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 271 transitions. Word has length 69 [2022-11-25 18:12:41,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:41,211 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 271 transitions. [2022-11-25 18:12:41,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.64) internal successors, (141), 25 states have internal predecessors, (141), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 18:12:41,212 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 271 transitions. [2022-11-25 18:12:41,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-25 18:12:41,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:41,213 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:41,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 18:12:41,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 18:12:41,419 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:12:41,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:41,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1831155456, now seen corresponding path program 2 times [2022-11-25 18:12:41,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:41,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378328844] [2022-11-25 18:12:41,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:41,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:41,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:12:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 18:12:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:41,985 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:41,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:41,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378328844] [2022-11-25 18:12:41,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378328844] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:12:41,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331907515] [2022-11-25 18:12:41,986 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:12:41,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:12:41,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:12:41,991 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:12:41,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 18:12:42,089 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 18:12:42,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:12:42,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 18:12:42,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:12:42,449 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:42,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:12:43,350 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:43,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331907515] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:12:43,350 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:12:43,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2022-11-25 18:12:43,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609974359] [2022-11-25 18:12:43,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:12:43,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-25 18:12:43,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:43,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-25 18:12:43,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=1604, Unknown=0, NotChecked=0, Total=2450 [2022-11-25 18:12:43,354 INFO L87 Difference]: Start difference. First operand 228 states and 271 transitions. Second operand has 50 states, 50 states have (on average 5.02) internal successors, (251), 50 states have internal predecessors, (251), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 18:12:45,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:12:45,943 INFO L93 Difference]: Finished difference Result 2032 states and 2647 transitions. [2022-11-25 18:12:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-11-25 18:12:45,944 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.02) internal successors, (251), 50 states have internal predecessors, (251), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 102 [2022-11-25 18:12:45,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:12:45,951 INFO L225 Difference]: With dead ends: 2032 [2022-11-25 18:12:45,952 INFO L226 Difference]: Without dead ends: 1895 [2022-11-25 18:12:45,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1826 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2696, Invalid=4276, Unknown=0, NotChecked=0, Total=6972 [2022-11-25 18:12:45,957 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 2351 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 682 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2351 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 682 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:12:45,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2351 Valid, 1362 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [682 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 18:12:45,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2022-11-25 18:12:46,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 318. [2022-11-25 18:12:46,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 291 states have (on average 1.2783505154639174) internal successors, (372), 309 states have internal predecessors, (372), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:12:46,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 380 transitions. [2022-11-25 18:12:46,010 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 380 transitions. Word has length 102 [2022-11-25 18:12:46,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:46,010 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 380 transitions. [2022-11-25 18:12:46,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.02) internal successors, (251), 50 states have internal predecessors, (251), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 18:12:46,011 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 380 transitions. [2022-11-25 18:12:46,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-25 18:12:46,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:46,018 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:46,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 18:12:46,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:12:46,224 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:12:46,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:46,224 INFO L85 PathProgramCache]: Analyzing trace with hash 2111820424, now seen corresponding path program 3 times [2022-11-25 18:12:46,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:46,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142477988] [2022-11-25 18:12:46,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:46,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:46,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:12:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:46,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 18:12:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:47,053 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 16 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:12:47,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:47,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142477988] [2022-11-25 18:12:47,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142477988] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:12:47,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791369975] [2022-11-25 18:12:47,054 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 18:12:47,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:12:47,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:12:47,056 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:12:47,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 18:13:10,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-11-25 18:13:10,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:13:10,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-25 18:13:10,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:13:10,698 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 16 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:13:10,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:13:11,837 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 16 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:13:11,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791369975] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:13:11,837 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:13:11,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 49 [2022-11-25 18:13:11,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807593789] [2022-11-25 18:13:11,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:13:11,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-25 18:13:11,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:13:11,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-25 18:13:11,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=617, Invalid=1735, Unknown=0, NotChecked=0, Total=2352 [2022-11-25 18:13:11,841 INFO L87 Difference]: Start difference. First operand 318 states and 380 transitions. Second operand has 49 states, 49 states have (on average 5.326530612244898) internal successors, (261), 49 states have internal predecessors, (261), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 18:13:44,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:44,438 INFO L93 Difference]: Finished difference Result 1046 states and 1320 transitions. [2022-11-25 18:13:44,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-25 18:13:44,439 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 5.326530612244898) internal successors, (261), 49 states have internal predecessors, (261), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 109 [2022-11-25 18:13:44,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:44,442 INFO L225 Difference]: With dead ends: 1046 [2022-11-25 18:13:44,443 INFO L226 Difference]: Without dead ends: 889 [2022-11-25 18:13:44,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1220 ImplicationChecksByTransitivity, 31.2s TimeCoverageRelationStatistics Valid=1621, Invalid=3631, Unknown=4, NotChecked=0, Total=5256 [2022-11-25 18:13:44,446 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 842 mSDsluCounter, 3599 mSDsCounter, 0 mSdLazyCounter, 3049 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 3813 SdHoareTripleChecker+Invalid, 3096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 3049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:44,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 3813 Invalid, 3096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 3049 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-25 18:13:44,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2022-11-25 18:13:44,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 318. [2022-11-25 18:13:44,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 291 states have (on average 1.2439862542955327) internal successors, (362), 309 states have internal predecessors, (362), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:13:44,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 370 transitions. [2022-11-25 18:13:44,491 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 370 transitions. Word has length 109 [2022-11-25 18:13:44,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:44,491 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 370 transitions. [2022-11-25 18:13:44,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 5.326530612244898) internal successors, (261), 49 states have internal predecessors, (261), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 18:13:44,491 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 370 transitions. [2022-11-25 18:13:44,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-25 18:13:44,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:44,494 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:44,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 18:13:44,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:13:44,694 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:13:44,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:44,695 INFO L85 PathProgramCache]: Analyzing trace with hash 803787400, now seen corresponding path program 4 times [2022-11-25 18:13:44,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:13:44,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280468978] [2022-11-25 18:13:44,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:44,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:13:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:13:44,741 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:13:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:13:44,815 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:13:44,816 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:13:44,817 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2022-11-25 18:13:44,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2022-11-25 18:13:44,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2022-11-25 18:13:44,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2022-11-25 18:13:44,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2022-11-25 18:13:44,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2022-11-25 18:13:44,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2022-11-25 18:13:44,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2022-11-25 18:13:44,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2022-11-25 18:13:44,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2022-11-25 18:13:44,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2022-11-25 18:13:44,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2022-11-25 18:13:44,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2022-11-25 18:13:44,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2022-11-25 18:13:44,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2022-11-25 18:13:44,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2022-11-25 18:13:44,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2022-11-25 18:13:44,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2022-11-25 18:13:44,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2022-11-25 18:13:44,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2022-11-25 18:13:44,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2022-11-25 18:13:44,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2022-11-25 18:13:44,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2022-11-25 18:13:44,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2022-11-25 18:13:44,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 18:13:44,837 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:44,846 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:13:44,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:13:44 BoogieIcfgContainer [2022-11-25 18:13:44,918 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:13:44,918 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:13:44,918 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:13:44,919 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:13:44,919 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:12:15" (3/4) ... [2022-11-25 18:13:44,922 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 18:13:44,922 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:13:44,923 INFO L158 Benchmark]: Toolchain (without parser) took 90308.81ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 135.2MB in the beginning and 109.9MB in the end (delta: 25.2MB). Peak memory consumption was 105.0MB. Max. memory is 16.1GB. [2022-11-25 18:13:44,923 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:13:44,924 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.79ms. Allocated memory is still 172.0MB. Free memory was 134.7MB in the beginning and 121.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 18:13:44,924 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.18ms. Allocated memory is still 172.0MB. Free memory was 121.1MB in the beginning and 118.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:13:44,924 INFO L158 Benchmark]: Boogie Preprocessor took 40.96ms. Allocated memory is still 172.0MB. Free memory was 118.5MB in the beginning and 116.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:13:44,925 INFO L158 Benchmark]: RCFGBuilder took 774.45ms. Allocated memory is still 172.0MB. Free memory was 116.9MB in the beginning and 94.3MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 18:13:44,925 INFO L158 Benchmark]: TraceAbstraction took 89114.25ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 93.3MB in the beginning and 109.9MB in the end (delta: -16.7MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2022-11-25 18:13:44,925 INFO L158 Benchmark]: Witness Printer took 4.30ms. Allocated memory is still 249.6MB. Free memory is still 109.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:13:44,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.79ms. Allocated memory is still 172.0MB. Free memory was 134.7MB in the beginning and 121.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.18ms. Allocated memory is still 172.0MB. Free memory was 121.1MB in the beginning and 118.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.96ms. Allocated memory is still 172.0MB. Free memory was 118.5MB in the beginning and 116.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 774.45ms. Allocated memory is still 172.0MB. Free memory was 116.9MB in the beginning and 94.3MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 89114.25ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 93.3MB in the beginning and 109.9MB in the end (delta: -16.7MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. * Witness Printer took 4.30ms. Allocated memory is still 249.6MB. Free memory is still 109.9MB. 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: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 76. Possible FailurePath: [L221] unsigned int a ; [L222] unsigned int ma = __VERIFIER_nondet_uint(); [L223] signed char ea = __VERIFIER_nondet_char(); [L224] unsigned int b ; [L225] unsigned int mb = __VERIFIER_nondet_uint(); [L226] signed char eb = __VERIFIER_nondet_char(); [L227] unsigned int r_mul ; [L228] unsigned int zero ; [L229] unsigned int one ; [L230] int sb ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; [L234] int __retres16 ; VAL [ea=0, eb=0] [L238] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L238] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=0, eb=0] [L238] zero = base2flt(0, 0) [L239] CALL, EXPR base2flt(1, 0) VAL [\old(e)=0, \old(m)=1] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L35] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L47] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] EXPR (e + 128) << 24U VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] res = m | (unsigned int )((e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=1, __retres4=1744830464, e=-24, m=0, res=1744830464] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=1, \result=1744830464, __retres4=1744830464, e=-24, m=0, res=1744830464] [L239] RET, EXPR base2flt(1, 0) VAL [base2flt(1, 0)=1744830464, ea=0, eb=0, zero=0] [L239] one = base2flt(1, 0) [L240] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 121 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 89.0s, OverallIterations: 17, TraceHistogramMax: 24, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 55.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5714 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5708 mSDsluCounter, 11797 SdHoareTripleChecker+Invalid, 4.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9902 mSDsCounter, 1078 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6211 IncrementalHoareTripleChecker+Invalid, 7289 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1078 mSolverCounterUnsat, 1895 mSDtfsCounter, 6211 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1176 GetRequests, 873 SyntacticMatches, 0 SemanticMatches, 303 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4057 ImplicationChecksByTransitivity, 50.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=318occurred in iteration=15, InterpolantAutomatonStates: 252, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 16 MinimizatonAttempts, 3849 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 23.3s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 1268 NumberOfCodeBlocks, 1268 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 1509 ConstructedInterpolants, 0 QuantifiedInterpolants, 7845 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1009 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 28 InterpolantComputations, 10 PerfectInterpolantSequences, 304/3646 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 18:13:44,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_3.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R --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 aa6f3ffe66f40e883b6b9462d3d92566e122af5c88e351ce665cbb8a404d0554 --- 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-38b53e6 [2022-11-25 18:13:47,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:13:47,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:13:47,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:13:47,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:13:47,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:13:47,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:13:47,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:13:47,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:13:47,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:13:47,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:13:47,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:13:47,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:13:47,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:13:47,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:13:47,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:13:47,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:13:47,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:13:47,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:13:47,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:13:47,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:13:47,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:13:47,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:13:47,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:13:47,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:13:47,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:13:47,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:13:47,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:13:47,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:13:47,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:13:47,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:13:47,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:13:47,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:13:47,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:13:47,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:13:47,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:13:47,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:13:47,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:13:47,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:13:47,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:13:47,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:13:47,371 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2022-11-25 18:13:47,419 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:13:47,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:13:47,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:13:47,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:13:47,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:13:47,422 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:13:47,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:13:47,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:13:47,423 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:13:47,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:13:47,426 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:13:47,426 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:13:47,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:13:47,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:13:47,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:13:47,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:13:47,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:13:47,428 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:13:47,428 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 18:13:47,428 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:13:47,428 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 18:13:47,428 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:13:47,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:13:47,429 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:13:47,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:13:47,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:13:47,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:13:47,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:13:47,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:13:47,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:13:47,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:13:47,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:13:47,431 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 18:13:47,432 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 18:13:47,432 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:13:47,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:13:47,432 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:13:47,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:13:47,433 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 18:13:47,433 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_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa6f3ffe66f40e883b6b9462d3d92566e122af5c88e351ce665cbb8a404d0554 [2022-11-25 18:13:47,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:13:47,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:13:47,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:13:47,802 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:13:47,806 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:13:47,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/bitvector/soft_float_3.c.cil.c [2022-11-25 18:13:50,823 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:13:51,109 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:13:51,115 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/sv-benchmarks/c/bitvector/soft_float_3.c.cil.c [2022-11-25 18:13:51,130 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/data/ee8d89ff5/98948c9ecb294dc8a53857318a99c696/FLAG2f6e3bd04 [2022-11-25 18:13:51,152 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/data/ee8d89ff5/98948c9ecb294dc8a53857318a99c696 [2022-11-25 18:13:51,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:13:51,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:13:51,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:13:51,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:13:51,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:13:51,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:13:51" (1/1) ... [2022-11-25 18:13:51,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d1bb126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:51, skipping insertion in model container [2022-11-25 18:13:51,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:13:51" (1/1) ... [2022-11-25 18:13:51,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:13:51,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:13:51,431 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_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/sv-benchmarks/c/bitvector/soft_float_3.c.cil.c[727,740] [2022-11-25 18:13:51,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:13:51,535 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:13:51,551 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_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/sv-benchmarks/c/bitvector/soft_float_3.c.cil.c[727,740] [2022-11-25 18:13:51,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:13:51,631 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:13:51,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:51 WrapperNode [2022-11-25 18:13:51,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:13:51,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:13:51,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:13:51,634 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:13:51,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:51" (1/1) ... [2022-11-25 18:13:51,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:51" (1/1) ... [2022-11-25 18:13:51,677 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 125 [2022-11-25 18:13:51,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:13:51,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:13:51,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:13:51,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:13:51,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:51" (1/1) ... [2022-11-25 18:13:51,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:51" (1/1) ... [2022-11-25 18:13:51,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:51" (1/1) ... [2022-11-25 18:13:51,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:51" (1/1) ... [2022-11-25 18:13:51,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:51" (1/1) ... [2022-11-25 18:13:51,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:51" (1/1) ... [2022-11-25 18:13:51,707 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:51" (1/1) ... [2022-11-25 18:13:51,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:51" (1/1) ... [2022-11-25 18:13:51,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:13:51,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:13:51,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:13:51,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:13:51,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:51" (1/1) ... [2022-11-25 18:13:51,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:13:51,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:13:51,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:13:51,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:13:51,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:13:51,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 18:13:51,804 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-25 18:13:51,804 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-25 18:13:51,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:13:51,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:13:51,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 18:13:51,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 18:13:51,931 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:13:51,932 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:13:52,501 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:13:52,508 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:13:52,508 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 18:13:52,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:13:52 BoogieIcfgContainer [2022-11-25 18:13:52,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:13:52,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:13:52,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:13:52,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:13:52,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:13:51" (1/3) ... [2022-11-25 18:13:52,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1003081a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:13:52, skipping insertion in model container [2022-11-25 18:13:52,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:51" (2/3) ... [2022-11-25 18:13:52,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1003081a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:13:52, skipping insertion in model container [2022-11-25 18:13:52,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:13:52" (3/3) ... [2022-11-25 18:13:52,536 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_3.c.cil.c [2022-11-25 18:13:52,563 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:13:52,563 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-11-25 18:13:52,640 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:13:52,649 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;@3b3eaacd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:13:52,650 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-25 18:13:52,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 66 states have (on average 1.7121212121212122) internal successors, (113), 91 states have internal predecessors, (113), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 18:13:52,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 18:13:52,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:52,663 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:52,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:13:52,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:52,671 INFO L85 PathProgramCache]: Analyzing trace with hash 638430033, now seen corresponding path program 1 times [2022-11-25 18:13:52,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:13:52,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370472923] [2022-11-25 18:13:52,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:52,687 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:52,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:13:52,698 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:13:52,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 18:13:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:52,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 18:13:52,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:13:52,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:13:52,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:13:52,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:13:52,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370472923] [2022-11-25 18:13:52,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1370472923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:13:52,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:13:52,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:13:52,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425219606] [2022-11-25 18:13:52,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:13:52,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:13:52,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:13:52,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:13:52,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:13:52,880 INFO L87 Difference]: Start difference. First operand has 98 states, 66 states have (on average 1.7121212121212122) internal successors, (113), 91 states have internal predecessors, (113), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:52,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:52,949 INFO L93 Difference]: Finished difference Result 183 states and 247 transitions. [2022-11-25 18:13:52,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:13:52,951 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 18:13:52,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:52,977 INFO L225 Difference]: With dead ends: 183 [2022-11-25 18:13:52,977 INFO L226 Difference]: Without dead ends: 69 [2022-11-25 18:13:52,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:13:52,987 INFO L413 NwaCegarLoop]: 108 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, 108 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:52,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:13:53,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-25 18:13:53,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-25 18:13:53,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 50 states have (on average 1.42) internal successors, (71), 63 states have internal predecessors, (71), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:13:53,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2022-11-25 18:13:53,046 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 9 [2022-11-25 18:13:53,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:53,046 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-11-25 18:13:53,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:53,047 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2022-11-25 18:13:53,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 18:13:53,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:53,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:53,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-25 18:13:53,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:53,260 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:13:53,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:53,261 INFO L85 PathProgramCache]: Analyzing trace with hash 637488767, now seen corresponding path program 1 times [2022-11-25 18:13:53,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:13:53,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184342577] [2022-11-25 18:13:53,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:53,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:53,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:13:53,270 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:13:53,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 18:13:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:53,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:13:53,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:13:53,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:13:53,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:13:53,398 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:13:53,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184342577] [2022-11-25 18:13:53,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184342577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:13:53,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:13:53,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:13:53,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008638341] [2022-11-25 18:13:53,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:13:53,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:13:53,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:13:53,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:13:53,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:13:53,414 INFO L87 Difference]: Start difference. First operand 69 states and 79 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:53,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:53,494 INFO L93 Difference]: Finished difference Result 143 states and 165 transitions. [2022-11-25 18:13:53,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:13:53,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 18:13:53,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:53,498 INFO L225 Difference]: With dead ends: 143 [2022-11-25 18:13:53,498 INFO L226 Difference]: Without dead ends: 77 [2022-11-25 18:13:53,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:13:53,500 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 9 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:53,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 214 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:13:53,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-25 18:13:53,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 74. [2022-11-25 18:13:53,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 67 states have internal predecessors, (75), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:13:53,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2022-11-25 18:13:53,511 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 9 [2022-11-25 18:13:53,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:53,511 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2022-11-25 18:13:53,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:53,512 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2022-11-25 18:13:53,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 18:13:53,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:53,513 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:53,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 18:13:53,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:53,724 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:13:53,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:53,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1499029201, now seen corresponding path program 1 times [2022-11-25 18:13:53,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:13:53,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581478689] [2022-11-25 18:13:53,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:53,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:53,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:13:53,733 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:13:53,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 18:13:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:53,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:13:53,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:13:53,829 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:13:53,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:13:53,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:13:53,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581478689] [2022-11-25 18:13:53,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581478689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:13:53,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:13:53,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:13:53,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779555871] [2022-11-25 18:13:53,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:13:53,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:13:53,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:13:53,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:13:53,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:13:53,833 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:13:53,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:53,946 INFO L93 Difference]: Finished difference Result 185 states and 216 transitions. [2022-11-25 18:13:53,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:13:53,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-25 18:13:53,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:53,948 INFO L225 Difference]: With dead ends: 185 [2022-11-25 18:13:53,948 INFO L226 Difference]: Without dead ends: 121 [2022-11-25 18:13:53,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:13:53,950 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 67 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:53,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 196 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:13:53,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-25 18:13:53,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 110. [2022-11-25 18:13:53,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 89 states have (on average 1.3820224719101124) internal successors, (123), 102 states have internal predecessors, (123), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:13:53,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 131 transitions. [2022-11-25 18:13:53,964 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 131 transitions. Word has length 16 [2022-11-25 18:13:53,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:53,964 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 131 transitions. [2022-11-25 18:13:53,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:13:53,965 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 131 transitions. [2022-11-25 18:13:53,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 18:13:53,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:53,966 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:53,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 18:13:54,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:54,179 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:13:54,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:54,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1438968756, now seen corresponding path program 1 times [2022-11-25 18:13:54,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:13:54,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158951621] [2022-11-25 18:13:54,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:54,181 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:54,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:13:54,182 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:13:54,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 18:13:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:54,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:13:54,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:13:54,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:13:54,257 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:13:54,257 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:13:54,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158951621] [2022-11-25 18:13:54,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158951621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:13:54,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:13:54,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:13:54,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190459354] [2022-11-25 18:13:54,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:13:54,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:13:54,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:13:54,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:13:54,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:13:54,260 INFO L87 Difference]: Start difference. First operand 110 states and 131 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:13:54,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:54,317 INFO L93 Difference]: Finished difference Result 189 states and 217 transitions. [2022-11-25 18:13:54,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:13:54,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-25 18:13:54,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:54,319 INFO L225 Difference]: With dead ends: 189 [2022-11-25 18:13:54,319 INFO L226 Difference]: Without dead ends: 100 [2022-11-25 18:13:54,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:13:54,321 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 31 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:54,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 217 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:13:54,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-25 18:13:54,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 94. [2022-11-25 18:13:54,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 86 states have internal predecessors, (101), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:13:54,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 109 transitions. [2022-11-25 18:13:54,331 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 109 transitions. Word has length 21 [2022-11-25 18:13:54,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:54,332 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 109 transitions. [2022-11-25 18:13:54,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:13:54,332 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 109 transitions. [2022-11-25 18:13:54,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 18:13:54,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:54,333 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:54,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-25 18:13:54,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:54,544 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:13:54,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:54,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1597331601, now seen corresponding path program 1 times [2022-11-25 18:13:54,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:13:54,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189099121] [2022-11-25 18:13:54,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:54,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:54,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:13:54,547 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:13:54,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-25 18:13:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:54,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 18:13:54,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:13:54,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:13:54,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:13:54,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:13:54,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189099121] [2022-11-25 18:13:54,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189099121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:13:54,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:13:54,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:13:54,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861302834] [2022-11-25 18:13:54,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:13:54,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:13:54,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:13:54,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:13:54,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:13:54,648 INFO L87 Difference]: Start difference. First operand 94 states and 109 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:13:54,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:54,734 INFO L93 Difference]: Finished difference Result 182 states and 206 transitions. [2022-11-25 18:13:54,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:13:54,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-25 18:13:54,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:54,736 INFO L225 Difference]: With dead ends: 182 [2022-11-25 18:13:54,737 INFO L226 Difference]: Without dead ends: 109 [2022-11-25 18:13:54,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:13:54,740 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 44 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:54,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 286 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:13:54,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-25 18:13:54,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 96. [2022-11-25 18:13:54,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 88 states have internal predecessors, (103), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:13:54,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2022-11-25 18:13:54,774 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 21 [2022-11-25 18:13:54,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:54,774 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2022-11-25 18:13:54,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:13:54,775 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2022-11-25 18:13:54,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 18:13:54,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:54,776 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:54,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-25 18:13:54,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:54,982 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:13:54,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:54,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1597440705, now seen corresponding path program 1 times [2022-11-25 18:13:54,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:13:54,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292134791] [2022-11-25 18:13:54,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:54,984 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:54,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:13:54,985 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:13:54,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-25 18:13:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:55,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 18:13:55,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:13:55,084 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:13:55,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:13:55,239 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:13:55,239 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:13:55,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292134791] [2022-11-25 18:13:55,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292134791] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:13:55,241 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:13:55,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-25 18:13:55,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784324668] [2022-11-25 18:13:55,241 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:13:55,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 18:13:55,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:13:55,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:13:55,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:13:55,246 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:13:56,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:56,010 INFO L93 Difference]: Finished difference Result 209 states and 245 transitions. [2022-11-25 18:13:56,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:13:56,011 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-25 18:13:56,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:56,013 INFO L225 Difference]: With dead ends: 209 [2022-11-25 18:13:56,013 INFO L226 Difference]: Without dead ends: 142 [2022-11-25 18:13:56,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-11-25 18:13:56,014 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 195 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:56,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 287 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 18:13:56,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-25 18:13:56,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 97. [2022-11-25 18:13:56,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 77 states have (on average 1.3376623376623376) internal successors, (103), 89 states have internal predecessors, (103), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:13:56,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2022-11-25 18:13:56,028 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 21 [2022-11-25 18:13:56,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:56,028 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2022-11-25 18:13:56,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:13:56,029 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2022-11-25 18:13:56,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-25 18:13:56,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:56,030 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:56,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-11-25 18:13:56,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:56,241 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:13:56,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:56,241 INFO L85 PathProgramCache]: Analyzing trace with hash -988850849, now seen corresponding path program 1 times [2022-11-25 18:13:56,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:13:56,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832100781] [2022-11-25 18:13:56,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:56,242 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:56,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:13:56,243 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:13:56,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/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 (8)] Waiting until timeout for monitored process [2022-11-25 18:13:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:56,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 18:13:56,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:13:56,371 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:13:56,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:13:56,471 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:13:56,471 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:13:56,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832100781] [2022-11-25 18:13:56,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832100781] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:13:56,472 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:13:56,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-25 18:13:56,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701969377] [2022-11-25 18:13:56,472 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:13:56,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 18:13:56,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:13:56,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 18:13:56,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-25 18:13:56,474 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:13:56,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:56,779 INFO L93 Difference]: Finished difference Result 209 states and 240 transitions. [2022-11-25 18:13:56,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 18:13:56,781 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-25 18:13:56,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:56,782 INFO L225 Difference]: With dead ends: 209 [2022-11-25 18:13:56,782 INFO L226 Difference]: Without dead ends: 137 [2022-11-25 18:13:56,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-11-25 18:13:56,786 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 158 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:56,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 417 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:13:56,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-25 18:13:56,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 115. [2022-11-25 18:13:56,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 95 states have (on average 1.305263157894737) internal successors, (124), 107 states have internal predecessors, (124), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:13:56,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 132 transitions. [2022-11-25 18:13:56,814 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 132 transitions. Word has length 26 [2022-11-25 18:13:56,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:56,815 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 132 transitions. [2022-11-25 18:13:56,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:13:56,816 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 132 transitions. [2022-11-25 18:13:56,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-25 18:13:56,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:56,822 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:56,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/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 (8)] Forceful destruction successful, exit code 0 [2022-11-25 18:13:57,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:57,034 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:13:57,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:57,034 INFO L85 PathProgramCache]: Analyzing trace with hash 411281957, now seen corresponding path program 1 times [2022-11-25 18:13:57,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:13:57,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204988482] [2022-11-25 18:13:57,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:57,035 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:57,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:13:57,036 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:13:57,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/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 (9)] Waiting until timeout for monitored process [2022-11-25 18:13:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:57,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 18:13:57,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:13:57,209 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:13:57,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:13:57,505 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:13:57,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:13:57,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204988482] [2022-11-25 18:13:57,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204988482] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:13:57,506 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:13:57,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-25 18:13:57,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832615151] [2022-11-25 18:13:57,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:13:57,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 18:13:57,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:13:57,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 18:13:57,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-25 18:13:57,509 INFO L87 Difference]: Start difference. First operand 115 states and 132 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 18:13:58,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:58,333 INFO L93 Difference]: Finished difference Result 299 states and 358 transitions. [2022-11-25 18:13:58,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 18:13:58,334 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-11-25 18:13:58,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:58,336 INFO L225 Difference]: With dead ends: 299 [2022-11-25 18:13:58,336 INFO L226 Difference]: Without dead ends: 230 [2022-11-25 18:13:58,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2022-11-25 18:13:58,337 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 164 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:58,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 440 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 18:13:58,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-11-25 18:13:58,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 117. [2022-11-25 18:13:58,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 97 states have (on average 1.268041237113402) internal successors, (123), 109 states have internal predecessors, (123), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:13:58,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 131 transitions. [2022-11-25 18:13:58,364 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 131 transitions. Word has length 38 [2022-11-25 18:13:58,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:58,366 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 131 transitions. [2022-11-25 18:13:58,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 18:13:58,366 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 131 transitions. [2022-11-25 18:13:58,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 18:13:58,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:58,371 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:13:58,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/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 (9)] Forceful destruction successful, exit code 0 [2022-11-25 18:13:58,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:58,583 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:13:58,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:58,583 INFO L85 PathProgramCache]: Analyzing trace with hash 472901983, now seen corresponding path program 2 times [2022-11-25 18:13:58,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:13:58,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650946405] [2022-11-25 18:13:58,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:13:58,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:13:58,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:13:58,584 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:13:58,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-25 18:13:58,642 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 18:13:58,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:13:58,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 18:13:58,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:13:58,798 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:13:58,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:13:59,124 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:13:59,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:13:59,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650946405] [2022-11-25 18:13:59,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650946405] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:13:59,124 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:13:59,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2022-11-25 18:13:59,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786011290] [2022-11-25 18:13:59,124 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:13:59,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-25 18:13:59,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:13:59,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-25 18:13:59,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2022-11-25 18:13:59,126 INFO L87 Difference]: Start difference. First operand 117 states and 131 transitions. Second operand has 19 states, 19 states have (on average 4.0) internal successors, (76), 17 states have internal predecessors, (76), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:13:59,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:59,970 INFO L93 Difference]: Finished difference Result 267 states and 308 transitions. [2022-11-25 18:13:59,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 18:13:59,971 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.0) internal successors, (76), 17 states have internal predecessors, (76), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2022-11-25 18:13:59,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:59,972 INFO L225 Difference]: With dead ends: 267 [2022-11-25 18:13:59,972 INFO L226 Difference]: Without dead ends: 195 [2022-11-25 18:13:59,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=383, Invalid=949, Unknown=0, NotChecked=0, Total=1332 [2022-11-25 18:13:59,974 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 234 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:59,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 1069 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:13:59,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-25 18:13:59,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 155. [2022-11-25 18:13:59,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 135 states have (on average 1.2444444444444445) internal successors, (168), 147 states have internal predecessors, (168), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:13:59,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 176 transitions. [2022-11-25 18:13:59,993 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 176 transitions. Word has length 46 [2022-11-25 18:13:59,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:13:59,994 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 176 transitions. [2022-11-25 18:13:59,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.0) internal successors, (76), 17 states have internal predecessors, (76), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:13:59,994 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 176 transitions. [2022-11-25 18:13:59,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 18:13:59,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:13:59,995 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:14:00,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-25 18:14:00,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:14:00,206 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:14:00,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:14:00,207 INFO L85 PathProgramCache]: Analyzing trace with hash 2137407013, now seen corresponding path program 2 times [2022-11-25 18:14:00,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:14:00,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [868097365] [2022-11-25 18:14:00,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:14:00,208 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:14:00,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:14:00,209 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:14:00,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/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 (11)] Waiting until timeout for monitored process [2022-11-25 18:14:00,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 18:14:00,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:14:00,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 18:14:00,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:14:00,271 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-11-25 18:14:00,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:14:00,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:14:00,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [868097365] [2022-11-25 18:14:00,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [868097365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:14:00,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:14:00,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:14:00,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65176923] [2022-11-25 18:14:00,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:14:00,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:14:00,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:14:00,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:14:00,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:14:00,275 INFO L87 Difference]: Start difference. First operand 155 states and 176 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:14:00,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:14:00,331 INFO L93 Difference]: Finished difference Result 161 states and 183 transitions. [2022-11-25 18:14:00,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:14:00,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 58 [2022-11-25 18:14:00,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:14:00,334 INFO L225 Difference]: With dead ends: 161 [2022-11-25 18:14:00,334 INFO L226 Difference]: Without dead ends: 160 [2022-11-25 18:14:00,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:14:00,335 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 2 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:14:00,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 140 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:14:00,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-25 18:14:00,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2022-11-25 18:14:00,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 135 states have (on average 1.237037037037037) internal successors, (167), 146 states have internal predecessors, (167), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:14:00,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 175 transitions. [2022-11-25 18:14:00,365 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 175 transitions. Word has length 58 [2022-11-25 18:14:00,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:14:00,366 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 175 transitions. [2022-11-25 18:14:00,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:14:00,366 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 175 transitions. [2022-11-25 18:14:00,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 18:14:00,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:14:00,367 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:14:00,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/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 (11)] Forceful destruction successful, exit code 0 [2022-11-25 18:14:00,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:14:00,579 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:14:00,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:14:00,579 INFO L85 PathProgramCache]: Analyzing trace with hash 2137474539, now seen corresponding path program 1 times [2022-11-25 18:14:00,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:14:00,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587531837] [2022-11-25 18:14:00,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:14:00,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:14:00,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:14:00,581 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:14:00,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-25 18:14:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:14:00,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 18:14:00,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:14:00,917 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:14:00,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:14:01,732 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:14:01,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:14:01,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587531837] [2022-11-25 18:14:01,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587531837] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:14:01,733 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:14:01,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2022-11-25 18:14:01,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137184459] [2022-11-25 18:14:01,734 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:14:01,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-25 18:14:01,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:14:01,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-25 18:14:01,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2022-11-25 18:14:01,735 INFO L87 Difference]: Start difference. First operand 154 states and 175 transitions. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 18:14:04,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:14:04,845 INFO L93 Difference]: Finished difference Result 476 states and 583 transitions. [2022-11-25 18:14:04,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 18:14:04,846 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 58 [2022-11-25 18:14:04,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:14:04,848 INFO L225 Difference]: With dead ends: 476 [2022-11-25 18:14:04,849 INFO L226 Difference]: Without dead ends: 408 [2022-11-25 18:14:04,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=343, Invalid=649, Unknown=0, NotChecked=0, Total=992 [2022-11-25 18:14:04,850 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 616 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:14:04,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 844 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 18:14:04,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-11-25 18:14:04,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 156. [2022-11-25 18:14:04,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 137 states have (on average 1.1824817518248176) internal successors, (162), 148 states have internal predecessors, (162), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:14:04,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 170 transitions. [2022-11-25 18:14:04,900 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 170 transitions. Word has length 58 [2022-11-25 18:14:04,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:14:04,901 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 170 transitions. [2022-11-25 18:14:04,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 18:14:04,901 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 170 transitions. [2022-11-25 18:14:04,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 18:14:04,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:14:04,902 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:14:04,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-25 18:14:05,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:14:05,115 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:14:05,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:14:05,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1631261023, now seen corresponding path program 3 times [2022-11-25 18:14:05,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:14:05,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138537088] [2022-11-25 18:14:05,116 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 18:14:05,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:14:05,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:14:05,117 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:14:05,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-25 18:14:05,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2022-11-25 18:14:05,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:14:05,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-25 18:14:05,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:14:05,616 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:14:05,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:14:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:14:06,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:14:06,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138537088] [2022-11-25 18:14:06,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138537088] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:14:06,804 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:14:06,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 35 [2022-11-25 18:14:06,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136062290] [2022-11-25 18:14:06,805 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:14:06,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-25 18:14:06,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:14:06,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-25 18:14:06,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=886, Unknown=0, NotChecked=0, Total=1190 [2022-11-25 18:14:06,809 INFO L87 Difference]: Start difference. First operand 156 states and 170 transitions. Second operand has 35 states, 35 states have (on average 4.457142857142857) internal successors, (156), 33 states have internal predecessors, (156), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:14:15,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:14:15,644 INFO L93 Difference]: Finished difference Result 556 states and 657 transitions. [2022-11-25 18:14:15,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-11-25 18:14:15,645 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.457142857142857) internal successors, (156), 33 states have internal predecessors, (156), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-11-25 18:14:15,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:14:15,651 INFO L225 Difference]: With dead ends: 556 [2022-11-25 18:14:15,651 INFO L226 Difference]: Without dead ends: 485 [2022-11-25 18:14:15,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2296 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=2711, Invalid=7189, Unknown=0, NotChecked=0, Total=9900 [2022-11-25 18:14:15,656 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 741 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 3620 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:14:15,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 3620 Invalid, 1639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 18:14:15,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2022-11-25 18:14:15,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 234. [2022-11-25 18:14:15,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 215 states have (on average 1.1906976744186046) internal successors, (256), 226 states have internal predecessors, (256), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:14:15,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 264 transitions. [2022-11-25 18:14:15,707 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 264 transitions. Word has length 86 [2022-11-25 18:14:15,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:14:15,709 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 264 transitions. [2022-11-25 18:14:15,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.457142857142857) internal successors, (156), 33 states have internal predecessors, (156), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:14:15,709 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 264 transitions. [2022-11-25 18:14:15,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-25 18:14:15,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:14:15,710 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:14:15,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-25 18:14:15,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:14:15,922 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:14:15,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:14:15,923 INFO L85 PathProgramCache]: Analyzing trace with hash 83258859, now seen corresponding path program 2 times [2022-11-25 18:14:15,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:14:15,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1940536966] [2022-11-25 18:14:15,924 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:14:15,924 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:14:15,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:14:15,925 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:14:15,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-25 18:14:16,008 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 18:14:16,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:14:16,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 18:14:16,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:14:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:14:16,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:14:19,017 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:14:19,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:14:19,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1940536966] [2022-11-25 18:14:19,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1940536966] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:14:19,018 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:14:19,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2022-11-25 18:14:19,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634219175] [2022-11-25 18:14:19,018 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:14:19,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-25 18:14:19,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:14:19,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-25 18:14:19,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:14:19,021 INFO L87 Difference]: Start difference. First operand 234 states and 264 transitions. Second operand has 34 states, 34 states have (on average 5.0) internal successors, (170), 34 states have internal predecessors, (170), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 18:14:31,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:14:31,163 INFO L93 Difference]: Finished difference Result 845 states and 1053 transitions. [2022-11-25 18:14:31,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-25 18:14:31,167 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.0) internal successors, (170), 34 states have internal predecessors, (170), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 98 [2022-11-25 18:14:31,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:14:31,171 INFO L225 Difference]: With dead ends: 845 [2022-11-25 18:14:31,172 INFO L226 Difference]: Without dead ends: 777 [2022-11-25 18:14:31,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=1327, Invalid=2705, Unknown=0, NotChecked=0, Total=4032 [2022-11-25 18:14:31,176 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1134 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 4267 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 4546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 4267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:14:31,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 2421 Invalid, 4546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 4267 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-25 18:14:31,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2022-11-25 18:14:31,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 236. [2022-11-25 18:14:31,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 217 states have (on average 1.119815668202765) internal successors, (243), 228 states have internal predecessors, (243), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:14:31,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 251 transitions. [2022-11-25 18:14:31,239 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 251 transitions. Word has length 98 [2022-11-25 18:14:31,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:14:31,239 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 251 transitions. [2022-11-25 18:14:31,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.0) internal successors, (170), 34 states have internal predecessors, (170), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 18:14:31,240 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 251 transitions. [2022-11-25 18:14:31,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-25 18:14:31,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:14:31,245 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:14:31,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-25 18:14:31,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:14:31,447 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:14:31,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:14:31,448 INFO L85 PathProgramCache]: Analyzing trace with hash -598490273, now seen corresponding path program 4 times [2022-11-25 18:14:31,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:14:31,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410450833] [2022-11-25 18:14:31,448 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 18:14:31,448 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:14:31,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:14:31,450 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:14:31,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/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 (15)] Waiting until timeout for monitored process [2022-11-25 18:14:31,524 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 18:14:31,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:14:31,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-25 18:14:31,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:14:32,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:14:32,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:14:35,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:14:35,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:14:35,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410450833] [2022-11-25 18:14:35,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410450833] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:14:35,773 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:14:35,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 53 [2022-11-25 18:14:35,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933907052] [2022-11-25 18:14:35,774 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:14:35,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-25 18:14:35,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:14:35,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-25 18:14:35,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=731, Invalid=2131, Unknown=0, NotChecked=0, Total=2862 [2022-11-25 18:14:35,777 INFO L87 Difference]: Start difference. First operand 236 states and 251 transitions. Second operand has 54 states, 53 states have (on average 4.886792452830188) internal successors, (259), 52 states have internal predecessors, (259), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:15:30,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:15:30,487 INFO L93 Difference]: Finished difference Result 486 states and 552 transitions. [2022-11-25 18:15:30,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-11-25 18:15:30,489 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 4.886792452830188) internal successors, (259), 52 states have internal predecessors, (259), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 136 [2022-11-25 18:15:30,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:15:30,492 INFO L225 Difference]: With dead ends: 486 [2022-11-25 18:15:30,492 INFO L226 Difference]: Without dead ends: 482 [2022-11-25 18:15:30,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2112 ImplicationChecksByTransitivity, 51.4s TimeCoverageRelationStatistics Valid=4535, Invalid=12235, Unknown=0, NotChecked=0, Total=16770 [2022-11-25 18:15:30,496 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 996 mSDsluCounter, 4087 mSDsCounter, 0 mSdLazyCounter, 4263 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 4194 SdHoareTripleChecker+Invalid, 4416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 4263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:15:30,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 4194 Invalid, 4416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 4263 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-25 18:15:30,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-11-25 18:15:30,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 360. [2022-11-25 18:15:30,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 341 states have (on average 1.2082111436950147) internal successors, (412), 352 states have internal predecessors, (412), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:15:30,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 420 transitions. [2022-11-25 18:15:30,573 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 420 transitions. Word has length 136 [2022-11-25 18:15:30,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:15:30,574 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 420 transitions. [2022-11-25 18:15:30,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 4.886792452830188) internal successors, (259), 52 states have internal predecessors, (259), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:15:30,575 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 420 transitions. [2022-11-25 18:15:30,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-25 18:15:30,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:15:30,579 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:15:30,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/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 (15)] Forceful destruction successful, exit code 0 [2022-11-25 18:15:30,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:15:30,790 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:15:30,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:15:30,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1598853735, now seen corresponding path program 1 times [2022-11-25 18:15:30,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:15:30,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975160103] [2022-11-25 18:15:30,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:15:30,792 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:15:30,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:15:30,792 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:15:30,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-25 18:15:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:15:30,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:15:30,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:15:30,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1393 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1385 trivial. 0 not checked. [2022-11-25 18:15:30,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:15:30,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:15:30,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975160103] [2022-11-25 18:15:30,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975160103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:15:30,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:15:30,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:15:30,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244404497] [2022-11-25 18:15:30,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:15:30,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:15:30,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:15:30,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:15:30,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:15:30,982 INFO L87 Difference]: Start difference. First operand 360 states and 420 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:15:31,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:15:31,680 INFO L93 Difference]: Finished difference Result 378 states and 441 transitions. [2022-11-25 18:15:31,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:15:31,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 152 [2022-11-25 18:15:31,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:15:31,683 INFO L225 Difference]: With dead ends: 378 [2022-11-25 18:15:31,683 INFO L226 Difference]: Without dead ends: 375 [2022-11-25 18:15:31,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:15:31,684 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 63 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:15:31,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 153 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 18:15:31,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-11-25 18:15:31,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 367. [2022-11-25 18:15:31,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 348 states have (on average 1.206896551724138) internal successors, (420), 359 states have internal predecessors, (420), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 18:15:31,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 428 transitions. [2022-11-25 18:15:31,790 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 428 transitions. Word has length 152 [2022-11-25 18:15:31,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:15:31,790 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 428 transitions. [2022-11-25 18:15:31,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 18:15:31,791 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 428 transitions. [2022-11-25 18:15:31,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-25 18:15:31,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:15:31,793 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:15:31,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-25 18:15:32,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:15:32,004 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 18:15:32,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:15:32,005 INFO L85 PathProgramCache]: Analyzing trace with hash 264409090, now seen corresponding path program 1 times [2022-11-25 18:15:32,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:15:32,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858276443] [2022-11-25 18:15:32,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:15:32,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:15:32,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:15:32,006 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 18:15:32,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/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 (17)] Waiting until timeout for monitored process [2022-11-25 18:15:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:15:32,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:15:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:15:32,284 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 18:15:32,284 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:15:32,285 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2022-11-25 18:15:32,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2022-11-25 18:15:32,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2022-11-25 18:15:32,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2022-11-25 18:15:32,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2022-11-25 18:15:32,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2022-11-25 18:15:32,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2022-11-25 18:15:32,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2022-11-25 18:15:32,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2022-11-25 18:15:32,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2022-11-25 18:15:32,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2022-11-25 18:15:32,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2022-11-25 18:15:32,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2022-11-25 18:15:32,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2022-11-25 18:15:32,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2022-11-25 18:15:32,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2022-11-25 18:15:32,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2022-11-25 18:15:32,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2022-11-25 18:15:32,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2022-11-25 18:15:32,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2022-11-25 18:15:32,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2022-11-25 18:15:32,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2022-11-25 18:15:32,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2022-11-25 18:15:32,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2022-11-25 18:15:32,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/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 (17)] Ended with exit code 0 [2022-11-25 18:15:32,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 18:15:32,508 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:15:32,513 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:15:32,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:15:32 BoogieIcfgContainer [2022-11-25 18:15:32,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:15:32,617 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:15:32,618 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:15:32,618 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:15:32,618 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:13:52" (3/4) ... [2022-11-25 18:15:32,620 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 18:15:32,741 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:15:32,741 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:15:32,742 INFO L158 Benchmark]: Toolchain (without parser) took 101582.11ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 69.0MB in the beginning and 54.2MB in the end (delta: 14.8MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2022-11-25 18:15:32,743 INFO L158 Benchmark]: CDTParser took 0.77ms. Allocated memory is still 60.8MB. Free memory was 39.2MB in the beginning and 39.1MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:15:32,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.55ms. Allocated memory is still 90.2MB. Free memory was 68.7MB in the beginning and 54.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 18:15:32,744 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.51ms. Allocated memory is still 90.2MB. Free memory was 54.8MB in the beginning and 52.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:15:32,744 INFO L158 Benchmark]: Boogie Preprocessor took 33.33ms. Allocated memory is still 90.2MB. Free memory was 52.9MB in the beginning and 51.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:15:32,744 INFO L158 Benchmark]: RCFGBuilder took 798.24ms. Allocated memory is still 90.2MB. Free memory was 51.1MB in the beginning and 55.4MB in the end (delta: -4.2MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-11-25 18:15:32,745 INFO L158 Benchmark]: TraceAbstraction took 100103.87ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 54.6MB in the beginning and 60.5MB in the end (delta: -5.9MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2022-11-25 18:15:32,745 INFO L158 Benchmark]: Witness Printer took 124.05ms. Allocated memory is still 132.1MB. Free memory was 60.5MB in the beginning and 54.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 18:15:32,753 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77ms. Allocated memory is still 60.8MB. Free memory was 39.2MB in the beginning and 39.1MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.55ms. Allocated memory is still 90.2MB. Free memory was 68.7MB in the beginning and 54.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.51ms. Allocated memory is still 90.2MB. Free memory was 54.8MB in the beginning and 52.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.33ms. Allocated memory is still 90.2MB. Free memory was 52.9MB in the beginning and 51.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 798.24ms. Allocated memory is still 90.2MB. Free memory was 51.1MB in the beginning and 55.4MB in the end (delta: -4.2MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * TraceAbstraction took 100103.87ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 54.6MB in the beginning and 60.5MB in the end (delta: -5.9MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * Witness Printer took 124.05ms. Allocated memory is still 132.1MB. Free memory was 60.5MB in the beginning and 54.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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: 77]: integer overflow possible integer overflow possible We found a FailurePath: [L221] unsigned int a ; [L222] unsigned int ma = __VERIFIER_nondet_uint(); [L223] signed char ea = __VERIFIER_nondet_char(); [L224] unsigned int b ; [L225] unsigned int mb = __VERIFIER_nondet_uint(); [L226] signed char eb = __VERIFIER_nondet_char(); [L227] unsigned int r_mul ; [L228] unsigned int zero ; [L229] unsigned int one ; [L230] int sb ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; [L234] int __retres16 ; [L238] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L238] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0] [L238] zero = base2flt(0, 0) [L239] CALL, EXPR base2flt(1, 0) VAL [\old(e)=0, \old(m)=1] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L35] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L47] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] EXPR (e + 128) << 24U [L77] res = m | (unsigned int )((e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=1, __retres4=1744830464, e=-24, m=0, res=1744830464] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=1, \result=1744830464, __retres4=1744830464, e=-24, m=0, res=1744830464] [L239] RET, EXPR base2flt(1, 0) VAL [base2flt(1, 0)=1744830464, zero=0] [L239] one = base2flt(1, 0) [L240] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 98 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 99.9s, OverallIterations: 16, TraceHistogramMax: 24, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 82.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4454 SdHoareTripleChecker+Valid, 18.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4454 mSDsluCounter, 14606 SdHoareTripleChecker+Invalid, 16.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13145 mSDsCounter, 701 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12317 IncrementalHoareTripleChecker+Invalid, 13018 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 701 mSolverCounterUnsat, 1461 mSDtfsCounter, 12317 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1627 GetRequests, 1212 SyntacticMatches, 0 SemanticMatches, 415 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4923 ImplicationChecksByTransitivity, 69.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=367occurred in iteration=15, InterpolantAutomatonStates: 316, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 15 MinimizatonAttempts, 1433 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 950 NumberOfCodeBlocks, 903 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1281 ConstructedInterpolants, 8 QuantifiedInterpolants, 7708 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1272 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 23 InterpolantComputations, 7 PerfectInterpolantSequences, 1576/6570 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 18:15:32,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e3c1c86-b92d-44d0-9190-cc3c25ad02d5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)