./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_10-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_10-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash acde98dd01af02b5a508b32116f1b2c3612f1f84e6ba2fe02fc76c333a1d32d3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:00:48,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:00:48,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:00:48,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:00:48,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:00:48,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:00:48,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:00:48,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:00:48,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:00:48,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:00:48,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:00:48,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:00:48,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:00:48,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:00:48,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:00:48,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:00:48,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:00:48,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:00:48,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:00:48,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:00:48,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:00:48,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:00:48,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:00:48,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:00:48,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:00:48,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:00:48,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:00:48,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:00:48,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:00:48,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:00:48,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:00:48,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:00:48,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:00:48,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:00:48,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:00:48,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:00:48,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:00:48,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:00:48,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:00:48,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:00:48,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:00:48,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 15:00:48,917 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:00:48,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:00:48,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:00:48,918 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:00:48,919 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:00:48,919 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:00:48,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:00:48,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:00:48,920 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:00:48,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:00:48,920 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:00:48,920 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:00:48,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:00:48,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:00:48,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:00:48,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:00:48,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:00:48,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:00:48,921 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 15:00:48,922 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:00:48,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:00:48,922 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:00:48,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:00:48,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:00:48,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:00:48,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:00:48,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:00:48,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:00:48,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:00:48,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:00:48,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:00:48,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:00:48,924 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:00:48,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:00:48,924 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:00:48,924 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:00:48,925 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:00:48,925 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_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> acde98dd01af02b5a508b32116f1b2c3612f1f84e6ba2fe02fc76c333a1d32d3 [2022-12-13 15:00:49,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:00:49,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:00:49,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:00:49,143 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:00:49,144 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:00:49,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/recursive-simple/fibo_10-1.c [2022-12-13 15:00:51,581 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:00:51,739 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:00:51,739 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/sv-benchmarks/c/recursive-simple/fibo_10-1.c [2022-12-13 15:00:51,743 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/data/4ce390f99/ba3fbb40a67e4e768a558f1ea401edee/FLAG0f0b4a430 [2022-12-13 15:00:52,150 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/data/4ce390f99/ba3fbb40a67e4e768a558f1ea401edee [2022-12-13 15:00:52,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:00:52,153 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:00:52,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:00:52,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:00:52,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:00:52,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:00:52" (1/1) ... [2022-12-13 15:00:52,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dffaaa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:52, skipping insertion in model container [2022-12-13 15:00:52,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:00:52" (1/1) ... [2022-12-13 15:00:52,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:00:52,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:00:52,269 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_c5cc4ac6-6535-4413-a243-d9eeebfe6739/sv-benchmarks/c/recursive-simple/fibo_10-1.c[743,756] [2022-12-13 15:00:52,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:00:52,277 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:00:52,286 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_c5cc4ac6-6535-4413-a243-d9eeebfe6739/sv-benchmarks/c/recursive-simple/fibo_10-1.c[743,756] [2022-12-13 15:00:52,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:00:52,296 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:00:52,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:52 WrapperNode [2022-12-13 15:00:52,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:00:52,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:00:52,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:00:52,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:00:52,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:52" (1/1) ... [2022-12-13 15:00:52,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:52" (1/1) ... [2022-12-13 15:00:52,317 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-12-13 15:00:52,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:00:52,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:00:52,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:00:52,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:00:52,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:52" (1/1) ... [2022-12-13 15:00:52,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:52" (1/1) ... [2022-12-13 15:00:52,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:52" (1/1) ... [2022-12-13 15:00:52,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:52" (1/1) ... [2022-12-13 15:00:52,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:52" (1/1) ... [2022-12-13 15:00:52,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:52" (1/1) ... [2022-12-13 15:00:52,327 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:52" (1/1) ... [2022-12-13 15:00:52,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:52" (1/1) ... [2022-12-13 15:00:52,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:00:52,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:00:52,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:00:52,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:00:52,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:52" (1/1) ... [2022-12-13 15:00:52,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:00:52,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:00:52,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:00:52,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:00:52,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:00:52,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:00:52,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:00:52,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:00:52,378 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2022-12-13 15:00:52,378 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2022-12-13 15:00:52,425 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:00:52,427 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:00:52,504 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:00:52,508 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:00:52,509 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:00:52,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:00:52 BoogieIcfgContainer [2022-12-13 15:00:52,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:00:52,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:00:52,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:00:52,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:00:52,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:00:52" (1/3) ... [2022-12-13 15:00:52,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b1b8c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:00:52, skipping insertion in model container [2022-12-13 15:00:52,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:52" (2/3) ... [2022-12-13 15:00:52,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b1b8c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:00:52, skipping insertion in model container [2022-12-13 15:00:52,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:00:52" (3/3) ... [2022-12-13 15:00:52,517 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_10-1.c [2022-12-13 15:00:52,530 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:00:52,530 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 15:00:52,565 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:00:52,569 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;@168cff4a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:00:52,570 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 15:00:52,573 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 20 states have (on average 1.45) internal successors, (29), 26 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 15:00:52,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 15:00:52,578 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:52,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:00:52,579 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 15:00:52,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:52,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1840307469, now seen corresponding path program 1 times [2022-12-13 15:00:52,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:00:52,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151550897] [2022-12-13 15:00:52,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:52,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:00:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:52,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:00:52,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:00:52,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151550897] [2022-12-13 15:00:52,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151550897] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:00:52,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:00:52,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:00:52,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480814834] [2022-12-13 15:00:52,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:00:52,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:00:52,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:00:52,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:00:52,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:00:52,732 INFO L87 Difference]: Start difference. First operand has 31 states, 20 states have (on average 1.45) internal successors, (29), 26 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:00:52,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:52,772 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2022-12-13 15:00:52,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:00:52,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 7 [2022-12-13 15:00:52,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:52,780 INFO L225 Difference]: With dead ends: 37 [2022-12-13 15:00:52,780 INFO L226 Difference]: Without dead ends: 24 [2022-12-13 15:00:52,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:00:52,785 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 14 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:52,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 38 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:00:52,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-13 15:00:52,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2022-12-13 15:00:52,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:00:52,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-12-13 15:00:52,811 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 7 [2022-12-13 15:00:52,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:52,811 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-12-13 15:00:52,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:00:52,812 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-12-13 15:00:52,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 15:00:52,812 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:52,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:00:52,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:00:52,813 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 15:00:52,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:52,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1214956750, now seen corresponding path program 1 times [2022-12-13 15:00:52,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:00:52,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454063134] [2022-12-13 15:00:52,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:52,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:00:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:52,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:00:52,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:00:52,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454063134] [2022-12-13 15:00:52,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454063134] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:00:52,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:00:52,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:00:52,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857512914] [2022-12-13 15:00:52,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:00:52,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:00:52,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:00:52,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:00:52,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:00:52,871 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:00:52,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:52,920 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-12-13 15:00:52,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:00:52,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-13 15:00:52,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:52,921 INFO L225 Difference]: With dead ends: 22 [2022-12-13 15:00:52,921 INFO L226 Difference]: Without dead ends: 20 [2022-12-13 15:00:52,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:00:52,922 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 28 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:52,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 24 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:00:52,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-12-13 15:00:52,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-12-13 15:00:52,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:00:52,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-12-13 15:00:52,926 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 8 [2022-12-13 15:00:52,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:52,926 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-12-13 15:00:52,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:00:52,927 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-12-13 15:00:52,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-13 15:00:52,927 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:52,927 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:00:52,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:00:52,928 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 15:00:52,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:52,928 INFO L85 PathProgramCache]: Analyzing trace with hash 199265907, now seen corresponding path program 1 times [2022-12-13 15:00:52,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:00:52,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023733843] [2022-12-13 15:00:52,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:52,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:00:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:53,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:00:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:53,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 15:00:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:53,096 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 15:00:53,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:00:53,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023733843] [2022-12-13 15:00:53,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023733843] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:00:53,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:00:53,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:00:53,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205611080] [2022-12-13 15:00:53,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:00:53,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:00:53,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:00:53,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:00:53,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:00:53,100 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:00:53,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:53,151 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2022-12-13 15:00:53,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:00:53,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2022-12-13 15:00:53,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:53,153 INFO L225 Difference]: With dead ends: 36 [2022-12-13 15:00:53,153 INFO L226 Difference]: Without dead ends: 34 [2022-12-13 15:00:53,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:00:53,154 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:53,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 51 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:00:53,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-12-13 15:00:53,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2022-12-13 15:00:53,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-13 15:00:53,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-12-13 15:00:53,164 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 29 [2022-12-13 15:00:53,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:53,165 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-12-13 15:00:53,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:00:53,165 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-12-13 15:00:53,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-13 15:00:53,166 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:53,166 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:00:53,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:00:53,167 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 15:00:53,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:53,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1894113426, now seen corresponding path program 1 times [2022-12-13 15:00:53,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:00:53,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947511470] [2022-12-13 15:00:53,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:53,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:00:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:53,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:00:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:53,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 15:00:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:53,301 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 15:00:53,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:00:53,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947511470] [2022-12-13 15:00:53,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947511470] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:00:53,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692241085] [2022-12-13 15:00:53,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:53,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:00:53,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:00:53,303 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:00:53,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 15:00:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:53,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 15:00:53,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:00:53,464 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:00:53,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:00:53,596 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 15:00:53,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692241085] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:00:53,596 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:00:53,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-12-13 15:00:53,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774748491] [2022-12-13 15:00:53,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:00:53,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-13 15:00:53,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:00:53,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-13 15:00:53,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-12-13 15:00:53,600 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 19 states, 17 states have (on average 3.176470588235294) internal successors, (54), 15 states have internal predecessors, (54), 9 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 15:00:54,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:54,023 INFO L93 Difference]: Finished difference Result 178 states and 248 transitions. [2022-12-13 15:00:54,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 15:00:54,024 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.176470588235294) internal successors, (54), 15 states have internal predecessors, (54), 9 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 30 [2022-12-13 15:00:54,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:54,025 INFO L225 Difference]: With dead ends: 178 [2022-12-13 15:00:54,025 INFO L226 Difference]: Without dead ends: 145 [2022-12-13 15:00:54,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2022-12-13 15:00:54,027 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 195 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:54,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 258 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 15:00:54,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-12-13 15:00:54,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 129. [2022-12-13 15:00:54,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 100 states have (on average 1.11) internal successors, (111), 102 states have internal predecessors, (111), 17 states have call successors, (17), 5 states have call predecessors, (17), 10 states have return successors, (46), 21 states have call predecessors, (46), 16 states have call successors, (46) [2022-12-13 15:00:54,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 174 transitions. [2022-12-13 15:00:54,044 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 174 transitions. Word has length 30 [2022-12-13 15:00:54,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:54,044 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 174 transitions. [2022-12-13 15:00:54,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.176470588235294) internal successors, (54), 15 states have internal predecessors, (54), 9 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 15:00:54,045 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 174 transitions. [2022-12-13 15:00:54,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-13 15:00:54,045 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:54,045 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:00:54,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 15:00:54,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:00:54,248 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 15:00:54,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:54,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1184531600, now seen corresponding path program 2 times [2022-12-13 15:00:54,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:00:54,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103506661] [2022-12-13 15:00:54,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:54,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:00:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:54,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 15:00:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:54,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 15:00:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:54,466 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-12-13 15:00:54,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:00:54,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103506661] [2022-12-13 15:00:54,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103506661] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:00:54,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018796958] [2022-12-13 15:00:54,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:00:54,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:00:54,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:00:54,469 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:00:54,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 15:00:54,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 15:00:54,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:00:54,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 15:00:54,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:00:54,547 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-12-13 15:00:54,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:00:54,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018796958] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:00:54,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:00:54,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-12-13 15:00:54,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783132909] [2022-12-13 15:00:54,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:00:54,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:00:54,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:00:54,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:00:54,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:00:54,549 INFO L87 Difference]: Start difference. First operand 129 states and 174 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:00:54,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:54,578 INFO L93 Difference]: Finished difference Result 153 states and 210 transitions. [2022-12-13 15:00:54,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:00:54,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2022-12-13 15:00:54,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:54,582 INFO L225 Difference]: With dead ends: 153 [2022-12-13 15:00:54,582 INFO L226 Difference]: Without dead ends: 152 [2022-12-13 15:00:54,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:00:54,583 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:54,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 59 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:00:54,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-12-13 15:00:54,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 137. [2022-12-13 15:00:54,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 107 states have (on average 1.102803738317757) internal successors, (118), 107 states have internal predecessors, (118), 17 states have call successors, (17), 5 states have call predecessors, (17), 11 states have return successors, (55), 24 states have call predecessors, (55), 16 states have call successors, (55) [2022-12-13 15:00:54,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 190 transitions. [2022-12-13 15:00:54,607 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 190 transitions. Word has length 42 [2022-12-13 15:00:54,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:54,608 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 190 transitions. [2022-12-13 15:00:54,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:00:54,608 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 190 transitions. [2022-12-13 15:00:54,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-13 15:00:54,609 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:54,609 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:00:54,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 15:00:54,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:00:54,811 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 15:00:54,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:54,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1934226135, now seen corresponding path program 1 times [2022-12-13 15:00:54,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:00:54,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237059431] [2022-12-13 15:00:54,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:54,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:00:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:54,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 15:00:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:54,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 15:00:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:54,940 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-12-13 15:00:54,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:00:54,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237059431] [2022-12-13 15:00:54,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237059431] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:00:54,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319356224] [2022-12-13 15:00:54,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:54,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:00:54,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:00:54,942 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:00:54,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 15:00:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:54,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 15:00:54,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:00:55,101 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 12 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:00:55,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:00:55,283 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 15:00:55,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319356224] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:00:55,283 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:00:55,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 13] total 27 [2022-12-13 15:00:55,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134330412] [2022-12-13 15:00:55,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:00:55,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-13 15:00:55,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:00:55,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-13 15:00:55,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2022-12-13 15:00:55,285 INFO L87 Difference]: Start difference. First operand 137 states and 190 transitions. Second operand has 27 states, 25 states have (on average 3.08) internal successors, (77), 19 states have internal predecessors, (77), 13 states have call successors, (15), 10 states have call predecessors, (15), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 15:00:56,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:56,005 INFO L93 Difference]: Finished difference Result 458 states and 715 transitions. [2022-12-13 15:00:56,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 15:00:56,006 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 3.08) internal successors, (77), 19 states have internal predecessors, (77), 13 states have call successors, (15), 10 states have call predecessors, (15), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 43 [2022-12-13 15:00:56,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:56,010 INFO L225 Difference]: With dead ends: 458 [2022-12-13 15:00:56,010 INFO L226 Difference]: Without dead ends: 336 [2022-12-13 15:00:56,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=324, Invalid=1568, Unknown=0, NotChecked=0, Total=1892 [2022-12-13 15:00:56,014 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 281 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:56,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 571 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 15:00:56,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-12-13 15:00:56,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 295. [2022-12-13 15:00:56,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 232 states have (on average 1.0991379310344827) internal successors, (255), 232 states have internal predecessors, (255), 37 states have call successors, (37), 11 states have call predecessors, (37), 24 states have return successors, (109), 51 states have call predecessors, (109), 36 states have call successors, (109) [2022-12-13 15:00:56,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 401 transitions. [2022-12-13 15:00:56,037 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 401 transitions. Word has length 43 [2022-12-13 15:00:56,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:56,037 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 401 transitions. [2022-12-13 15:00:56,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 3.08) internal successors, (77), 19 states have internal predecessors, (77), 13 states have call successors, (15), 10 states have call predecessors, (15), 5 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-13 15:00:56,038 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 401 transitions. [2022-12-13 15:00:56,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-13 15:00:56,039 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:56,039 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:00:56,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 15:00:56,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 15:00:56,240 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 15:00:56,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:56,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1851857372, now seen corresponding path program 1 times [2022-12-13 15:00:56,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:00:56,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130745248] [2022-12-13 15:00:56,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:56,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:00:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:56,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 15:00:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:56,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:00:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:56,327 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-12-13 15:00:56,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:00:56,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130745248] [2022-12-13 15:00:56,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130745248] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:00:56,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:00:56,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:00:56,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234613735] [2022-12-13 15:00:56,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:00:56,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:00:56,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:00:56,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:00:56,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:00:56,329 INFO L87 Difference]: Start difference. First operand 295 states and 401 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:00:56,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:56,362 INFO L93 Difference]: Finished difference Result 311 states and 423 transitions. [2022-12-13 15:00:56,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:00:56,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-12-13 15:00:56,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:56,366 INFO L225 Difference]: With dead ends: 311 [2022-12-13 15:00:56,366 INFO L226 Difference]: Without dead ends: 310 [2022-12-13 15:00:56,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:00:56,367 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 4 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:56,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 80 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:00:56,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-12-13 15:00:56,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 302. [2022-12-13 15:00:56,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 238 states have (on average 1.096638655462185) internal successors, (261), 237 states have internal predecessors, (261), 38 states have call successors, (38), 11 states have call predecessors, (38), 24 states have return successors, (115), 53 states have call predecessors, (115), 37 states have call successors, (115) [2022-12-13 15:00:56,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 414 transitions. [2022-12-13 15:00:56,397 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 414 transitions. Word has length 74 [2022-12-13 15:00:56,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:56,398 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 414 transitions. [2022-12-13 15:00:56,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:00:56,398 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 414 transitions. [2022-12-13 15:00:56,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-13 15:00:56,402 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:56,402 INFO L195 NwaCegarLoop]: trace histogram [15, 13, 11, 11, 11, 11, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 15:00:56,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 15:00:56,402 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 15:00:56,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:56,403 INFO L85 PathProgramCache]: Analyzing trace with hash -792252904, now seen corresponding path program 1 times [2022-12-13 15:00:56,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:00:56,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902930772] [2022-12-13 15:00:56,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:56,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:00:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:56,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 15:00:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:56,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 15:00:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:56,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 15:00:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:56,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:00:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:56,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:00:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:56,498 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2022-12-13 15:00:56,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:00:56,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902930772] [2022-12-13 15:00:56,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902930772] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:00:56,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759520817] [2022-12-13 15:00:56,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:56,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:00:56,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:00:56,500 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:00:56,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 15:00:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:56,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-13 15:00:56,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:00:56,771 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 424 proven. 27 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 15:00:56,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:00:57,020 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 279 proven. 165 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-12-13 15:00:57,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759520817] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:00:57,020 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:00:57,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 23, 23] total 26 [2022-12-13 15:00:57,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450070666] [2022-12-13 15:00:57,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:00:57,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-13 15:00:57,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:00:57,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-13 15:00:57,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=510, Unknown=0, NotChecked=0, Total=650 [2022-12-13 15:00:57,023 INFO L87 Difference]: Start difference. First operand 302 states and 414 transitions. Second operand has 26 states, 25 states have (on average 3.56) internal successors, (89), 16 states have internal predecessors, (89), 13 states have call successors, (19), 12 states have call predecessors, (19), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2022-12-13 15:00:57,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:57,401 INFO L93 Difference]: Finished difference Result 587 states and 836 transitions. [2022-12-13 15:00:57,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 15:00:57,402 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.56) internal successors, (89), 16 states have internal predecessors, (89), 13 states have call successors, (19), 12 states have call predecessors, (19), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 106 [2022-12-13 15:00:57,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:57,405 INFO L225 Difference]: With dead ends: 587 [2022-12-13 15:00:57,405 INFO L226 Difference]: Without dead ends: 300 [2022-12-13 15:00:57,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 187 SyntacticMatches, 21 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=442, Invalid=1118, Unknown=0, NotChecked=0, Total=1560 [2022-12-13 15:00:57,409 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 440 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:57,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 151 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 15:00:57,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-12-13 15:00:57,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 275. [2022-12-13 15:00:57,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 216 states have (on average 1.0972222222222223) internal successors, (237), 217 states have internal predecessors, (237), 34 states have call successors, (34), 12 states have call predecessors, (34), 23 states have return successors, (69), 45 states have call predecessors, (69), 33 states have call successors, (69) [2022-12-13 15:00:57,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 340 transitions. [2022-12-13 15:00:57,423 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 340 transitions. Word has length 106 [2022-12-13 15:00:57,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:57,423 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 340 transitions. [2022-12-13 15:00:57,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.56) internal successors, (89), 16 states have internal predecessors, (89), 13 states have call successors, (19), 12 states have call predecessors, (19), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2022-12-13 15:00:57,423 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 340 transitions. [2022-12-13 15:00:57,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-13 15:00:57,425 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:57,425 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 9, 9, 9, 9, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 15:00:57,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 15:00:57,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:00:57,626 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 15:00:57,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:57,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1678908377, now seen corresponding path program 1 times [2022-12-13 15:00:57,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:00:57,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594432394] [2022-12-13 15:00:57,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:57,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:00:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:57,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 15:00:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:57,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:00:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:57,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 15:00:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:57,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:00:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:57,700 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 45 proven. 9 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-12-13 15:00:57,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:00:57,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594432394] [2022-12-13 15:00:57,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594432394] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:00:57,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467310283] [2022-12-13 15:00:57,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:57,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:00:57,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:00:57,702 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:00:57,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 15:00:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:57,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-13 15:00:57,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:00:57,985 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 46 proven. 254 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 15:00:57,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:00:58,272 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 9 proven. 286 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 15:00:58,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467310283] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:00:58,273 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:00:58,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 22, 23] total 27 [2022-12-13 15:00:58,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810436340] [2022-12-13 15:00:58,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:00:58,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-13 15:00:58,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:00:58,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-13 15:00:58,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=550, Unknown=0, NotChecked=0, Total=702 [2022-12-13 15:00:58,275 INFO L87 Difference]: Start difference. First operand 275 states and 340 transitions. Second operand has 27 states, 26 states have (on average 3.423076923076923) internal successors, (89), 19 states have internal predecessors, (89), 15 states have call successors, (17), 10 states have call predecessors, (17), 4 states have return successors, (8), 2 states have call predecessors, (8), 7 states have call successors, (8) [2022-12-13 15:00:58,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:58,650 INFO L93 Difference]: Finished difference Result 524 states and 683 transitions. [2022-12-13 15:00:58,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 15:00:58,651 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.423076923076923) internal successors, (89), 19 states have internal predecessors, (89), 15 states have call successors, (17), 10 states have call predecessors, (17), 4 states have return successors, (8), 2 states have call predecessors, (8), 7 states have call successors, (8) Word has length 86 [2022-12-13 15:00:58,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:58,653 INFO L225 Difference]: With dead ends: 524 [2022-12-13 15:00:58,653 INFO L226 Difference]: Without dead ends: 210 [2022-12-13 15:00:58,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 150 SyntacticMatches, 19 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=365, Invalid=1117, Unknown=0, NotChecked=0, Total=1482 [2022-12-13 15:00:58,656 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 331 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:58,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 418 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 15:00:58,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-12-13 15:00:58,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 184. [2022-12-13 15:00:58,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 145 states have (on average 1.1586206896551725) internal successors, (168), 147 states have internal predecessors, (168), 23 states have call successors, (23), 12 states have call predecessors, (23), 14 states have return successors, (26), 24 states have call predecessors, (26), 22 states have call successors, (26) [2022-12-13 15:00:58,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 217 transitions. [2022-12-13 15:00:58,664 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 217 transitions. Word has length 86 [2022-12-13 15:00:58,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:58,664 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 217 transitions. [2022-12-13 15:00:58,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.423076923076923) internal successors, (89), 19 states have internal predecessors, (89), 15 states have call successors, (17), 10 states have call predecessors, (17), 4 states have return successors, (8), 2 states have call predecessors, (8), 7 states have call successors, (8) [2022-12-13 15:00:58,664 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 217 transitions. [2022-12-13 15:00:58,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-13 15:00:58,665 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:58,665 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 9, 9, 9, 9, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 15:00:58,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 15:00:58,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:00:58,866 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 15:00:58,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:58,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1960483716, now seen corresponding path program 2 times [2022-12-13 15:00:58,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:00:58,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280826385] [2022-12-13 15:00:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:58,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:00:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:58,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 15:00:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:58,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:00:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:59,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:00:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:59,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 15:00:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:59,027 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-12-13 15:00:59,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:00:59,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280826385] [2022-12-13 15:00:59,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280826385] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:00:59,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875060735] [2022-12-13 15:00:59,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:00:59,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:00:59,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:00:59,028 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:00:59,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 15:00:59,067 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 15:00:59,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:00:59,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 15:00:59,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:00:59,116 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2022-12-13 15:00:59,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:00:59,226 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-12-13 15:00:59,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875060735] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:00:59,226 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:00:59,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2022-12-13 15:00:59,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365165843] [2022-12-13 15:00:59,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:00:59,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 15:00:59,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:00:59,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 15:00:59,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-12-13 15:00:59,228 INFO L87 Difference]: Start difference. First operand 184 states and 217 transitions. Second operand has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-13 15:00:59,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:59,291 INFO L93 Difference]: Finished difference Result 187 states and 217 transitions. [2022-12-13 15:00:59,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 15:00:59,292 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2022-12-13 15:00:59,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:59,293 INFO L225 Difference]: With dead ends: 187 [2022-12-13 15:00:59,293 INFO L226 Difference]: Without dead ends: 186 [2022-12-13 15:00:59,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 175 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2022-12-13 15:00:59,295 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 6 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:59,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 105 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:00:59,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-12-13 15:00:59,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 184. [2022-12-13 15:00:59,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 145 states have (on average 1.1379310344827587) internal successors, (165), 147 states have internal predecessors, (165), 23 states have call successors, (23), 12 states have call predecessors, (23), 14 states have return successors, (26), 24 states have call predecessors, (26), 22 states have call successors, (26) [2022-12-13 15:00:59,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 214 transitions. [2022-12-13 15:00:59,302 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 214 transitions. Word has length 87 [2022-12-13 15:00:59,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:59,302 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 214 transitions. [2022-12-13 15:00:59,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-13 15:00:59,302 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 214 transitions. [2022-12-13 15:00:59,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-13 15:00:59,303 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:59,303 INFO L195 NwaCegarLoop]: trace histogram [14, 12, 10, 10, 10, 10, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2022-12-13 15:00:59,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-13 15:00:59,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 15:00:59,504 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 15:00:59,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:59,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1362817587, now seen corresponding path program 2 times [2022-12-13 15:00:59,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:00:59,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214360187] [2022-12-13 15:00:59,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:59,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:00:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:59,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 15:00:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:59,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:00:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:59,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:00:59,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:59,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 15:00:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:59,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:00:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:59,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:00:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:59,829 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 201 proven. 183 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 15:00:59,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:00:59,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214360187] [2022-12-13 15:00:59,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214360187] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:00:59,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388660019] [2022-12-13 15:00:59,829 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:00:59,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:00:59,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:00:59,831 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:00:59,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 15:00:59,868 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 15:00:59,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:00:59,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 15:00:59,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:00:59,949 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2022-12-13 15:00:59,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:01:00,098 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 2 proven. 31 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-12-13 15:01:00,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388660019] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:01:00,098 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:01:00,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 6, 5] total 31 [2022-12-13 15:01:00,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384706808] [2022-12-13 15:01:00,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:01:00,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-13 15:01:00,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:01:00,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-13 15:01:00,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=800, Unknown=0, NotChecked=0, Total=930 [2022-12-13 15:01:00,101 INFO L87 Difference]: Start difference. First operand 184 states and 214 transitions. Second operand has 31 states, 30 states have (on average 3.1666666666666665) internal successors, (95), 23 states have internal predecessors, (95), 13 states have call successors, (17), 9 states have call predecessors, (17), 4 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) [2022-12-13 15:01:01,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:01:01,066 INFO L93 Difference]: Finished difference Result 318 states and 366 transitions. [2022-12-13 15:01:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-12-13 15:01:01,067 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.1666666666666665) internal successors, (95), 23 states have internal predecessors, (95), 13 states have call successors, (17), 9 states have call predecessors, (17), 4 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) Word has length 105 [2022-12-13 15:01:01,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:01:01,068 INFO L225 Difference]: With dead ends: 318 [2022-12-13 15:01:01,068 INFO L226 Difference]: Without dead ends: 178 [2022-12-13 15:01:01,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 216 SyntacticMatches, 3 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1332 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1575, Invalid=4745, Unknown=0, NotChecked=0, Total=6320 [2022-12-13 15:01:01,071 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 421 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:01:01,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 56 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 15:01:01,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-12-13 15:01:01,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 173. [2022-12-13 15:01:01,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 137 states have (on average 1.0583941605839415) internal successors, (145), 138 states have internal predecessors, (145), 23 states have call successors, (23), 12 states have call predecessors, (23), 12 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-12-13 15:01:01,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 190 transitions. [2022-12-13 15:01:01,081 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 190 transitions. Word has length 105 [2022-12-13 15:01:01,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:01:01,082 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 190 transitions. [2022-12-13 15:01:01,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.1666666666666665) internal successors, (95), 23 states have internal predecessors, (95), 13 states have call successors, (17), 9 states have call predecessors, (17), 4 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) [2022-12-13 15:01:01,082 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 190 transitions. [2022-12-13 15:01:01,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-12-13 15:01:01,084 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:01:01,084 INFO L195 NwaCegarLoop]: trace histogram [20, 17, 14, 12, 12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 3, 1, 1, 1, 1] [2022-12-13 15:01:01,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 15:01:01,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:01:01,286 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 15:01:01,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:01,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1594459055, now seen corresponding path program 3 times [2022-12-13 15:01:01,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:01,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947448150] [2022-12-13 15:01:01,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:01,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:01,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:01:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:01,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:01,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:01,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:01,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:01,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:01,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:01:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:01,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:01,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:01,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 15:01:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:01,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:01,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:01,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:01,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:01,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 78 proven. 135 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2022-12-13 15:01:01,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:01:01,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947448150] [2022-12-13 15:01:01,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947448150] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:01:01,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717201604] [2022-12-13 15:01:01,799 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 15:01:01,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:01:01,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:01,800 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:01:01,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 15:01:01,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-12-13 15:01:01,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:01:01,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-13 15:01:01,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:02,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 78 proven. 135 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2022-12-13 15:01:02,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:01:02,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 144 proven. 128 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2022-12-13 15:01:02,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717201604] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:01:02,878 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:01:02,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 17] total 26 [2022-12-13 15:01:02,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071041818] [2022-12-13 15:01:02,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:01:02,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-13 15:01:02,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:01:02,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-13 15:01:02,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2022-12-13 15:01:02,881 INFO L87 Difference]: Start difference. First operand 173 states and 190 transitions. Second operand has 27 states, 26 states have (on average 2.730769230769231) internal successors, (71), 27 states have internal predecessors, (71), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2022-12-13 15:01:02,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:01:02,940 INFO L93 Difference]: Finished difference Result 174 states and 190 transitions. [2022-12-13 15:01:02,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 15:01:02,941 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.730769230769231) internal successors, (71), 27 states have internal predecessors, (71), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) Word has length 173 [2022-12-13 15:01:02,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:01:02,942 INFO L225 Difference]: With dead ends: 174 [2022-12-13 15:01:02,942 INFO L226 Difference]: Without dead ends: 173 [2022-12-13 15:01:02,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 360 SyntacticMatches, 16 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2022-12-13 15:01:02,944 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:01:02,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 96 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:01:02,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-12-13 15:01:02,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-12-13 15:01:02,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 137 states have (on average 1.0364963503649636) internal successors, (142), 138 states have internal predecessors, (142), 23 states have call successors, (23), 12 states have call predecessors, (23), 12 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-12-13 15:01:02,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 187 transitions. [2022-12-13 15:01:02,950 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 187 transitions. Word has length 173 [2022-12-13 15:01:02,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:01:02,950 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 187 transitions. [2022-12-13 15:01:02,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.730769230769231) internal successors, (71), 27 states have internal predecessors, (71), 7 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2022-12-13 15:01:02,950 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 187 transitions. [2022-12-13 15:01:02,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2022-12-13 15:01:02,962 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:01:02,962 INFO L195 NwaCegarLoop]: trace histogram [44, 40, 36, 23, 23, 23, 23, 20, 20, 20, 20, 20, 20, 20, 20, 19, 13, 8, 1, 1, 1, 1] [2022-12-13 15:01:02,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 15:01:03,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:01:03,164 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 15:01:03,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:03,166 INFO L85 PathProgramCache]: Analyzing trace with hash -588413607, now seen corresponding path program 4 times [2022-12-13 15:01:03,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:03,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455665901] [2022-12-13 15:01:03,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:03,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:04,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 15:01:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:04,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:04,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:04,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:04,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:04,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:04,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:04,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:04,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:01:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:04,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:04,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:04,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:01:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 15:01:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:01:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-12-13 15:01:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:01:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:01:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:05,412 INFO L134 CoverageAnalysis]: Checked inductivity of 6171 backedges. 820 proven. 1112 refuted. 0 times theorem prover too weak. 4239 trivial. 0 not checked. [2022-12-13 15:01:05,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:01:05,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455665901] [2022-12-13 15:01:05,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455665901] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:01:05,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458020606] [2022-12-13 15:01:05,413 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 15:01:05,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:01:05,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:05,414 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:01:05,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 15:01:05,539 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 15:01:05,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:01:05,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 81 conjunts are in the unsatisfiable core [2022-12-13 15:01:05,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 6171 backedges. 820 proven. 1112 refuted. 0 times theorem prover too weak. 4239 trivial. 0 not checked. [2022-12-13 15:01:05,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:01:10,704 INFO L134 CoverageAnalysis]: Checked inductivity of 6171 backedges. 1149 proven. 1015 refuted. 0 times theorem prover too weak. 4007 trivial. 0 not checked. [2022-12-13 15:01:10,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458020606] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:01:10,705 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:01:10,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 29] total 40 [2022-12-13 15:01:10,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234269912] [2022-12-13 15:01:10,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:01:10,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-12-13 15:01:10,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:01:10,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-12-13 15:01:10,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1273, Unknown=0, NotChecked=0, Total=1640 [2022-12-13 15:01:10,708 INFO L87 Difference]: Start difference. First operand 173 states and 187 transitions. Second operand has 41 states, 40 states have (on average 2.625) internal successors, (105), 41 states have internal predecessors, (105), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2022-12-13 15:01:10,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:01:10,782 INFO L93 Difference]: Finished difference Result 174 states and 187 transitions. [2022-12-13 15:01:10,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 15:01:10,782 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.625) internal successors, (105), 41 states have internal predecessors, (105), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) Word has length 416 [2022-12-13 15:01:10,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:01:10,783 INFO L225 Difference]: With dead ends: 174 [2022-12-13 15:01:10,783 INFO L226 Difference]: Without dead ends: 173 [2022-12-13 15:01:10,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 992 GetRequests, 890 SyntacticMatches, 62 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2223 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=381, Invalid=1341, Unknown=0, NotChecked=0, Total=1722 [2022-12-13 15:01:10,784 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 8 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:01:10,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 201 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:01:10,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-12-13 15:01:10,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-12-13 15:01:10,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 137 states have (on average 1.0145985401459854) internal successors, (139), 138 states have internal predecessors, (139), 23 states have call successors, (23), 12 states have call predecessors, (23), 12 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-12-13 15:01:10,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 184 transitions. [2022-12-13 15:01:10,790 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 184 transitions. Word has length 416 [2022-12-13 15:01:10,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:01:10,791 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 184 transitions. [2022-12-13 15:01:10,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.625) internal successors, (105), 41 states have internal predecessors, (105), 11 states have call successors, (12), 1 states have call predecessors, (12), 11 states have return successors, (28), 28 states have call predecessors, (28), 11 states have call successors, (28) [2022-12-13 15:01:10,791 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 184 transitions. [2022-12-13 15:01:10,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2022-12-13 15:01:10,816 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:01:10,816 INFO L195 NwaCegarLoop]: trace histogram [110, 108, 89, 55, 55, 55, 55, 54, 54, 54, 54, 54, 54, 54, 54, 53, 34, 21, 1, 1, 1, 1] [2022-12-13 15:01:10,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 15:01:11,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:01:11,017 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 15:01:11,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:11,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1903056264, now seen corresponding path program 5 times [2022-12-13 15:01:11,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:11,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121742260] [2022-12-13 15:01:11,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:11,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:01:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:16,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:18,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:18,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:18,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:18,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:01:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:01:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 15:01:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:01:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-12-13 15:01:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:01:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:01:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-12-13 15:01:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:01:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:01:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 15:01:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:01:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:19,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2022-12-13 15:01:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:01:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:01:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 15:01:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:01:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:20,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-12-13 15:01:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:21,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:21,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:21,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:21,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:21,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:21,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:21,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:21,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:01:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:21,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:21,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:21,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:01:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:21,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:21,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 15:01:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:21,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 15:01:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:21,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 15:01:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:21,164 INFO L134 CoverageAnalysis]: Checked inductivity of 41934 backedges. 6686 proven. 7855 refuted. 0 times theorem prover too weak. 27393 trivial. 0 not checked. [2022-12-13 15:01:21,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:01:21,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121742260] [2022-12-13 15:01:21,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121742260] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:01:21,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267692805] [2022-12-13 15:01:21,165 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 15:01:21,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:01:21,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:01:21,166 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:01:21,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 15:01:21,562 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 76 check-sat command(s) [2022-12-13 15:01:21,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:01:21,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 2002 conjuncts, 217 conjunts are in the unsatisfiable core [2022-12-13 15:01:21,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:22,389 INFO L134 CoverageAnalysis]: Checked inductivity of 41934 backedges. 6686 proven. 7855 refuted. 0 times theorem prover too weak. 27393 trivial. 0 not checked. [2022-12-13 15:01:22,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:01:50,928 INFO L134 CoverageAnalysis]: Checked inductivity of 41934 backedges. 7863 proven. 7392 refuted. 0 times theorem prover too weak. 26679 trivial. 0 not checked. [2022-12-13 15:01:50,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267692805] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:01:50,928 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:01:50,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 41] total 54 [2022-12-13 15:01:50,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795249420] [2022-12-13 15:01:50,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:01:50,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-12-13 15:01:50,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:01:50,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-12-13 15:01:50,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=642, Invalid=2328, Unknown=0, NotChecked=0, Total=2970 [2022-12-13 15:01:50,933 INFO L87 Difference]: Start difference. First operand 173 states and 184 transitions. Second operand has 55 states, 54 states have (on average 2.574074074074074) internal successors, (139), 55 states have internal predecessors, (139), 15 states have call successors, (16), 1 states have call predecessors, (16), 15 states have return successors, (38), 38 states have call predecessors, (38), 15 states have call successors, (38) [2022-12-13 15:01:51,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:01:51,022 INFO L93 Difference]: Finished difference Result 173 states and 184 transitions. [2022-12-13 15:01:51,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-13 15:01:51,023 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 2.574074074074074) internal successors, (139), 55 states have internal predecessors, (139), 15 states have call successors, (16), 1 states have call predecessors, (16), 15 states have return successors, (38), 38 states have call predecessors, (38), 15 states have call successors, (38) Word has length 1071 [2022-12-13 15:01:51,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:01:51,025 INFO L225 Difference]: With dead ends: 173 [2022-12-13 15:01:51,025 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 15:01:51,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2574 GetRequests, 2328 SyntacticMatches, 192 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7409 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=660, Invalid=2420, Unknown=0, NotChecked=0, Total=3080 [2022-12-13 15:01:51,026 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 6 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:01:51,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 207 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:01:51,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 15:01:51,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 15:01:51,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:01:51,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 15:01:51,027 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1071 [2022-12-13 15:01:51,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:01:51,027 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 15:01:51,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 2.574074074074074) internal successors, (139), 55 states have internal predecessors, (139), 15 states have call successors, (16), 1 states have call predecessors, (16), 15 states have return successors, (38), 38 states have call predecessors, (38), 15 states have call successors, (38) [2022-12-13 15:01:51,027 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 15:01:51,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 15:01:51,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-13 15:01:51,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-13 15:01:51,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-13 15:01:51,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fiboErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-13 15:01:51,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-13 15:01:51,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-13 15:01:51,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-13 15:01:51,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:01:51,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 15:01:51,813 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 15:01:51,813 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 15:01:51,813 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-12-13 15:01:51,813 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 15:01:51,813 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 30) no Hoare annotation was computed. [2022-12-13 15:01:51,814 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 10) (<= 10 |ULTIMATE.start_main_~x~0#1|)) [2022-12-13 15:01:51,814 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-12-13 15:01:51,814 INFO L899 garLoopResultBuilder]: For program point L28-2(lines 28 30) no Hoare annotation was computed. [2022-12-13 15:01:51,814 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 15:01:51,814 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 25 32) the Hoare annotation is: true [2022-12-13 15:01:51,814 INFO L899 garLoopResultBuilder]: For program point fiboErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2022-12-13 15:01:51,814 INFO L899 garLoopResultBuilder]: For program point fiboErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2022-12-13 15:01:51,814 INFO L899 garLoopResultBuilder]: For program point fiboErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2022-12-13 15:01:51,814 INFO L899 garLoopResultBuilder]: For program point fiboFINAL(lines 7 15) no Hoare annotation was computed. [2022-12-13 15:01:51,814 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-12-13 15:01:51,814 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-12-13 15:01:51,815 INFO L895 garLoopResultBuilder]: At program point L13-2(line 13) the Hoare annotation is: (and (or (and (<= fibo_~n 10) (<= 10 fibo_~n)) (not (<= |fibo_#in~n| 10)) (not (<= 10 |fibo_#in~n|))) (or (= fibo_~n |fibo_#in~n|) (not (<= |fibo_#in~n| 9))) (or (< 1 fibo_~n) (not (<= |fibo_#in~n| 2)))) [2022-12-13 15:01:51,815 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2022-12-13 15:01:51,815 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7 15) the Hoare annotation is: true [2022-12-13 15:01:51,815 INFO L899 garLoopResultBuilder]: For program point L13-4(line 13) no Hoare annotation was computed. [2022-12-13 15:01:51,815 INFO L899 garLoopResultBuilder]: For program point L13-5(line 13) no Hoare annotation was computed. [2022-12-13 15:01:51,815 INFO L895 garLoopResultBuilder]: At program point L13-6(line 13) the Hoare annotation is: (let ((.cse0 (<= 1 |fibo_#t~ret4|))) (and (or (not (<= |fibo_#in~n| 4)) (<= |fibo_#t~ret4| 2)) (or (not (<= |fibo_#in~n| 8)) (<= |fibo_#t~ret4| 13)) (or (not (<= |fibo_#in~n| 3)) (= |fibo_#t~ret4| 1)) (or (and (= fibo_~n |fibo_#in~n|) .cse0 (<= |fibo_#t~ret4| 21)) (not (<= |fibo_#in~n| 9))) (or (not (<= |fibo_#in~n| 5)) (<= |fibo_#t~ret4| 3)) (or (and (<= fibo_~n 10) (<= 10 fibo_~n) .cse0 (< |fibo_#t~ret4| 2147483615)) (not (<= |fibo_#in~n| 10)) (not (<= 10 |fibo_#in~n|))) (or (<= |fibo_#t~ret4| 5) (not (<= |fibo_#in~n| 6))) (or (<= |fibo_#t~ret4| 8) (not (<= |fibo_#in~n| 7))) (or (< 1 fibo_~n) (not (<= |fibo_#in~n| 2))))) [2022-12-13 15:01:51,815 INFO L899 garLoopResultBuilder]: For program point L13-7(line 13) no Hoare annotation was computed. [2022-12-13 15:01:51,816 INFO L899 garLoopResultBuilder]: For program point L13-8(line 13) no Hoare annotation was computed. [2022-12-13 15:01:51,816 INFO L899 garLoopResultBuilder]: For program point L13-9(line 13) no Hoare annotation was computed. [2022-12-13 15:01:51,816 INFO L899 garLoopResultBuilder]: For program point fiboEXIT(lines 7 15) no Hoare annotation was computed. [2022-12-13 15:01:51,816 INFO L899 garLoopResultBuilder]: For program point fiboErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2022-12-13 15:01:51,816 INFO L899 garLoopResultBuilder]: For program point fiboErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2022-12-13 15:01:51,816 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 14) no Hoare annotation was computed. [2022-12-13 15:01:51,816 INFO L899 garLoopResultBuilder]: For program point L8(lines 8 14) no Hoare annotation was computed. [2022-12-13 15:01:51,816 INFO L899 garLoopResultBuilder]: For program point fiboErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2022-12-13 15:01:51,818 INFO L445 BasicCegarLoop]: Path program histogram: [5, 2, 2, 1, 1, 1, 1, 1] [2022-12-13 15:01:51,820 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:01:51,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:01:51 BoogieIcfgContainer [2022-12-13 15:01:51,825 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:01:51,825 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:01:51,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:01:51,825 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:01:51,826 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:00:52" (3/4) ... [2022-12-13 15:01:51,828 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 15:01:51,832 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo [2022-12-13 15:01:51,834 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-13 15:01:51,834 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 15:01:51,834 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 15:01:51,834 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 15:01:51,853 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:01:51,853 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:01:51,853 INFO L158 Benchmark]: Toolchain (without parser) took 59700.66ms. Allocated memory was 161.5MB in the beginning and 589.3MB in the end (delta: 427.8MB). Free memory was 126.8MB in the beginning and 332.3MB in the end (delta: -205.5MB). Peak memory consumption was 225.3MB. Max. memory is 16.1GB. [2022-12-13 15:01:51,854 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 115.3MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:01:51,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 142.73ms. Allocated memory is still 161.5MB. Free memory was 126.6MB in the beginning and 117.0MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 15:01:51,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.29ms. Allocated memory is still 161.5MB. Free memory was 116.4MB in the beginning and 115.5MB in the end (delta: 892.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:01:51,854 INFO L158 Benchmark]: Boogie Preprocessor took 11.24ms. Allocated memory is still 161.5MB. Free memory was 115.5MB in the beginning and 114.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:01:51,854 INFO L158 Benchmark]: RCFGBuilder took 180.97ms. Allocated memory is still 161.5MB. Free memory was 114.2MB in the beginning and 104.4MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 15:01:51,854 INFO L158 Benchmark]: TraceAbstraction took 59312.86ms. Allocated memory was 161.5MB in the beginning and 589.3MB in the end (delta: 427.8MB). Free memory was 103.8MB in the beginning and 335.4MB in the end (delta: -231.6MB). Peak memory consumption was 198.0MB. Max. memory is 16.1GB. [2022-12-13 15:01:51,855 INFO L158 Benchmark]: Witness Printer took 27.89ms. Allocated memory is still 589.3MB. Free memory was 335.4MB in the beginning and 332.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 15:01:51,856 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 115.3MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 142.73ms. Allocated memory is still 161.5MB. Free memory was 126.6MB in the beginning and 117.0MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.29ms. Allocated memory is still 161.5MB. Free memory was 116.4MB in the beginning and 115.5MB in the end (delta: 892.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.24ms. Allocated memory is still 161.5MB. Free memory was 115.5MB in the beginning and 114.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 180.97ms. Allocated memory is still 161.5MB. Free memory was 114.2MB in the beginning and 104.4MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 59312.86ms. Allocated memory was 161.5MB in the beginning and 589.3MB in the end (delta: 427.8MB). Free memory was 103.8MB in the beginning and 335.4MB in the end (delta: -231.6MB). Peak memory consumption was 198.0MB. Max. memory is 16.1GB. * Witness Printer took 27.89ms. Allocated memory is still 589.3MB. Free memory was 335.4MB in the beginning and 332.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 59.3s, OverallIterations: 14, TraceHistogramMax: 110, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.1s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1771 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1750 mSDsluCounter, 2315 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1898 mSDsCounter, 676 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3904 IncrementalHoareTripleChecker+Invalid, 4580 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 676 mSolverCounterUnsat, 417 mSDtfsCounter, 3904 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5186 GetRequests, 4496 SyntacticMatches, 317 SemanticMatches, 373 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13104 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=302occurred in iteration=7, InterpolantAutomatonStates: 260, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 145 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 395 PreInvPairs, 449 NumberOfFragments, 136 HoareAnnotationTreeSize, 395 FomulaSimplifications, 2424 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 1219 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 51.5s InterpolantComputationTime, 4436 NumberOfCodeBlocks, 4400 NumberOfCodeBlocksAsserted, 113 NumberOfCheckSat, 6520 ConstructedInterpolants, 0 QuantifiedInterpolants, 15356 SizeOfPredicates, 29 NumberOfNonLiveVariables, 4131 ConjunctsInSsa, 412 ConjunctsInUnsatCore, 33 InterpolantComputations, 5 PerfectInterpolantSequences, 124808/152708 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-13 15:01:51,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5cc4ac6-6535-4413-a243-d9eeebfe6739/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE