./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/byte_add-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/byte_add-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac64f5b077f8251002b0bb05f1aba070a52d8bbef53fa94e35704949c96b0f7c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:30:41,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:30:41,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:30:41,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:30:41,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:30:41,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:30:41,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:30:41,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:30:41,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:30:41,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:30:41,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:30:42,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:30:42,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:30:42,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:30:42,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:30:42,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:30:42,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:30:42,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:30:42,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:30:42,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:30:42,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:30:42,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:30:42,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:30:42,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:30:42,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:30:42,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:30:42,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:30:42,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:30:42,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:30:42,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:30:42,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:30:42,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:30:42,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:30:42,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:30:42,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:30:42,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:30:42,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:30:42,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:30:42,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:30:42,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:30:42,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:30:42,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 13:30:42,031 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:30:42,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:30:42,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:30:42,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:30:42,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:30:42,037 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:30:42,037 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:30:42,037 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:30:42,037 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:30:42,037 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:30:42,038 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:30:42,038 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:30:42,038 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:30:42,038 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:30:42,038 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:30:42,038 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:30:42,039 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:30:42,039 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:30:42,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:30:42,039 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:30:42,040 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:30:42,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:30:42,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:30:42,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:30:42,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:30:42,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:30:42,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:30:42,041 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:30:42,041 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:30:42,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:30:42,041 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:30:42,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:30:42,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:30:42,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:30:42,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:30:42,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:30:42,042 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:30:42,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:30:42,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:30:42,043 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:30:42,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:30:42,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:30:42,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:30:42,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac64f5b077f8251002b0bb05f1aba070a52d8bbef53fa94e35704949c96b0f7c [2022-12-14 13:30:42,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:30:42,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:30:42,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:30:42,231 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:30:42,231 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:30:42,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/bitvector/byte_add-2.i [2022-12-14 13:30:44,797 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:30:44,921 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:30:44,921 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/sv-benchmarks/c/bitvector/byte_add-2.i [2022-12-14 13:30:44,926 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/data/9483fe504/7007995bab954aa8ad5c480e99d16cb0/FLAGa63488a2c [2022-12-14 13:30:44,937 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/data/9483fe504/7007995bab954aa8ad5c480e99d16cb0 [2022-12-14 13:30:44,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:30:44,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:30:44,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:30:44,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:30:44,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:30:44,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:30:44" (1/1) ... [2022-12-14 13:30:44,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1283981c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:30:44, skipping insertion in model container [2022-12-14 13:30:44,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:30:44" (1/1) ... [2022-12-14 13:30:44,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:30:44,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:30:45,079 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_a5179305-21ee-471b-9a78-0ef9d197d43e/sv-benchmarks/c/bitvector/byte_add-2.i[1166,1179] [2022-12-14 13:30:45,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:30:45,112 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:30:45,121 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_a5179305-21ee-471b-9a78-0ef9d197d43e/sv-benchmarks/c/bitvector/byte_add-2.i[1166,1179] [2022-12-14 13:30:45,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:30:45,147 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:30:45,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:30:45 WrapperNode [2022-12-14 13:30:45,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:30:45,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:30:45,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:30:45,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:30:45,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:30:45" (1/1) ... [2022-12-14 13:30:45,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:30:45" (1/1) ... [2022-12-14 13:30:45,184 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 183 [2022-12-14 13:30:45,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:30:45,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:30:45,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:30:45,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:30:45,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:30:45" (1/1) ... [2022-12-14 13:30:45,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:30:45" (1/1) ... [2022-12-14 13:30:45,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:30:45" (1/1) ... [2022-12-14 13:30:45,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:30:45" (1/1) ... [2022-12-14 13:30:45,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:30:45" (1/1) ... [2022-12-14 13:30:45,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:30:45" (1/1) ... [2022-12-14 13:30:45,206 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:30:45" (1/1) ... [2022-12-14 13:30:45,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:30:45" (1/1) ... [2022-12-14 13:30:45,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:30:45,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:30:45,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:30:45,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:30:45,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:30:45" (1/1) ... [2022-12-14 13:30:45,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:30:45,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:30:45,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:30:45,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:30:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:30:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:30:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:30:45,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:30:45,322 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:30:45,324 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:30:45,699 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:30:45,835 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:30:45,835 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 13:30:45,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:30:45 BoogieIcfgContainer [2022-12-14 13:30:45,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:30:45,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:30:45,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:30:45,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:30:45,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:30:44" (1/3) ... [2022-12-14 13:30:45,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f5831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:30:45, skipping insertion in model container [2022-12-14 13:30:45,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:30:45" (2/3) ... [2022-12-14 13:30:45,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f5831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:30:45, skipping insertion in model container [2022-12-14 13:30:45,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:30:45" (3/3) ... [2022-12-14 13:30:45,843 INFO L112 eAbstractionObserver]: Analyzing ICFG byte_add-2.i [2022-12-14 13:30:45,857 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:30:45,857 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2022-12-14 13:30:45,894 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:30:45,899 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@48562d2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:30:45,900 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2022-12-14 13:30:45,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 63 states have (on average 1.9365079365079365) internal successors, (122), 104 states have internal predecessors, (122), 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) [2022-12-14 13:30:45,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 13:30:45,907 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:30:45,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 13:30:45,908 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:30:45,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:30:45,912 INFO L85 PathProgramCache]: Analyzing trace with hash 320174, now seen corresponding path program 1 times [2022-12-14 13:30:45,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:30:45,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72477018] [2022-12-14 13:30:45,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:45,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:30:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:46,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:46,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:30:46,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72477018] [2022-12-14 13:30:46,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72477018] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:30:46,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:30:46,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 13:30:46,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209204652] [2022-12-14 13:30:46,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:30:46,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:30:46,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:30:46,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:30:46,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:30:46,062 INFO L87 Difference]: Start difference. First operand has 105 states, 63 states have (on average 1.9365079365079365) internal successors, (122), 104 states have internal predecessors, (122), 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) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-12-14 13:30:46,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:30:46,096 INFO L93 Difference]: Finished difference Result 105 states and 122 transitions. [2022-12-14 13:30:46,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:30:46,098 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2022-12-14 13:30:46,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:30:46,104 INFO L225 Difference]: With dead ends: 105 [2022-12-14 13:30:46,104 INFO L226 Difference]: Without dead ends: 64 [2022-12-14 13:30:46,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:30:46,109 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:30:46,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:30:46,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-12-14 13:30:46,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-12-14 13:30:46,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 63 states have internal predecessors, (81), 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) [2022-12-14 13:30:46,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2022-12-14 13:30:46,136 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 3 [2022-12-14 13:30:46,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:30:46,136 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2022-12-14 13:30:46,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-12-14 13:30:46,137 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2022-12-14 13:30:46,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 13:30:46,137 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:30:46,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:30:46,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:30:46,138 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:30:46,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:30:46,138 INFO L85 PathProgramCache]: Analyzing trace with hash -926178572, now seen corresponding path program 1 times [2022-12-14 13:30:46,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:30:46,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234288738] [2022-12-14 13:30:46,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:46,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:30:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:46,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:46,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:30:46,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234288738] [2022-12-14 13:30:46,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234288738] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:30:46,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:30:46,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:30:46,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747353066] [2022-12-14 13:30:46,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:30:46,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:30:46,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:30:46,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:30:46,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:30:46,244 INFO L87 Difference]: Start difference. First operand 64 states and 81 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-12-14 13:30:46,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:30:46,326 INFO L93 Difference]: Finished difference Result 128 states and 168 transitions. [2022-12-14 13:30:46,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:30:46,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) Word has length 16 [2022-12-14 13:30:46,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:30:46,327 INFO L225 Difference]: With dead ends: 128 [2022-12-14 13:30:46,327 INFO L226 Difference]: Without dead ends: 85 [2022-12-14 13:30:46,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:30:46,328 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 21 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:30:46,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 113 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:30:46,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-12-14 13:30:46,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 80. [2022-12-14 13:30:46,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.2658227848101267) internal successors, (100), 79 states have internal predecessors, (100), 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) [2022-12-14 13:30:46,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 100 transitions. [2022-12-14 13:30:46,334 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 100 transitions. Word has length 16 [2022-12-14 13:30:46,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:30:46,335 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 100 transitions. [2022-12-14 13:30:46,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-12-14 13:30:46,335 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 100 transitions. [2022-12-14 13:30:46,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 13:30:46,335 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:30:46,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:30:46,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:30:46,336 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:30:46,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:30:46,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1477758196, now seen corresponding path program 1 times [2022-12-14 13:30:46,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:30:46,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30164004] [2022-12-14 13:30:46,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:46,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:30:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:46,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:46,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:30:46,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30164004] [2022-12-14 13:30:46,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30164004] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:30:46,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:30:46,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:30:46,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367588180] [2022-12-14 13:30:46,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:30:46,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:30:46,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:30:46,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:30:46,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:30:46,491 INFO L87 Difference]: Start difference. First operand 80 states and 100 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2022-12-14 13:30:46,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:30:46,660 INFO L93 Difference]: Finished difference Result 119 states and 152 transitions. [2022-12-14 13:30:46,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 13:30:46,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) Word has length 19 [2022-12-14 13:30:46,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:30:46,662 INFO L225 Difference]: With dead ends: 119 [2022-12-14 13:30:46,662 INFO L226 Difference]: Without dead ends: 103 [2022-12-14 13:30:46,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 13:30:46,664 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 92 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:30:46,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 199 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:30:46,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-12-14 13:30:46,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 77. [2022-12-14 13:30:46,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.25) internal successors, (95), 76 states have internal predecessors, (95), 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) [2022-12-14 13:30:46,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 95 transitions. [2022-12-14 13:30:46,671 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 95 transitions. Word has length 19 [2022-12-14 13:30:46,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:30:46,671 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 95 transitions. [2022-12-14 13:30:46,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2022-12-14 13:30:46,672 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 95 transitions. [2022-12-14 13:30:46,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 13:30:46,672 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:30:46,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:30:46,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 13:30:46,673 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:30:46,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:30:46,674 INFO L85 PathProgramCache]: Analyzing trace with hash 749579290, now seen corresponding path program 1 times [2022-12-14 13:30:46,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:30:46,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963287102] [2022-12-14 13:30:46,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:46,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:30:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:46,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:46,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:30:46,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963287102] [2022-12-14 13:30:46,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963287102] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:30:46,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:30:46,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:30:46,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829057688] [2022-12-14 13:30:46,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:30:46,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:30:46,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:30:46,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:30:46,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:30:46,781 INFO L87 Difference]: Start difference. First operand 77 states and 95 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-12-14 13:30:46,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:30:46,871 INFO L93 Difference]: Finished difference Result 126 states and 156 transitions. [2022-12-14 13:30:46,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 13:30:46,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) Word has length 22 [2022-12-14 13:30:46,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:30:46,872 INFO L225 Difference]: With dead ends: 126 [2022-12-14 13:30:46,872 INFO L226 Difference]: Without dead ends: 85 [2022-12-14 13:30:46,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 13:30:46,874 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 100 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:30:46,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 124 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:30:46,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-12-14 13:30:46,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 78. [2022-12-14 13:30:46,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.2467532467532467) internal successors, (96), 77 states have internal predecessors, (96), 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) [2022-12-14 13:30:46,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 96 transitions. [2022-12-14 13:30:46,881 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 96 transitions. Word has length 22 [2022-12-14 13:30:46,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:30:46,881 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 96 transitions. [2022-12-14 13:30:46,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-12-14 13:30:46,882 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 96 transitions. [2022-12-14 13:30:46,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 13:30:46,882 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:30:46,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:30:46,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 13:30:46,883 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:30:46,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:30:46,884 INFO L85 PathProgramCache]: Analyzing trace with hash 428094760, now seen corresponding path program 1 times [2022-12-14 13:30:46,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:30:46,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166957603] [2022-12-14 13:30:46,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:46,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:30:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:46,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:30:46,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166957603] [2022-12-14 13:30:46,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166957603] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:30:46,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:30:46,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:30:46,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296306257] [2022-12-14 13:30:46,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:30:46,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:30:46,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:30:46,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:30:46,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:30:46,990 INFO L87 Difference]: Start difference. First operand 78 states and 96 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-12-14 13:30:47,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:30:47,096 INFO L93 Difference]: Finished difference Result 164 states and 219 transitions. [2022-12-14 13:30:47,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:30:47,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) Word has length 28 [2022-12-14 13:30:47,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:30:47,098 INFO L225 Difference]: With dead ends: 164 [2022-12-14 13:30:47,098 INFO L226 Difference]: Without dead ends: 122 [2022-12-14 13:30:47,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:30:47,100 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 60 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:30:47,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 155 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:30:47,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-12-14 13:30:47,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 92. [2022-12-14 13:30:47,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.2747252747252746) internal successors, (116), 91 states have internal predecessors, (116), 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) [2022-12-14 13:30:47,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 116 transitions. [2022-12-14 13:30:47,107 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 116 transitions. Word has length 28 [2022-12-14 13:30:47,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:30:47,108 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 116 transitions. [2022-12-14 13:30:47,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-12-14 13:30:47,108 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 116 transitions. [2022-12-14 13:30:47,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 13:30:47,109 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:30:47,109 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:30:47,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 13:30:47,110 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:30:47,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:30:47,110 INFO L85 PathProgramCache]: Analyzing trace with hash 536135502, now seen corresponding path program 1 times [2022-12-14 13:30:47,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:30:47,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988370507] [2022-12-14 13:30:47,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:47,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:30:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:47,236 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 13:30:47,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:30:47,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988370507] [2022-12-14 13:30:47,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988370507] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:30:47,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:30:47,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:30:47,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420571714] [2022-12-14 13:30:47,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:30:47,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:30:47,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:30:47,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:30:47,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:30:47,238 INFO L87 Difference]: Start difference. First operand 92 states and 116 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-14 13:30:47,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:30:47,325 INFO L93 Difference]: Finished difference Result 256 states and 319 transitions. [2022-12-14 13:30:47,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:30:47,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) Word has length 34 [2022-12-14 13:30:47,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:30:47,327 INFO L225 Difference]: With dead ends: 256 [2022-12-14 13:30:47,327 INFO L226 Difference]: Without dead ends: 188 [2022-12-14 13:30:47,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:30:47,328 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 101 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:30:47,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 185 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:30:47,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-12-14 13:30:47,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 105. [2022-12-14 13:30:47,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.2692307692307692) internal successors, (132), 104 states have internal predecessors, (132), 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) [2022-12-14 13:30:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 132 transitions. [2022-12-14 13:30:47,334 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 132 transitions. Word has length 34 [2022-12-14 13:30:47,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:30:47,334 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 132 transitions. [2022-12-14 13:30:47,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-12-14 13:30:47,334 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 132 transitions. [2022-12-14 13:30:47,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 13:30:47,334 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:30:47,335 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:30:47,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 13:30:47,335 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:30:47,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:30:47,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1194481458, now seen corresponding path program 1 times [2022-12-14 13:30:47,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:30:47,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066444388] [2022-12-14 13:30:47,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:47,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:30:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:47,452 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 13:30:47,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:30:47,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066444388] [2022-12-14 13:30:47,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066444388] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:30:47,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:30:47,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:30:47,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198546391] [2022-12-14 13:30:47,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:30:47,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:30:47,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:30:47,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:30:47,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:30:47,454 INFO L87 Difference]: Start difference. First operand 105 states and 132 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-12-14 13:30:47,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:30:47,543 INFO L93 Difference]: Finished difference Result 262 states and 325 transitions. [2022-12-14 13:30:47,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:30:47,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) Word has length 34 [2022-12-14 13:30:47,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:30:47,545 INFO L225 Difference]: With dead ends: 262 [2022-12-14 13:30:47,545 INFO L226 Difference]: Without dead ends: 195 [2022-12-14 13:30:47,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:30:47,545 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 83 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:30:47,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 176 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:30:47,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-12-14 13:30:47,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 117. [2022-12-14 13:30:47,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.25) internal successors, (145), 116 states have internal predecessors, (145), 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) [2022-12-14 13:30:47,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 145 transitions. [2022-12-14 13:30:47,552 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 145 transitions. Word has length 34 [2022-12-14 13:30:47,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:30:47,552 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 145 transitions. [2022-12-14 13:30:47,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-12-14 13:30:47,552 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 145 transitions. [2022-12-14 13:30:47,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 13:30:47,553 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:30:47,553 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:30:47,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 13:30:47,553 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:30:47,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:30:47,554 INFO L85 PathProgramCache]: Analyzing trace with hash -256847106, now seen corresponding path program 1 times [2022-12-14 13:30:47,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:30:47,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837705752] [2022-12-14 13:30:47,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:47,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:30:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:47,672 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:47,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:30:47,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837705752] [2022-12-14 13:30:47,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837705752] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:30:47,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673616990] [2022-12-14 13:30:47,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:47,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:30:47,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:30:47,674 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:30:47,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:30:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:47,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 13:30:47,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:30:47,898 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:47,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:30:47,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673616990] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:30:47,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 13:30:47,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2022-12-14 13:30:47,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946334368] [2022-12-14 13:30:47,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:30:47,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 13:30:47,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:30:47,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 13:30:47,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-14 13:30:47,900 INFO L87 Difference]: Start difference. First operand 117 states and 145 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2022-12-14 13:30:48,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:30:48,021 INFO L93 Difference]: Finished difference Result 265 states and 334 transitions. [2022-12-14 13:30:48,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:30:48,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) Word has length 37 [2022-12-14 13:30:48,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:30:48,022 INFO L225 Difference]: With dead ends: 265 [2022-12-14 13:30:48,022 INFO L226 Difference]: Without dead ends: 198 [2022-12-14 13:30:48,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-14 13:30:48,023 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 162 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:30:48,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 181 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:30:48,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-12-14 13:30:48,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 178. [2022-12-14 13:30:48,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 1.2598870056497176) internal successors, (223), 177 states have internal predecessors, (223), 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) [2022-12-14 13:30:48,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 223 transitions. [2022-12-14 13:30:48,030 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 223 transitions. Word has length 37 [2022-12-14 13:30:48,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:30:48,030 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 223 transitions. [2022-12-14 13:30:48,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2022-12-14 13:30:48,031 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 223 transitions. [2022-12-14 13:30:48,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 13:30:48,031 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:30:48,031 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:30:48,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:30:48,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:30:48,233 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:30:48,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:30:48,233 INFO L85 PathProgramCache]: Analyzing trace with hash 800850887, now seen corresponding path program 1 times [2022-12-14 13:30:48,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:30:48,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497419562] [2022-12-14 13:30:48,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:48,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:30:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:48,489 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:48,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:30:48,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497419562] [2022-12-14 13:30:48,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497419562] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:30:48,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578412549] [2022-12-14 13:30:48,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:48,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:30:48,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:30:48,491 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:30:48,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 13:30:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:48,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 13:30:48,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:30:48,758 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:48,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:30:48,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578412549] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:30:48,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 13:30:48,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-12-14 13:30:48,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412696120] [2022-12-14 13:30:48,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:30:48,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 13:30:48,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:30:48,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 13:30:48,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-14 13:30:48,760 INFO L87 Difference]: Start difference. First operand 178 states and 223 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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) [2022-12-14 13:30:48,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:30:48,905 INFO L93 Difference]: Finished difference Result 467 states and 592 transitions. [2022-12-14 13:30:48,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:30:48,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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) Word has length 37 [2022-12-14 13:30:48,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:30:48,907 INFO L225 Difference]: With dead ends: 467 [2022-12-14 13:30:48,907 INFO L226 Difference]: Without dead ends: 334 [2022-12-14 13:30:48,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-14 13:30:48,908 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 114 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:30:48,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 244 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:30:48,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-12-14 13:30:48,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 307. [2022-12-14 13:30:48,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 306 states have (on average 1.2418300653594772) internal successors, (380), 306 states have internal predecessors, (380), 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) [2022-12-14 13:30:48,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 380 transitions. [2022-12-14 13:30:48,918 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 380 transitions. Word has length 37 [2022-12-14 13:30:48,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:30:48,918 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 380 transitions. [2022-12-14 13:30:48,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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) [2022-12-14 13:30:48,918 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 380 transitions. [2022-12-14 13:30:48,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 13:30:48,919 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:30:48,919 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:30:48,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 13:30:49,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:30:49,120 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:30:49,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:30:49,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1282241997, now seen corresponding path program 1 times [2022-12-14 13:30:49,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:30:49,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801953437] [2022-12-14 13:30:49,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:49,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:30:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:49,305 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:49,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:30:49,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801953437] [2022-12-14 13:30:49,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801953437] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:30:49,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818116169] [2022-12-14 13:30:49,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:49,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:30:49,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:30:49,306 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:30:49,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 13:30:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:49,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 13:30:49,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:30:49,439 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 13:30:49,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:30:49,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818116169] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:30:49,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 13:30:49,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2022-12-14 13:30:49,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853977131] [2022-12-14 13:30:49,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:30:49,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 13:30:49,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:30:49,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 13:30:49,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-14 13:30:49,441 INFO L87 Difference]: Start difference. First operand 307 states and 380 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 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) [2022-12-14 13:30:49,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:30:49,609 INFO L93 Difference]: Finished difference Result 628 states and 775 transitions. [2022-12-14 13:30:49,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 13:30:49,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 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) Word has length 40 [2022-12-14 13:30:49,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:30:49,611 INFO L225 Difference]: With dead ends: 628 [2022-12-14 13:30:49,611 INFO L226 Difference]: Without dead ends: 560 [2022-12-14 13:30:49,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-14 13:30:49,612 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 284 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:30:49,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 732 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:30:49,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-12-14 13:30:49,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 373. [2022-12-14 13:30:49,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 372 states have (on average 1.2526881720430108) internal successors, (466), 372 states have internal predecessors, (466), 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) [2022-12-14 13:30:49,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 466 transitions. [2022-12-14 13:30:49,629 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 466 transitions. Word has length 40 [2022-12-14 13:30:49,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:30:49,630 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 466 transitions. [2022-12-14 13:30:49,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 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) [2022-12-14 13:30:49,630 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 466 transitions. [2022-12-14 13:30:49,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 13:30:49,631 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:30:49,631 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:30:49,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 13:30:49,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 13:30:49,833 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:30:49,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:30:49,833 INFO L85 PathProgramCache]: Analyzing trace with hash -623896041, now seen corresponding path program 1 times [2022-12-14 13:30:49,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:30:49,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702590668] [2022-12-14 13:30:49,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:49,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:30:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:50,046 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:50,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:30:50,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702590668] [2022-12-14 13:30:50,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702590668] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:30:50,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517930559] [2022-12-14 13:30:50,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:50,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:30:50,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:30:50,048 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:30:50,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 13:30:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:50,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 13:30:50,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:30:50,185 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 13:30:50,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:30:50,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517930559] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:30:50,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 13:30:50,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2022-12-14 13:30:50,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463124942] [2022-12-14 13:30:50,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:30:50,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 13:30:50,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:30:50,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 13:30:50,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-14 13:30:50,187 INFO L87 Difference]: Start difference. First operand 373 states and 466 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 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) [2022-12-14 13:30:50,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:30:50,340 INFO L93 Difference]: Finished difference Result 620 states and 764 transitions. [2022-12-14 13:30:50,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 13:30:50,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 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) Word has length 40 [2022-12-14 13:30:50,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:30:50,342 INFO L225 Difference]: With dead ends: 620 [2022-12-14 13:30:50,342 INFO L226 Difference]: Without dead ends: 552 [2022-12-14 13:30:50,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-14 13:30:50,342 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 281 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:30:50,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 762 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:30:50,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-12-14 13:30:50,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 368. [2022-12-14 13:30:50,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 367 states have (on average 1.2425068119891007) internal successors, (456), 367 states have internal predecessors, (456), 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) [2022-12-14 13:30:50,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 456 transitions. [2022-12-14 13:30:50,352 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 456 transitions. Word has length 40 [2022-12-14 13:30:50,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:30:50,352 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 456 transitions. [2022-12-14 13:30:50,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 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) [2022-12-14 13:30:50,352 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 456 transitions. [2022-12-14 13:30:50,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 13:30:50,353 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:30:50,353 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:30:50,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 13:30:50,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-14 13:30:50,555 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:30:50,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:30:50,556 INFO L85 PathProgramCache]: Analyzing trace with hash -95935952, now seen corresponding path program 1 times [2022-12-14 13:30:50,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:30:50,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875234025] [2022-12-14 13:30:50,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:50,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:30:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:50,809 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:50,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:30:50,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875234025] [2022-12-14 13:30:50,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875234025] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:30:50,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660659401] [2022-12-14 13:30:50,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:50,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:30:50,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:30:50,811 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:30:50,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 13:30:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:50,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-14 13:30:50,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:30:51,146 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:51,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:30:51,976 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:51,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660659401] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:30:51,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1034149400] [2022-12-14 13:30:51,992 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2022-12-14 13:30:51,992 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:30:51,996 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:30:52,001 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:30:52,002 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:30:52,180 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:30:56,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1034149400] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:30:56,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:30:56,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [7, 10, 13] total 39 [2022-12-14 13:30:56,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910408111] [2022-12-14 13:30:56,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:30:56,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 13:30:56,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:30:56,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 13:30:56,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=1224, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 13:30:56,073 INFO L87 Difference]: Start difference. First operand 368 states and 456 transitions. Second operand has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 13 states have internal predecessors, (38), 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) [2022-12-14 13:30:57,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:30:57,782 INFO L93 Difference]: Finished difference Result 841 states and 1039 transitions. [2022-12-14 13:30:57,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 13:30:57,782 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 13 states have internal predecessors, (38), 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) Word has length 43 [2022-12-14 13:30:57,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:30:57,784 INFO L225 Difference]: With dead ends: 841 [2022-12-14 13:30:57,784 INFO L226 Difference]: Without dead ends: 773 [2022-12-14 13:30:57,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 98 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=258, Invalid=1224, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 13:30:57,785 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 415 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 13:30:57,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 1097 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 13:30:57,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-12-14 13:30:57,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 382. [2022-12-14 13:30:57,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 381 states have (on average 1.2388451443569555) internal successors, (472), 381 states have internal predecessors, (472), 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) [2022-12-14 13:30:57,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 472 transitions. [2022-12-14 13:30:57,799 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 472 transitions. Word has length 43 [2022-12-14 13:30:57,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:30:57,799 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 472 transitions. [2022-12-14 13:30:57,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 13 states have internal predecessors, (38), 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) [2022-12-14 13:30:57,800 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 472 transitions. [2022-12-14 13:30:57,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 13:30:57,800 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:30:57,800 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:30:57,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-14 13:30:58,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:30:58,002 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:30:58,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:30:58,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1693139343, now seen corresponding path program 1 times [2022-12-14 13:30:58,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:30:58,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66034238] [2022-12-14 13:30:58,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:58,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:30:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:58,097 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:58,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:30:58,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66034238] [2022-12-14 13:30:58,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66034238] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:30:58,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593171871] [2022-12-14 13:30:58,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:58,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:30:58,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:30:58,099 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:30:58,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 13:30:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:58,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 13:30:58,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:30:58,249 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 13:30:58,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:30:58,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593171871] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:30:58,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 13:30:58,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2022-12-14 13:30:58,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155227849] [2022-12-14 13:30:58,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:30:58,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 13:30:58,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:30:58,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 13:30:58,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-14 13:30:58,251 INFO L87 Difference]: Start difference. First operand 382 states and 472 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 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) [2022-12-14 13:30:58,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:30:58,465 INFO L93 Difference]: Finished difference Result 706 states and 867 transitions. [2022-12-14 13:30:58,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 13:30:58,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 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) Word has length 43 [2022-12-14 13:30:58,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:30:58,467 INFO L225 Difference]: With dead ends: 706 [2022-12-14 13:30:58,467 INFO L226 Difference]: Without dead ends: 638 [2022-12-14 13:30:58,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-14 13:30:58,468 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 341 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:30:58,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 947 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:30:58,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-12-14 13:30:58,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 446. [2022-12-14 13:30:58,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 445 states have (on average 1.247191011235955) internal successors, (555), 445 states have internal predecessors, (555), 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) [2022-12-14 13:30:58,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 555 transitions. [2022-12-14 13:30:58,484 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 555 transitions. Word has length 43 [2022-12-14 13:30:58,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:30:58,484 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 555 transitions. [2022-12-14 13:30:58,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 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) [2022-12-14 13:30:58,484 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 555 transitions. [2022-12-14 13:30:58,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 13:30:58,484 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:30:58,485 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:30:58,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 13:30:58,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:30:58,685 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:30:58,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:30:58,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1034793387, now seen corresponding path program 1 times [2022-12-14 13:30:58,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:30:58,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261219901] [2022-12-14 13:30:58,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:58,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:30:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:58,803 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:58,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:30:58,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261219901] [2022-12-14 13:30:58,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261219901] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:30:58,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804050348] [2022-12-14 13:30:58,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:30:58,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:30:58,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:30:58,805 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:30:58,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 13:30:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:30:58,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 13:30:58,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:30:59,180 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:59,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:30:59,918 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:30:59,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804050348] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:30:59,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [767636662] [2022-12-14 13:30:59,920 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2022-12-14 13:30:59,920 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:30:59,921 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:30:59,921 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:30:59,921 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:31:00,285 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:31:06,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [767636662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:31:06,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:31:06,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [7, 12, 11] total 39 [2022-12-14 13:31:06,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909357078] [2022-12-14 13:31:06,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:31:06,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 13:31:06,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:31:06,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 13:31:06,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=1161, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 13:31:06,832 INFO L87 Difference]: Start difference. First operand 446 states and 555 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 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) [2022-12-14 13:31:08,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:31:08,382 INFO L93 Difference]: Finished difference Result 715 states and 874 transitions. [2022-12-14 13:31:08,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 13:31:08,382 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 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) Word has length 43 [2022-12-14 13:31:08,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:31:08,384 INFO L225 Difference]: With dead ends: 715 [2022-12-14 13:31:08,384 INFO L226 Difference]: Without dead ends: 647 [2022-12-14 13:31:08,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 92 SyntacticMatches, 8 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 746 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=321, Invalid=1161, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 13:31:08,385 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 348 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 13:31:08,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 1132 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 13:31:08,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-12-14 13:31:08,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 452. [2022-12-14 13:31:08,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 451 states have (on average 1.2439024390243902) internal successors, (561), 451 states have internal predecessors, (561), 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) [2022-12-14 13:31:08,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 561 transitions. [2022-12-14 13:31:08,404 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 561 transitions. Word has length 43 [2022-12-14 13:31:08,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:31:08,404 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 561 transitions. [2022-12-14 13:31:08,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 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) [2022-12-14 13:31:08,404 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 561 transitions. [2022-12-14 13:31:08,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 13:31:08,405 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:31:08,405 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:31:08,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-14 13:31:08,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 13:31:08,606 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:31:08,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:31:08,606 INFO L85 PathProgramCache]: Analyzing trace with hash 258287060, now seen corresponding path program 1 times [2022-12-14 13:31:08,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:31:08,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091897809] [2022-12-14 13:31:08,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:08,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:31:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:08,731 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:08,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:31:08,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091897809] [2022-12-14 13:31:08,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091897809] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:31:08,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692642228] [2022-12-14 13:31:08,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:08,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:31:08,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:31:08,733 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:31:08,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 13:31:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:08,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 13:31:08,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:31:09,324 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:09,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:31:10,140 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:10,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692642228] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:31:10,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2096881673] [2022-12-14 13:31:10,143 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-12-14 13:31:10,143 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:31:10,143 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:31:10,143 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:31:10,143 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:31:10,237 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:31:12,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2096881673] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:31:12,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:31:12,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [7, 13, 11] total 41 [2022-12-14 13:31:12,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524511779] [2022-12-14 13:31:12,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:31:12,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 13:31:12,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:31:12,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 13:31:12,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=1337, Unknown=0, NotChecked=0, Total=1640 [2022-12-14 13:31:12,862 INFO L87 Difference]: Start difference. First operand 452 states and 561 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 states have internal predecessors, (40), 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) [2022-12-14 13:31:14,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:31:14,593 INFO L93 Difference]: Finished difference Result 917 states and 1133 transitions. [2022-12-14 13:31:14,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 13:31:14,594 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 states have internal predecessors, (40), 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) Word has length 45 [2022-12-14 13:31:14,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:31:14,595 INFO L225 Difference]: With dead ends: 917 [2022-12-14 13:31:14,595 INFO L226 Difference]: Without dead ends: 849 [2022-12-14 13:31:14,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 102 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=303, Invalid=1337, Unknown=0, NotChecked=0, Total=1640 [2022-12-14 13:31:14,596 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 462 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 13:31:14,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1532 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 13:31:14,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-12-14 13:31:14,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 447. [2022-12-14 13:31:14,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 446 states have (on average 1.242152466367713) internal successors, (554), 446 states have internal predecessors, (554), 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) [2022-12-14 13:31:14,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 554 transitions. [2022-12-14 13:31:14,614 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 554 transitions. Word has length 45 [2022-12-14 13:31:14,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:31:14,615 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 554 transitions. [2022-12-14 13:31:14,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 states have internal predecessors, (40), 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) [2022-12-14 13:31:14,615 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 554 transitions. [2022-12-14 13:31:14,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 13:31:14,615 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:31:14,616 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:31:14,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 13:31:14,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-14 13:31:14,816 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:31:14,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:31:14,817 INFO L85 PathProgramCache]: Analyzing trace with hash 445976813, now seen corresponding path program 1 times [2022-12-14 13:31:14,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:31:14,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534612278] [2022-12-14 13:31:14,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:14,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:31:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:14,871 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:14,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:31:14,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534612278] [2022-12-14 13:31:14,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534612278] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:31:14,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213956476] [2022-12-14 13:31:14,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:14,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:31:14,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:31:14,872 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:31:14,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 13:31:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:14,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 13:31:14,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:31:14,989 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 13:31:14,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:31:14,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213956476] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:31:14,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 13:31:14,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-12-14 13:31:14,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807086460] [2022-12-14 13:31:14,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:31:14,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 13:31:14,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:31:14,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 13:31:14,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-14 13:31:14,991 INFO L87 Difference]: Start difference. First operand 447 states and 554 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 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) [2022-12-14 13:31:15,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:31:15,168 INFO L93 Difference]: Finished difference Result 943 states and 1178 transitions. [2022-12-14 13:31:15,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 13:31:15,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 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) Word has length 45 [2022-12-14 13:31:15,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:31:15,172 INFO L225 Difference]: With dead ends: 943 [2022-12-14 13:31:15,172 INFO L226 Difference]: Without dead ends: 676 [2022-12-14 13:31:15,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-14 13:31:15,173 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 261 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:31:15,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 477 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:31:15,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-12-14 13:31:15,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 607. [2022-12-14 13:31:15,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 606 states have (on average 1.2442244224422443) internal successors, (754), 606 states have internal predecessors, (754), 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) [2022-12-14 13:31:15,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 754 transitions. [2022-12-14 13:31:15,201 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 754 transitions. Word has length 45 [2022-12-14 13:31:15,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:31:15,201 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 754 transitions. [2022-12-14 13:31:15,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 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) [2022-12-14 13:31:15,201 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 754 transitions. [2022-12-14 13:31:15,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 13:31:15,202 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:31:15,202 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:31:15,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 13:31:15,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:31:15,404 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:31:15,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:31:15,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1104322769, now seen corresponding path program 1 times [2022-12-14 13:31:15,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:31:15,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058034401] [2022-12-14 13:31:15,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:15,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:31:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:15,558 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:15,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:31:15,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058034401] [2022-12-14 13:31:15,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058034401] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:31:15,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731590782] [2022-12-14 13:31:15,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:15,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:31:15,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:31:15,559 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:31:15,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 13:31:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:15,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 13:31:15,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:31:15,786 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:15,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:31:16,429 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:16,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731590782] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:31:16,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1496655849] [2022-12-14 13:31:16,430 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-12-14 13:31:16,430 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:31:16,430 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:31:16,430 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:31:16,431 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:31:16,701 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:31:20,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1496655849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:31:20,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:31:20,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [7, 8, 12] total 40 [2022-12-14 13:31:20,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078952603] [2022-12-14 13:31:20,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:31:20,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 13:31:20,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:31:20,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 13:31:20,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=1241, Unknown=0, NotChecked=0, Total=1560 [2022-12-14 13:31:20,390 INFO L87 Difference]: Start difference. First operand 607 states and 754 transitions. Second operand has 16 states, 16 states have (on average 2.5) internal successors, (40), 15 states have internal predecessors, (40), 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) [2022-12-14 13:31:22,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:31:22,241 INFO L93 Difference]: Finished difference Result 748 states and 910 transitions. [2022-12-14 13:31:22,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 13:31:22,242 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 15 states have internal predecessors, (40), 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) Word has length 45 [2022-12-14 13:31:22,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:31:22,243 INFO L225 Difference]: With dead ends: 748 [2022-12-14 13:31:22,243 INFO L226 Difference]: Without dead ends: 675 [2022-12-14 13:31:22,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 98 SyntacticMatches, 7 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=319, Invalid=1241, Unknown=0, NotChecked=0, Total=1560 [2022-12-14 13:31:22,244 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 389 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 13:31:22,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 1636 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1107 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 13:31:22,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-12-14 13:31:22,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 613. [2022-12-14 13:31:22,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 612 states have (on average 1.2418300653594772) internal successors, (760), 612 states have internal predecessors, (760), 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) [2022-12-14 13:31:22,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 760 transitions. [2022-12-14 13:31:22,266 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 760 transitions. Word has length 45 [2022-12-14 13:31:22,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:31:22,266 INFO L495 AbstractCegarLoop]: Abstraction has 613 states and 760 transitions. [2022-12-14 13:31:22,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 15 states have internal predecessors, (40), 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) [2022-12-14 13:31:22,267 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 760 transitions. [2022-12-14 13:31:22,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 13:31:22,267 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:31:22,268 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:31:22,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-14 13:31:22,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-14 13:31:22,469 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:31:22,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:31:22,470 INFO L85 PathProgramCache]: Analyzing trace with hash 559335764, now seen corresponding path program 1 times [2022-12-14 13:31:22,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:31:22,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896017080] [2022-12-14 13:31:22,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:22,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:31:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:22,535 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:22,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:31:22,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896017080] [2022-12-14 13:31:22,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896017080] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:31:22,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528294408] [2022-12-14 13:31:22,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:22,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:31:22,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:31:22,537 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:31:22,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 13:31:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:22,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 13:31:22,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:31:22,669 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 13:31:22,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:31:22,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528294408] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:31:22,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 13:31:22,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 12 [2022-12-14 13:31:22,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823999994] [2022-12-14 13:31:22,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:31:22,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 13:31:22,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:31:22,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 13:31:22,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-14 13:31:22,671 INFO L87 Difference]: Start difference. First operand 613 states and 760 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 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) [2022-12-14 13:31:22,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:31:22,924 INFO L93 Difference]: Finished difference Result 1041 states and 1284 transitions. [2022-12-14 13:31:22,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 13:31:22,924 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 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) Word has length 46 [2022-12-14 13:31:22,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:31:22,926 INFO L225 Difference]: With dead ends: 1041 [2022-12-14 13:31:22,926 INFO L226 Difference]: Without dead ends: 969 [2022-12-14 13:31:22,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-12-14 13:31:22,927 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 456 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:31:22,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1280 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:31:22,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2022-12-14 13:31:22,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 683. [2022-12-14 13:31:22,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 682 states have (on average 1.249266862170088) internal successors, (852), 682 states have internal predecessors, (852), 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) [2022-12-14 13:31:22,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 852 transitions. [2022-12-14 13:31:22,954 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 852 transitions. Word has length 46 [2022-12-14 13:31:22,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:31:22,954 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 852 transitions. [2022-12-14 13:31:22,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 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) [2022-12-14 13:31:22,954 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 852 transitions. [2022-12-14 13:31:22,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 13:31:22,955 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:31:22,955 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:31:22,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-14 13:31:23,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-14 13:31:23,157 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:31:23,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:31:23,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1217681720, now seen corresponding path program 1 times [2022-12-14 13:31:23,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:31:23,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708553956] [2022-12-14 13:31:23,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:23,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:31:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:23,276 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:23,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:31:23,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708553956] [2022-12-14 13:31:23,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708553956] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:31:23,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142308177] [2022-12-14 13:31:23,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:23,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:31:23,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:31:23,278 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:31:23,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 13:31:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:23,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 13:31:23,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:31:23,419 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 13:31:23,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:31:23,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142308177] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:31:23,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 13:31:23,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 12 [2022-12-14 13:31:23,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566237673] [2022-12-14 13:31:23,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:31:23,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 13:31:23,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:31:23,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 13:31:23,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-14 13:31:23,420 INFO L87 Difference]: Start difference. First operand 683 states and 852 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 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) [2022-12-14 13:31:23,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:31:23,671 INFO L93 Difference]: Finished difference Result 1023 states and 1260 transitions. [2022-12-14 13:31:23,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 13:31:23,671 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 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) Word has length 46 [2022-12-14 13:31:23,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:31:23,673 INFO L225 Difference]: With dead ends: 1023 [2022-12-14 13:31:23,673 INFO L226 Difference]: Without dead ends: 954 [2022-12-14 13:31:23,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-14 13:31:23,673 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 415 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:31:23,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 1231 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:31:23,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-12-14 13:31:23,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 670. [2022-12-14 13:31:23,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 669 states have (on average 1.242152466367713) internal successors, (831), 669 states have internal predecessors, (831), 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) [2022-12-14 13:31:23,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 831 transitions. [2022-12-14 13:31:23,700 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 831 transitions. Word has length 46 [2022-12-14 13:31:23,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:31:23,700 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 831 transitions. [2022-12-14 13:31:23,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 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) [2022-12-14 13:31:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 831 transitions. [2022-12-14 13:31:23,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 13:31:23,701 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:31:23,701 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:31:23,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-14 13:31:23,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:31:23,903 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:31:23,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:31:23,904 INFO L85 PathProgramCache]: Analyzing trace with hash -674593947, now seen corresponding path program 1 times [2022-12-14 13:31:23,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:31:23,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655445206] [2022-12-14 13:31:23,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:23,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:31:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:24,048 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:24,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:31:24,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655445206] [2022-12-14 13:31:24,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655445206] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:31:24,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118881981] [2022-12-14 13:31:24,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:24,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:31:24,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:31:24,050 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:31:24,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-14 13:31:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:24,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 13:31:24,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:31:24,333 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:24,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:31:24,611 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:24,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118881981] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:31:24,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1955943992] [2022-12-14 13:31:24,613 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2022-12-14 13:31:24,613 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:31:24,613 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:31:24,613 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:31:24,613 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:31:34,208 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:31:38,310 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19840#(and (<= |ULTIMATE.start_mp_add_~carry~0#1| 1) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_mp_add_~i~0#1| 257) (= (mod |ULTIMATE.start_mp_add_~carry~0#1| 65536) 0) (<= |ULTIMATE.start_mp_add_~nb~0#1| 3) (<= 3 |ULTIMATE.start_mp_add_~nb~0#1|) (<= 0 |ULTIMATE.start_mp_add_~i~0#1|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_mp_add_~na~0#1| 3) (<= |#NULL.base| 0) (not (< (mod |ULTIMATE.start_mp_add_~i~0#1| 256) 4)) (<= 3 |ULTIMATE.start_mp_add_~na~0#1|) (<= 0 |ULTIMATE.start_mp_add_~carry~0#1|) (<= 0 |#NULL.offset|) (not (<= (* (mod |ULTIMATE.start_mp_add_~r3~0#1| 256) 16777216) 2147483647)) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 13:31:38,311 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:31:38,311 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:31:38,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 9] total 16 [2022-12-14 13:31:38,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392789258] [2022-12-14 13:31:38,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:31:38,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 13:31:38,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:31:38,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 13:31:38,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=1126, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 13:31:38,312 INFO L87 Difference]: Start difference. First operand 670 states and 831 transitions. Second operand has 16 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 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) [2022-12-14 13:31:40,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:31:40,421 INFO L93 Difference]: Finished difference Result 2687 states and 3418 transitions. [2022-12-14 13:31:40,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-14 13:31:40,423 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 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) Word has length 46 [2022-12-14 13:31:40,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:31:40,426 INFO L225 Difference]: With dead ends: 2687 [2022-12-14 13:31:40,426 INFO L226 Difference]: Without dead ends: 2110 [2022-12-14 13:31:40,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 106 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=686, Invalid=2620, Unknown=0, NotChecked=0, Total=3306 [2022-12-14 13:31:40,428 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 542 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:31:40,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 801 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 13:31:40,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2022-12-14 13:31:40,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 1638. [2022-12-14 13:31:40,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1638 states, 1637 states have (on average 1.2632864996945632) internal successors, (2068), 1637 states have internal predecessors, (2068), 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) [2022-12-14 13:31:40,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 2068 transitions. [2022-12-14 13:31:40,503 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 2068 transitions. Word has length 46 [2022-12-14 13:31:40,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:31:40,503 INFO L495 AbstractCegarLoop]: Abstraction has 1638 states and 2068 transitions. [2022-12-14 13:31:40,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 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) [2022-12-14 13:31:40,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 2068 transitions. [2022-12-14 13:31:40,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 13:31:40,504 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:31:40,504 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:31:40,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-14 13:31:40,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:31:40,706 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:31:40,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:31:40,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1140785940, now seen corresponding path program 1 times [2022-12-14 13:31:40,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:31:40,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472529874] [2022-12-14 13:31:40,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:40,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:31:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:40,818 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:40,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:31:40,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472529874] [2022-12-14 13:31:40,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472529874] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:31:40,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629461477] [2022-12-14 13:31:40,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:40,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:31:40,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:31:40,820 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:31:40,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-14 13:31:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:40,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-14 13:31:40,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:31:41,009 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 13:31:41,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:31:41,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629461477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:31:41,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 13:31:41,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 14 [2022-12-14 13:31:41,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48332855] [2022-12-14 13:31:41,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:31:41,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 13:31:41,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:31:41,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 13:31:41,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-12-14 13:31:41,011 INFO L87 Difference]: Start difference. First operand 1638 states and 2068 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 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) [2022-12-14 13:31:41,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:31:41,353 INFO L93 Difference]: Finished difference Result 2616 states and 3317 transitions. [2022-12-14 13:31:41,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 13:31:41,353 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 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) Word has length 48 [2022-12-14 13:31:41,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:31:41,356 INFO L225 Difference]: With dead ends: 2616 [2022-12-14 13:31:41,356 INFO L226 Difference]: Without dead ends: 2378 [2022-12-14 13:31:41,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-12-14 13:31:41,357 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 477 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:31:41,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1712 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:31:41,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2378 states. [2022-12-14 13:31:41,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2378 to 1638. [2022-12-14 13:31:41,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1638 states, 1637 states have (on average 1.262675626145388) internal successors, (2067), 1637 states have internal predecessors, (2067), 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) [2022-12-14 13:31:41,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 2067 transitions. [2022-12-14 13:31:41,463 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 2067 transitions. Word has length 48 [2022-12-14 13:31:41,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:31:41,463 INFO L495 AbstractCegarLoop]: Abstraction has 1638 states and 2067 transitions. [2022-12-14 13:31:41,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 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) [2022-12-14 13:31:41,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 2067 transitions. [2022-12-14 13:31:41,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 13:31:41,464 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:31:41,464 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:31:41,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-12-14 13:31:41,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-12-14 13:31:41,666 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:31:41,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:31:41,667 INFO L85 PathProgramCache]: Analyzing trace with hash 411037456, now seen corresponding path program 1 times [2022-12-14 13:31:41,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:31:41,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515184361] [2022-12-14 13:31:41,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:41,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:31:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:41,772 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:41,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:31:41,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515184361] [2022-12-14 13:31:41,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515184361] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:31:41,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130405311] [2022-12-14 13:31:41,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:41,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:31:41,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:31:41,773 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:31:41,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-14 13:31:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:41,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 13:31:41,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:31:41,910 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 13:31:41,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:31:41,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130405311] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:31:41,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 13:31:41,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2022-12-14 13:31:41,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776352866] [2022-12-14 13:31:41,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:31:41,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 13:31:41,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:31:41,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 13:31:41,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-14 13:31:41,912 INFO L87 Difference]: Start difference. First operand 1638 states and 2067 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 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) [2022-12-14 13:31:42,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:31:42,243 INFO L93 Difference]: Finished difference Result 3942 states and 5049 transitions. [2022-12-14 13:31:42,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 13:31:42,244 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 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) Word has length 48 [2022-12-14 13:31:42,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:31:42,248 INFO L225 Difference]: With dead ends: 3942 [2022-12-14 13:31:42,248 INFO L226 Difference]: Without dead ends: 2453 [2022-12-14 13:31:42,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-12-14 13:31:42,249 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 376 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:31:42,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 1146 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:31:42,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2453 states. [2022-12-14 13:31:42,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2453 to 2191. [2022-12-14 13:31:42,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 2190 states have (on average 1.2716894977168949) internal successors, (2785), 2190 states have internal predecessors, (2785), 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) [2022-12-14 13:31:42,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2785 transitions. [2022-12-14 13:31:42,341 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2785 transitions. Word has length 48 [2022-12-14 13:31:42,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:31:42,341 INFO L495 AbstractCegarLoop]: Abstraction has 2191 states and 2785 transitions. [2022-12-14 13:31:42,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 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) [2022-12-14 13:31:42,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2785 transitions. [2022-12-14 13:31:42,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 13:31:42,342 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:31:42,342 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:31:42,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-12-14 13:31:42,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:31:42,543 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:31:42,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:31:42,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1069383412, now seen corresponding path program 1 times [2022-12-14 13:31:42,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:31:42,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542636877] [2022-12-14 13:31:42,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:42,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:31:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:42,661 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:42,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:31:42,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542636877] [2022-12-14 13:31:42,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542636877] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:31:42,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842741683] [2022-12-14 13:31:42,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:31:42,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:31:42,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:31:42,663 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:31:42,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-14 13:31:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:31:42,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 13:31:42,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:31:42,910 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:42,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:31:43,637 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:31:43,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842741683] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:31:43,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [42155414] [2022-12-14 13:31:43,638 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2022-12-14 13:31:43,638 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:31:43,638 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:31:43,638 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:31:43,638 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:31:49,755 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:31:56,943 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '35952#(and (<= |ULTIMATE.start_mp_add_~carry~0#1| 1) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_mp_add_~i~0#1| 257) (= (mod |ULTIMATE.start_mp_add_~carry~0#1| 65536) 0) (<= 1 |ULTIMATE.start_mp_add_~nb~0#1|) (<= 0 |ULTIMATE.start_mp_add_~i~0#1|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_mp_add_~nb~0#1| 1) (<= |#NULL.base| 0) (not (< (mod |ULTIMATE.start_mp_add_~i~0#1| 256) 4)) (<= |ULTIMATE.start_mp_add_~na~0#1| 2) (<= 2 |ULTIMATE.start_mp_add_~na~0#1|) (<= 0 |ULTIMATE.start_mp_add_~carry~0#1|) (<= 0 |#NULL.offset|) (not (<= (* (mod |ULTIMATE.start_mp_add_~r3~0#1| 256) 16777216) 2147483647)) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 13:31:56,943 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:31:56,943 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:31:56,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12, 11] total 24 [2022-12-14 13:31:56,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581725751] [2022-12-14 13:31:56,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:31:56,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 13:31:56,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:31:56,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 13:31:56,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=1927, Unknown=0, NotChecked=0, Total=2256 [2022-12-14 13:31:56,945 INFO L87 Difference]: Start difference. First operand 2191 states and 2785 transitions. Second operand has 24 states, 24 states have (on average 4.083333333333333) internal successors, (98), 24 states have internal predecessors, (98), 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) [2022-12-14 13:32:01,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:32:01,343 INFO L93 Difference]: Finished difference Result 7830 states and 10148 transitions. [2022-12-14 13:32:01,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-14 13:32:01,343 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.083333333333333) internal successors, (98), 24 states have internal predecessors, (98), 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) Word has length 48 [2022-12-14 13:32:01,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:32:01,351 INFO L225 Difference]: With dead ends: 7830 [2022-12-14 13:32:01,351 INFO L226 Difference]: Without dead ends: 5703 [2022-12-14 13:32:01,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 106 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2245 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=1037, Invalid=4219, Unknown=0, NotChecked=0, Total=5256 [2022-12-14 13:32:01,354 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 664 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 13:32:01,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 480 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 13:32:01,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5703 states. [2022-12-14 13:32:01,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5703 to 3578. [2022-12-14 13:32:01,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3578 states, 3577 states have (on average 1.2373497344143136) internal successors, (4426), 3577 states have internal predecessors, (4426), 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) [2022-12-14 13:32:01,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3578 states to 3578 states and 4426 transitions. [2022-12-14 13:32:01,554 INFO L78 Accepts]: Start accepts. Automaton has 3578 states and 4426 transitions. Word has length 48 [2022-12-14 13:32:01,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:32:01,554 INFO L495 AbstractCegarLoop]: Abstraction has 3578 states and 4426 transitions. [2022-12-14 13:32:01,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.083333333333333) internal successors, (98), 24 states have internal predecessors, (98), 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) [2022-12-14 13:32:01,554 INFO L276 IsEmpty]: Start isEmpty. Operand 3578 states and 4426 transitions. [2022-12-14 13:32:01,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 13:32:01,556 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:32:01,556 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:32:01,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-12-14 13:32:01,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:32:01,758 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:32:01,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:32:01,759 INFO L85 PathProgramCache]: Analyzing trace with hash -930309398, now seen corresponding path program 1 times [2022-12-14 13:32:01,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:32:01,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92464239] [2022-12-14 13:32:01,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:01,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:32:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:01,850 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 13:32:01,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:32:01,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92464239] [2022-12-14 13:32:01,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92464239] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:32:01,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634735894] [2022-12-14 13:32:01,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:01,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:32:01,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:32:01,851 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:32:01,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-14 13:32:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:01,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:32:01,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:32:01,946 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 13:32:01,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:32:01,984 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 13:32:01,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634735894] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:32:01,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [878208103] [2022-12-14 13:32:01,986 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-12-14 13:32:01,986 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:32:01,987 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:32:01,987 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:32:01,987 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:32:03,391 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-14 13:32:03,393 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-14 13:32:05,176 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:32:09,431 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '48434#(and (<= |ULTIMATE.start_mp_add_~carry~0#1| 1) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_mp_add_~i~0#1| 257) (= (mod |ULTIMATE.start_mp_add_~carry~0#1| 65536) 0) (<= 1 |ULTIMATE.start_mp_add_~nb~0#1|) (<= 0 |ULTIMATE.start_mp_add_~i~0#1|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_mp_add_~nb~0#1| 1) (<= |#NULL.base| 0) (not (< (mod |ULTIMATE.start_mp_add_~i~0#1| 256) 4)) (<= |ULTIMATE.start_mp_add_~na~0#1| 2) (<= 2 |ULTIMATE.start_mp_add_~na~0#1|) (<= 0 |ULTIMATE.start_mp_add_~carry~0#1|) (<= 0 |#NULL.offset|) (not (<= (* (mod |ULTIMATE.start_mp_add_~r3~0#1| 256) 16777216) 2147483647)) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 13:32:09,432 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:32:09,432 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:32:09,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 5 [2022-12-14 13:32:09,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939648183] [2022-12-14 13:32:09,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:32:09,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:32:09,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:32:09,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:32:09,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=748, Unknown=0, NotChecked=0, Total=870 [2022-12-14 13:32:09,433 INFO L87 Difference]: Start difference. First operand 3578 states and 4426 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2022-12-14 13:32:09,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:32:09,757 INFO L93 Difference]: Finished difference Result 7527 states and 9408 transitions. [2022-12-14 13:32:09,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:32:09,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) Word has length 64 [2022-12-14 13:32:09,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:32:09,764 INFO L225 Difference]: With dead ends: 7527 [2022-12-14 13:32:09,764 INFO L226 Difference]: Without dead ends: 5078 [2022-12-14 13:32:09,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 161 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=127, Invalid=803, Unknown=0, NotChecked=0, Total=930 [2022-12-14 13:32:09,766 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 55 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:32:09,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 210 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:32:09,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5078 states. [2022-12-14 13:32:09,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5078 to 3640. [2022-12-14 13:32:09,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 3639 states have (on average 1.2371530640285793) internal successors, (4502), 3639 states have internal predecessors, (4502), 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) [2022-12-14 13:32:09,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 4502 transitions. [2022-12-14 13:32:09,971 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 4502 transitions. Word has length 64 [2022-12-14 13:32:09,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:32:09,971 INFO L495 AbstractCegarLoop]: Abstraction has 3640 states and 4502 transitions. [2022-12-14 13:32:09,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2022-12-14 13:32:09,971 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 4502 transitions. [2022-12-14 13:32:09,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 13:32:09,973 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:32:09,973 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:32:09,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-12-14 13:32:10,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-12-14 13:32:10,175 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:32:10,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:32:10,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1728533846, now seen corresponding path program 1 times [2022-12-14 13:32:10,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:32:10,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605736250] [2022-12-14 13:32:10,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:10,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:32:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:10,450 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 36 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 13:32:10,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:32:10,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605736250] [2022-12-14 13:32:10,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605736250] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:32:10,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521360593] [2022-12-14 13:32:10,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:10,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:32:10,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:32:10,452 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:32:10,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-14 13:32:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:10,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-14 13:32:10,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:32:10,723 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 13:32:10,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:32:11,187 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:32:11,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521360593] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:32:11,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1649167642] [2022-12-14 13:32:11,188 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2022-12-14 13:32:11,189 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:32:11,189 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:32:11,189 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:32:11,189 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:32:16,638 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:32:22,134 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '60737#(and (<= |ULTIMATE.start_mp_add_~carry~0#1| 1) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_mp_add_~i~0#1| 257) (= (mod |ULTIMATE.start_mp_add_~carry~0#1| 65536) 0) (<= 1 |ULTIMATE.start_mp_add_~nb~0#1|) (<= 0 |ULTIMATE.start_mp_add_~i~0#1|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_mp_add_~nb~0#1| 1) (<= |#NULL.base| 0) (not (< (mod |ULTIMATE.start_mp_add_~i~0#1| 256) 4)) (<= |ULTIMATE.start_mp_add_~na~0#1| 2) (<= 2 |ULTIMATE.start_mp_add_~na~0#1|) (<= 0 |ULTIMATE.start_mp_add_~carry~0#1|) (<= 0 |#NULL.offset|) (not (<= (* (mod |ULTIMATE.start_mp_add_~r3~0#1| 256) 16777216) 2147483647)) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 13:32:22,135 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:32:22,135 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:32:22,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 13] total 25 [2022-12-14 13:32:22,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491431356] [2022-12-14 13:32:22,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:32:22,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 13:32:22,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:32:22,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 13:32:22,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=2199, Unknown=0, NotChecked=0, Total=2550 [2022-12-14 13:32:22,136 INFO L87 Difference]: Start difference. First operand 3640 states and 4502 transitions. Second operand has 25 states, 25 states have (on average 4.12) internal successors, (103), 25 states have internal predecessors, (103), 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) [2022-12-14 13:32:23,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:32:23,072 INFO L93 Difference]: Finished difference Result 9738 states and 12011 transitions. [2022-12-14 13:32:23,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 13:32:23,073 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.12) internal successors, (103), 25 states have internal predecessors, (103), 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) Word has length 64 [2022-12-14 13:32:23,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:32:23,088 INFO L225 Difference]: With dead ends: 9738 [2022-12-14 13:32:23,088 INFO L226 Difference]: Without dead ends: 6199 [2022-12-14 13:32:23,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 150 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1293 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=523, Invalid=3017, Unknown=0, NotChecked=0, Total=3540 [2022-12-14 13:32:23,091 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 437 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 13:32:23,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 564 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 13:32:23,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6199 states. [2022-12-14 13:32:23,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6199 to 3909. [2022-12-14 13:32:23,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3909 states, 3908 states have (on average 1.238229273285568) internal successors, (4839), 3908 states have internal predecessors, (4839), 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) [2022-12-14 13:32:23,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3909 states to 3909 states and 4839 transitions. [2022-12-14 13:32:23,332 INFO L78 Accepts]: Start accepts. Automaton has 3909 states and 4839 transitions. Word has length 64 [2022-12-14 13:32:23,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:32:23,333 INFO L495 AbstractCegarLoop]: Abstraction has 3909 states and 4839 transitions. [2022-12-14 13:32:23,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.12) internal successors, (103), 25 states have internal predecessors, (103), 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) [2022-12-14 13:32:23,333 INFO L276 IsEmpty]: Start isEmpty. Operand 3909 states and 4839 transitions. [2022-12-14 13:32:23,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 13:32:23,335 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:32:23,335 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:32:23,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-12-14 13:32:23,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-14 13:32:23,537 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:32:23,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:32:23,537 INFO L85 PathProgramCache]: Analyzing trace with hash 591350963, now seen corresponding path program 1 times [2022-12-14 13:32:23,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:32:23,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791602951] [2022-12-14 13:32:23,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:23,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:32:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:23,708 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 43 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 13:32:23,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:32:23,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791602951] [2022-12-14 13:32:23,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791602951] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:32:23,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289034517] [2022-12-14 13:32:23,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:23,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:32:23,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:32:23,709 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:32:23,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-12-14 13:32:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:23,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 13:32:23,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:32:23,900 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-14 13:32:23,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:32:23,981 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-14 13:32:23,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289034517] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:32:23,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [355559726] [2022-12-14 13:32:23,983 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2022-12-14 13:32:23,983 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:32:23,984 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:32:23,984 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:32:23,984 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:32:24,318 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:32:28,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [355559726] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:32:28,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:32:28,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7, 6, 6] total 24 [2022-12-14 13:32:28,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140503472] [2022-12-14 13:32:28,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:32:28,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 13:32:28,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:32:28,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 13:32:28,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2022-12-14 13:32:28,022 INFO L87 Difference]: Start difference. First operand 3909 states and 4839 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 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) [2022-12-14 13:32:29,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:32:29,334 INFO L93 Difference]: Finished difference Result 4660 states and 5734 transitions. [2022-12-14 13:32:29,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 13:32:29,334 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 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) Word has length 68 [2022-12-14 13:32:29,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:32:29,342 INFO L225 Difference]: With dead ends: 4660 [2022-12-14 13:32:29,342 INFO L226 Difference]: Without dead ends: 4551 [2022-12-14 13:32:29,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 182 SyntacticMatches, 8 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2022-12-14 13:32:29,344 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 407 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:32:29,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 672 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 13:32:29,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4551 states. [2022-12-14 13:32:29,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4551 to 3915. [2022-12-14 13:32:29,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3915 states, 3914 states have (on average 1.2378640776699028) internal successors, (4845), 3914 states have internal predecessors, (4845), 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) [2022-12-14 13:32:29,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3915 states to 3915 states and 4845 transitions. [2022-12-14 13:32:29,613 INFO L78 Accepts]: Start accepts. Automaton has 3915 states and 4845 transitions. Word has length 68 [2022-12-14 13:32:29,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:32:29,613 INFO L495 AbstractCegarLoop]: Abstraction has 3915 states and 4845 transitions. [2022-12-14 13:32:29,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 12 states have internal predecessors, (41), 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) [2022-12-14 13:32:29,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3915 states and 4845 transitions. [2022-12-14 13:32:29,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 13:32:29,614 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:32:29,614 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:32:29,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-12-14 13:32:29,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-14 13:32:29,816 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:32:29,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:32:29,817 INFO L85 PathProgramCache]: Analyzing trace with hash 793168328, now seen corresponding path program 1 times [2022-12-14 13:32:29,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:32:29,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446788744] [2022-12-14 13:32:29,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:29,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:32:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:29,999 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 13:32:29,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:32:29,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446788744] [2022-12-14 13:32:29,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446788744] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:32:29,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419143241] [2022-12-14 13:32:29,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:29,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:32:29,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:32:30,000 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:32:30,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-12-14 13:32:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:30,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 13:32:30,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:32:30,142 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 43 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 13:32:30,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:32:30,397 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 13:32:30,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419143241] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:32:30,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1151030301] [2022-12-14 13:32:30,399 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2022-12-14 13:32:30,399 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:32:30,399 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:32:30,399 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:32:30,399 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:32:30,806 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:32:38,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1151030301] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:32:38,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:32:38,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [7, 6, 9] total 34 [2022-12-14 13:32:38,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706875298] [2022-12-14 13:32:38,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:32:38,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-14 13:32:38,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:32:38,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-14 13:32:38,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=924, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 13:32:38,728 INFO L87 Difference]: Start difference. First operand 3915 states and 4845 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 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) [2022-12-14 13:32:41,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:32:41,789 INFO L93 Difference]: Finished difference Result 4471 states and 5478 transitions. [2022-12-14 13:32:41,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-14 13:32:41,790 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 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) Word has length 70 [2022-12-14 13:32:41,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:32:41,795 INFO L225 Difference]: With dead ends: 4471 [2022-12-14 13:32:41,795 INFO L226 Difference]: Without dead ends: 4345 [2022-12-14 13:32:41,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 176 SyntacticMatches, 10 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=198, Invalid=924, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 13:32:41,796 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 544 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 13:32:41,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 1602 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 13:32:41,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4345 states. [2022-12-14 13:32:42,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4345 to 3921. [2022-12-14 13:32:42,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3921 states, 3920 states have (on average 1.2375) internal successors, (4851), 3920 states have internal predecessors, (4851), 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) [2022-12-14 13:32:42,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3921 states to 3921 states and 4851 transitions. [2022-12-14 13:32:42,050 INFO L78 Accepts]: Start accepts. Automaton has 3921 states and 4851 transitions. Word has length 70 [2022-12-14 13:32:42,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:32:42,050 INFO L495 AbstractCegarLoop]: Abstraction has 3921 states and 4851 transitions. [2022-12-14 13:32:42,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 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) [2022-12-14 13:32:42,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3921 states and 4851 transitions. [2022-12-14 13:32:42,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-14 13:32:42,052 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:32:42,052 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:32:42,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-12-14 13:32:42,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:32:42,253 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:32:42,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:32:42,253 INFO L85 PathProgramCache]: Analyzing trace with hash -949192401, now seen corresponding path program 1 times [2022-12-14 13:32:42,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:32:42,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330254218] [2022-12-14 13:32:42,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:42,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:32:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:42,413 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 43 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 13:32:42,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:32:42,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330254218] [2022-12-14 13:32:42,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330254218] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:32:42,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594594616] [2022-12-14 13:32:42,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:42,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:32:42,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:32:42,415 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:32:42,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-12-14 13:32:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:42,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 13:32:42,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:32:42,624 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-14 13:32:42,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:32:42,696 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-14 13:32:42,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594594616] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:32:42,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [988513264] [2022-12-14 13:32:42,698 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2022-12-14 13:32:42,698 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:32:42,698 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:32:42,698 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:32:42,699 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:32:42,917 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:32:45,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [988513264] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:32:45,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:32:45,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [7, 6, 6] total 25 [2022-12-14 13:32:45,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226897593] [2022-12-14 13:32:45,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:32:45,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 13:32:45,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:32:45,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 13:32:45,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-12-14 13:32:45,253 INFO L87 Difference]: Start difference. First operand 3921 states and 4851 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 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) [2022-12-14 13:32:46,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:32:46,839 INFO L93 Difference]: Finished difference Result 4672 states and 5746 transitions. [2022-12-14 13:32:46,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 13:32:46,840 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 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) Word has length 70 [2022-12-14 13:32:46,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:32:46,844 INFO L225 Difference]: With dead ends: 4672 [2022-12-14 13:32:46,844 INFO L226 Difference]: Without dead ends: 4563 [2022-12-14 13:32:46,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 187 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-12-14 13:32:46,845 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 385 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 13:32:46,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1110 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 13:32:46,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4563 states. [2022-12-14 13:32:47,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4563 to 3927. [2022-12-14 13:32:47,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3927 states, 3926 states have (on average 1.2371370351502802) internal successors, (4857), 3926 states have internal predecessors, (4857), 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) [2022-12-14 13:32:47,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3927 states to 3927 states and 4857 transitions. [2022-12-14 13:32:47,086 INFO L78 Accepts]: Start accepts. Automaton has 3927 states and 4857 transitions. Word has length 70 [2022-12-14 13:32:47,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:32:47,086 INFO L495 AbstractCegarLoop]: Abstraction has 3927 states and 4857 transitions. [2022-12-14 13:32:47,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 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) [2022-12-14 13:32:47,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3927 states and 4857 transitions. [2022-12-14 13:32:47,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 13:32:47,088 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:32:47,088 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:32:47,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-12-14 13:32:47,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-12-14 13:32:47,290 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:32:47,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:32:47,291 INFO L85 PathProgramCache]: Analyzing trace with hash -479957904, now seen corresponding path program 1 times [2022-12-14 13:32:47,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:32:47,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558548271] [2022-12-14 13:32:47,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:47,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:32:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:47,464 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 13:32:47,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:32:47,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558548271] [2022-12-14 13:32:47,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558548271] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:32:47,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588023441] [2022-12-14 13:32:47,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:47,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:32:47,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:32:47,465 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:32:47,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-12-14 13:32:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:47,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 13:32:47,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:32:47,648 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-14 13:32:47,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:32:47,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588023441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:32:47,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 13:32:47,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 16 [2022-12-14 13:32:47,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399296066] [2022-12-14 13:32:47,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:32:47,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 13:32:47,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:32:47,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 13:32:47,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-12-14 13:32:47,649 INFO L87 Difference]: Start difference. First operand 3927 states and 4857 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 10 states have internal predecessors, (52), 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) [2022-12-14 13:32:48,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:32:48,316 INFO L93 Difference]: Finished difference Result 5146 states and 6331 transitions. [2022-12-14 13:32:48,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 13:32:48,317 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 10 states have internal predecessors, (52), 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) Word has length 72 [2022-12-14 13:32:48,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:32:48,322 INFO L225 Difference]: With dead ends: 5146 [2022-12-14 13:32:48,323 INFO L226 Difference]: Without dead ends: 4450 [2022-12-14 13:32:48,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-12-14 13:32:48,324 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 567 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 2296 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 13:32:48,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 2296 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 13:32:48,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4450 states. [2022-12-14 13:32:48,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4450 to 3914. [2022-12-14 13:32:48,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3914 states, 3913 states have (on average 1.231791464349604) internal successors, (4820), 3913 states have internal predecessors, (4820), 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) [2022-12-14 13:32:48,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3914 states to 3914 states and 4820 transitions. [2022-12-14 13:32:48,606 INFO L78 Accepts]: Start accepts. Automaton has 3914 states and 4820 transitions. Word has length 72 [2022-12-14 13:32:48,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:32:48,606 INFO L495 AbstractCegarLoop]: Abstraction has 3914 states and 4820 transitions. [2022-12-14 13:32:48,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 10 states have internal predecessors, (52), 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) [2022-12-14 13:32:48,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3914 states and 4820 transitions. [2022-12-14 13:32:48,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 13:32:48,608 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:32:48,608 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:32:48,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-12-14 13:32:48,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-12-14 13:32:48,808 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:32:48,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:32:48,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1995923548, now seen corresponding path program 1 times [2022-12-14 13:32:48,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:32:48,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025299668] [2022-12-14 13:32:48,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:48,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:32:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:48,983 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 13:32:48,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:32:48,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025299668] [2022-12-14 13:32:48,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025299668] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:32:48,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091396217] [2022-12-14 13:32:48,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:48,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:32:48,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:32:48,985 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:32:48,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-12-14 13:32:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:49,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 13:32:49,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:32:49,165 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-14 13:32:49,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:32:49,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091396217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:32:49,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 13:32:49,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 16 [2022-12-14 13:32:49,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465672171] [2022-12-14 13:32:49,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:32:49,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 13:32:49,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:32:49,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 13:32:49,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-12-14 13:32:49,166 INFO L87 Difference]: Start difference. First operand 3914 states and 4820 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 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) [2022-12-14 13:32:49,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:32:49,638 INFO L93 Difference]: Finished difference Result 4471 states and 5456 transitions. [2022-12-14 13:32:49,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 13:32:49,639 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 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) Word has length 72 [2022-12-14 13:32:49,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:32:49,643 INFO L225 Difference]: With dead ends: 4471 [2022-12-14 13:32:49,643 INFO L226 Difference]: Without dead ends: 4187 [2022-12-14 13:32:49,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-12-14 13:32:49,645 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 483 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:32:49,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 2093 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:32:49,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4187 states. [2022-12-14 13:32:49,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4187 to 3781. [2022-12-14 13:32:49,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3781 states, 3780 states have (on average 1.2341269841269842) internal successors, (4665), 3780 states have internal predecessors, (4665), 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) [2022-12-14 13:32:49,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3781 states to 3781 states and 4665 transitions. [2022-12-14 13:32:49,909 INFO L78 Accepts]: Start accepts. Automaton has 3781 states and 4665 transitions. Word has length 72 [2022-12-14 13:32:49,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:32:49,909 INFO L495 AbstractCegarLoop]: Abstraction has 3781 states and 4665 transitions. [2022-12-14 13:32:49,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 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) [2022-12-14 13:32:49,909 INFO L276 IsEmpty]: Start isEmpty. Operand 3781 states and 4665 transitions. [2022-12-14 13:32:49,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 13:32:49,911 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:32:49,911 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:32:49,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-12-14 13:32:50,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:32:50,112 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:32:50,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:32:50,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1404207523, now seen corresponding path program 1 times [2022-12-14 13:32:50,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:32:50,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071839548] [2022-12-14 13:32:50,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:50,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:32:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:50,228 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-12-14 13:32:50,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:32:50,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071839548] [2022-12-14 13:32:50,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071839548] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:32:50,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:32:50,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 13:32:50,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565679996] [2022-12-14 13:32:50,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:32:50,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 13:32:50,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:32:50,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 13:32:50,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 13:32:50,230 INFO L87 Difference]: Start difference. First operand 3781 states and 4665 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-12-14 13:32:51,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:32:51,074 INFO L93 Difference]: Finished difference Result 4499 states and 5477 transitions. [2022-12-14 13:32:51,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 13:32:51,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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) Word has length 72 [2022-12-14 13:32:51,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:32:51,078 INFO L225 Difference]: With dead ends: 4499 [2022-12-14 13:32:51,078 INFO L226 Difference]: Without dead ends: 4366 [2022-12-14 13:32:51,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-14 13:32:51,079 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 394 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 13:32:51,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 970 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 13:32:51,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4366 states. [2022-12-14 13:32:51,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4366 to 3781. [2022-12-14 13:32:51,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3781 states, 3780 states have (on average 1.2338624338624338) internal successors, (4664), 3780 states have internal predecessors, (4664), 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) [2022-12-14 13:32:51,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3781 states to 3781 states and 4664 transitions. [2022-12-14 13:32:51,512 INFO L78 Accepts]: Start accepts. Automaton has 3781 states and 4664 transitions. Word has length 72 [2022-12-14 13:32:51,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:32:51,512 INFO L495 AbstractCegarLoop]: Abstraction has 3781 states and 4664 transitions. [2022-12-14 13:32:51,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-12-14 13:32:51,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3781 states and 4664 transitions. [2022-12-14 13:32:51,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 13:32:51,516 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:32:51,517 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:32:51,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 13:32:51,517 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:32:51,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:32:51,517 INFO L85 PathProgramCache]: Analyzing trace with hash -49527609, now seen corresponding path program 1 times [2022-12-14 13:32:51,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:32:51,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944861323] [2022-12-14 13:32:51,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:51,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:32:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:51,608 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 34 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 13:32:51,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:32:51,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944861323] [2022-12-14 13:32:51,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944861323] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:32:51,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605210973] [2022-12-14 13:32:51,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:51,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:32:51,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:32:51,610 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:32:51,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-12-14 13:32:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:32:51,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 13:32:51,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:32:51,713 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 13:32:51,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:32:51,775 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 13:32:51,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605210973] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:32:51,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [426887543] [2022-12-14 13:32:51,776 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2022-12-14 13:32:51,776 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:32:51,776 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:32:51,776 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:32:51,776 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:33:09,765 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:33:13,290 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '132231#(and (<= |ULTIMATE.start_mp_add_~carry~0#1| 1) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_mp_add_~i~0#1| 257) (= (mod |ULTIMATE.start_mp_add_~carry~0#1| 65536) 0) (<= 1 |ULTIMATE.start_mp_add_~nb~0#1|) (<= 0 |ULTIMATE.start_mp_add_~i~0#1|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_mp_add_~na~0#1| 3) (<= |ULTIMATE.start_mp_add_~nb~0#1| 1) (<= |#NULL.base| 0) (not (< (mod |ULTIMATE.start_mp_add_~i~0#1| 256) 4)) (<= 3 |ULTIMATE.start_mp_add_~na~0#1|) (<= 0 |ULTIMATE.start_mp_add_~carry~0#1|) (<= 0 |#NULL.offset|) (not (<= (* (mod |ULTIMATE.start_mp_add_~r3~0#1| 256) 16777216) 2147483647)) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 13:33:13,290 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:33:13,290 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:33:13,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2022-12-14 13:33:13,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463284712] [2022-12-14 13:33:13,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:33:13,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 13:33:13,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:33:13,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 13:33:13,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=1282, Unknown=0, NotChecked=0, Total=1560 [2022-12-14 13:33:13,292 INFO L87 Difference]: Start difference. First operand 3781 states and 4664 transitions. Second operand has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 13 states have internal predecessors, (96), 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) [2022-12-14 13:33:15,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:15,872 INFO L93 Difference]: Finished difference Result 13575 states and 16821 transitions. [2022-12-14 13:33:15,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-14 13:33:15,873 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 13 states have internal predecessors, (96), 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) Word has length 73 [2022-12-14 13:33:15,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:15,878 INFO L225 Difference]: With dead ends: 13575 [2022-12-14 13:33:15,879 INFO L226 Difference]: Without dead ends: 9029 [2022-12-14 13:33:15,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 211 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2770 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1163, Invalid=5977, Unknown=0, NotChecked=0, Total=7140 [2022-12-14 13:33:15,883 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 765 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:15,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 643 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 13:33:15,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9029 states. [2022-12-14 13:33:16,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9029 to 3870. [2022-12-14 13:33:16,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3870 states, 3869 states have (on average 1.2021194107004394) internal successors, (4651), 3869 states have internal predecessors, (4651), 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) [2022-12-14 13:33:16,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3870 states to 3870 states and 4651 transitions. [2022-12-14 13:33:16,239 INFO L78 Accepts]: Start accepts. Automaton has 3870 states and 4651 transitions. Word has length 73 [2022-12-14 13:33:16,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:16,239 INFO L495 AbstractCegarLoop]: Abstraction has 3870 states and 4651 transitions. [2022-12-14 13:33:16,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 13 states have internal predecessors, (96), 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) [2022-12-14 13:33:16,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3870 states and 4651 transitions. [2022-12-14 13:33:16,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 13:33:16,241 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:16,241 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:16,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-12-14 13:33:16,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-12-14 13:33:16,442 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:16,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:16,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1685651661, now seen corresponding path program 1 times [2022-12-14 13:33:16,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:33:16,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320948433] [2022-12-14 13:33:16,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:16,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:33:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:16,584 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 13:33:16,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:33:16,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320948433] [2022-12-14 13:33:16,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320948433] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:33:16,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784733811] [2022-12-14 13:33:16,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:16,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:33:16,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:33:16,585 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:33:16,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-12-14 13:33:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:16,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 13:33:16,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:16,865 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 13:33:16,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:33:16,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784733811] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:33:16,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 13:33:16,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 13 [2022-12-14 13:33:16,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403542296] [2022-12-14 13:33:16,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:33:16,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 13:33:16,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:33:16,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 13:33:16,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-12-14 13:33:16,867 INFO L87 Difference]: Start difference. First operand 3870 states and 4651 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 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) [2022-12-14 13:33:17,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:17,570 INFO L93 Difference]: Finished difference Result 6425 states and 7659 transitions. [2022-12-14 13:33:17,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 13:33:17,571 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 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) Word has length 73 [2022-12-14 13:33:17,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:17,574 INFO L225 Difference]: With dead ends: 6425 [2022-12-14 13:33:17,574 INFO L226 Difference]: Without dead ends: 4828 [2022-12-14 13:33:17,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2022-12-14 13:33:17,575 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 196 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:17,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 667 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:33:17,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4828 states. [2022-12-14 13:33:17,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4828 to 4417. [2022-12-14 13:33:17,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 4416 states have (on average 1.196784420289855) internal successors, (5285), 4416 states have internal predecessors, (5285), 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) [2022-12-14 13:33:17,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 5285 transitions. [2022-12-14 13:33:17,954 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 5285 transitions. Word has length 73 [2022-12-14 13:33:17,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:17,954 INFO L495 AbstractCegarLoop]: Abstraction has 4417 states and 5285 transitions. [2022-12-14 13:33:17,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 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) [2022-12-14 13:33:17,954 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 5285 transitions. [2022-12-14 13:33:17,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 13:33:17,955 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:17,956 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:17,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-12-14 13:33:18,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-12-14 13:33:18,157 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:18,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:18,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1645960443, now seen corresponding path program 1 times [2022-12-14 13:33:18,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:33:18,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311397491] [2022-12-14 13:33:18,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:18,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:33:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:18,338 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 16 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:18,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:33:18,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311397491] [2022-12-14 13:33:18,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311397491] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:33:18,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850970853] [2022-12-14 13:33:18,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:18,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:33:18,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:33:18,339 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:33:18,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-12-14 13:33:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:18,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 13:33:18,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:18,558 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 13:33:18,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:33:19,961 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 13:33:19,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850970853] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:33:19,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2072276311] [2022-12-14 13:33:19,962 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2022-12-14 13:33:19,962 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:33:19,963 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:33:19,963 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:33:19,963 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:33:28,900 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:33:32,686 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '163303#(and (<= |ULTIMATE.start_mp_add_~carry~0#1| 1) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_mp_add_~i~0#1| 257) (= (mod |ULTIMATE.start_mp_add_~carry~0#1| 65536) 0) (<= 1 |ULTIMATE.start_mp_add_~nb~0#1|) (<= 0 |ULTIMATE.start_mp_add_~i~0#1|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_mp_add_~na~0#1| 3) (<= |ULTIMATE.start_mp_add_~nb~0#1| 1) (<= |#NULL.base| 0) (not (< (mod |ULTIMATE.start_mp_add_~i~0#1| 256) 4)) (<= 3 |ULTIMATE.start_mp_add_~na~0#1|) (<= 0 |ULTIMATE.start_mp_add_~carry~0#1|) (<= 0 |#NULL.offset|) (not (<= (* (mod |ULTIMATE.start_mp_add_~r3~0#1| 256) 16777216) 2147483647)) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 13:33:32,686 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:33:32,687 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:33:32,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 9] total 19 [2022-12-14 13:33:32,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978045165] [2022-12-14 13:33:32,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:33:32,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-14 13:33:32,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:33:32,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-14 13:33:32,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=1744, Unknown=0, NotChecked=0, Total=2070 [2022-12-14 13:33:32,689 INFO L87 Difference]: Start difference. First operand 4417 states and 5285 transitions. Second operand has 19 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 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) [2022-12-14 13:33:34,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:34,465 INFO L93 Difference]: Finished difference Result 7767 states and 9266 transitions. [2022-12-14 13:33:34,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-14 13:33:34,465 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 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) Word has length 73 [2022-12-14 13:33:34,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:34,468 INFO L225 Difference]: With dead ends: 7767 [2022-12-14 13:33:34,468 INFO L226 Difference]: Without dead ends: 3238 [2022-12-14 13:33:34,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 192 SyntacticMatches, 3 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2041 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=867, Invalid=4683, Unknown=0, NotChecked=0, Total=5550 [2022-12-14 13:33:34,471 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 565 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:34,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 484 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 13:33:34,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3238 states. [2022-12-14 13:33:34,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3238 to 1926. [2022-12-14 13:33:34,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1926 states, 1925 states have (on average 1.1423376623376624) internal successors, (2199), 1925 states have internal predecessors, (2199), 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) [2022-12-14 13:33:34,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2199 transitions. [2022-12-14 13:33:34,656 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2199 transitions. Word has length 73 [2022-12-14 13:33:34,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:34,656 INFO L495 AbstractCegarLoop]: Abstraction has 1926 states and 2199 transitions. [2022-12-14 13:33:34,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 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) [2022-12-14 13:33:34,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2199 transitions. [2022-12-14 13:33:34,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 13:33:34,657 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:34,657 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:34,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-12-14 13:33:34,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:33:34,858 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:34,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:34,859 INFO L85 PathProgramCache]: Analyzing trace with hash 190625749, now seen corresponding path program 1 times [2022-12-14 13:33:34,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:33:34,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158470159] [2022-12-14 13:33:34,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:34,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:33:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:33:34,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:33:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:33:34,979 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:33:34,979 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:33:34,980 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 41 remaining) [2022-12-14 13:33:34,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 41 remaining) [2022-12-14 13:33:34,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 41 remaining) [2022-12-14 13:33:34,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 41 remaining) [2022-12-14 13:33:34,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 41 remaining) [2022-12-14 13:33:34,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 41 remaining) [2022-12-14 13:33:34,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 41 remaining) [2022-12-14 13:33:34,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 41 remaining) [2022-12-14 13:33:34,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 41 remaining) [2022-12-14 13:33:34,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 41 remaining) [2022-12-14 13:33:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 41 remaining) [2022-12-14 13:33:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 41 remaining) [2022-12-14 13:33:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 41 remaining) [2022-12-14 13:33:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 41 remaining) [2022-12-14 13:33:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 41 remaining) [2022-12-14 13:33:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 41 remaining) [2022-12-14 13:33:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 41 remaining) [2022-12-14 13:33:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 41 remaining) [2022-12-14 13:33:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 41 remaining) [2022-12-14 13:33:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 41 remaining) [2022-12-14 13:33:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 41 remaining) [2022-12-14 13:33:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 41 remaining) [2022-12-14 13:33:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 41 remaining) [2022-12-14 13:33:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 41 remaining) [2022-12-14 13:33:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 41 remaining) [2022-12-14 13:33:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 41 remaining) [2022-12-14 13:33:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 41 remaining) [2022-12-14 13:33:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 41 remaining) [2022-12-14 13:33:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 41 remaining) [2022-12-14 13:33:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 41 remaining) [2022-12-14 13:33:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 41 remaining) [2022-12-14 13:33:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 41 remaining) [2022-12-14 13:33:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 41 remaining) [2022-12-14 13:33:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 41 remaining) [2022-12-14 13:33:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 41 remaining) [2022-12-14 13:33:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 41 remaining) [2022-12-14 13:33:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 41 remaining) [2022-12-14 13:33:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 41 remaining) [2022-12-14 13:33:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 41 remaining) [2022-12-14 13:33:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 41 remaining) [2022-12-14 13:33:34,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 41 remaining) [2022-12-14 13:33:34,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-14 13:33:34,987 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:34,990 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:33:35,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:33:35 BoogieIcfgContainer [2022-12-14 13:33:35,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:33:35,040 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:33:35,040 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:33:35,040 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:33:35,040 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:30:45" (3/4) ... [2022-12-14 13:33:35,043 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:33:35,043 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:33:35,043 INFO L158 Benchmark]: Toolchain (without parser) took 170103.47ms. Allocated memory was 132.1MB in the beginning and 704.6MB in the end (delta: 572.5MB). Free memory was 92.8MB in the beginning and 226.0MB in the end (delta: -133.3MB). Peak memory consumption was 442.0MB. Max. memory is 16.1GB. [2022-12-14 13:33:35,043 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 132.1MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:33:35,043 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.53ms. Allocated memory is still 132.1MB. Free memory was 92.4MB in the beginning and 80.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 13:33:35,043 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.77ms. Allocated memory is still 132.1MB. Free memory was 80.2MB in the beginning and 77.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 13:33:35,044 INFO L158 Benchmark]: Boogie Preprocessor took 24.80ms. Allocated memory is still 132.1MB. Free memory was 77.0MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:33:35,044 INFO L158 Benchmark]: RCFGBuilder took 627.14ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 74.9MB in the beginning and 101.8MB in the end (delta: -26.9MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2022-12-14 13:33:35,044 INFO L158 Benchmark]: TraceAbstraction took 169200.96ms. Allocated memory was 159.4MB in the beginning and 704.6MB in the end (delta: 545.3MB). Free memory was 101.8MB in the beginning and 226.0MB in the end (delta: -124.2MB). Peak memory consumption was 420.8MB. Max. memory is 16.1GB. [2022-12-14 13:33:35,044 INFO L158 Benchmark]: Witness Printer took 2.94ms. Allocated memory is still 704.6MB. Free memory is still 226.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:33:35,045 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 132.1MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.53ms. Allocated memory is still 132.1MB. Free memory was 92.4MB in the beginning and 80.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.77ms. Allocated memory is still 132.1MB. Free memory was 80.2MB in the beginning and 77.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.80ms. Allocated memory is still 132.1MB. Free memory was 77.0MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 627.14ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 74.9MB in the beginning and 101.8MB in the end (delta: -26.9MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * TraceAbstraction took 169200.96ms. Allocated memory was 159.4MB in the beginning and 704.6MB in the end (delta: 545.3MB). Free memory was 101.8MB in the beginning and 226.0MB in the end (delta: -124.2MB). Peak memory consumption was 420.8MB. Max. memory is 16.1GB. * Witness Printer took 2.94ms. Allocated memory is still 704.6MB. Free memory is still 226.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 96. Possible FailurePath: [L124] unsigned int a, b, r; [L126] a = __VERIFIER_nondet_uint() [L127] b = __VERIFIER_nondet_uint() [L129] CALL mp_add(a, b) [L42] unsigned char a0, a1, a2, a3; [L43] unsigned char b0, b1, b2, b3; [L44] unsigned char r0, r1, r2, r3; [L45] unsigned short carry; [L46] unsigned short partial_sum; [L47] unsigned int r; [L48] unsigned char i; [L49] unsigned char na, nb; [L50] a0 = a [L51] a1 = a >> 8 [L52] a2 = a >> 16U [L53] a3 = a >> 24U [L54] b0 = b [L55] b1 = b >> 8U [L56] b2 = b >> 16U [L57] b3 = b >> 24U [L58] na = (unsigned char)4 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, na=4] [L59] COND TRUE a3 == (unsigned char)0 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, na=4] [L60] EXPR na - 1 [L60] na = na - 1 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, na=3] [L61] COND TRUE a2 == (unsigned char)0 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, na=3] [L62] EXPR na - 1 [L62] na = na - 1 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, na=2] [L63] COND TRUE a1 == (unsigned char)0 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, na=2] [L64] EXPR na - 1 [L64] na = na - 1 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, na=1] [L68] nb = (unsigned char)4 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, na=1, nb=4] [L69] COND FALSE !(b3 == (unsigned char)0) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, na=1, nb=4] [L78] carry = (unsigned short)0 [L79] i = (unsigned char)0 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=0, na=1, nb=4] [L80] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L81] partial_sum = carry [L82] carry = (unsigned short)0 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=0] [L83] COND TRUE i < na VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=0] [L84] COND TRUE i == (unsigned char)0 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=0] [L84] EXPR partial_sum + a0 [L84] partial_sum = partial_sum + a0 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=0] [L85] COND FALSE !(i == (unsigned char)1) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=0] [L86] COND FALSE !(i == (unsigned char)2) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=0] [L87] COND FALSE !(i == (unsigned char)3) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=0] [L89] COND TRUE i < nb VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=0] [L90] COND TRUE i == (unsigned char)0 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=0] [L90] EXPR partial_sum + b0 [L90] partial_sum = partial_sum + b0 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=255] [L91] COND FALSE !(i == (unsigned char)1) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=255] [L92] COND FALSE !(i == (unsigned char)2) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=255] [L93] COND FALSE !(i == (unsigned char)3) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=255] [L95] COND TRUE partial_sum > ((unsigned char)254) [L96] partial_sum = partial_sum & ((unsigned char)255) [L97] carry = (unsigned short)1 [L99] COND TRUE i == (unsigned char)0 [L99] r0 = (unsigned char)partial_sum [L100] COND FALSE !(i == (unsigned char)1) [L101] COND FALSE !(i == (unsigned char)2) [L102] COND FALSE !(i == (unsigned char)3) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=1, i=0, na=1, nb=4, partial_sum=255, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=257, r2=1, r3=1] [L104] EXPR i + (unsigned char)1 [L104] i = i + (unsigned char)1 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=1, i=1, na=1, nb=4, partial_sum=255, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=257, r2=1, r3=1] [L80] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L81] partial_sum = carry [L82] carry = (unsigned short)0 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=1, na=1, nb=4, partial_sum=1, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=257, r2=1, r3=1] [L83] COND FALSE !(i < na) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=1, na=1, nb=4, partial_sum=1, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=257, r2=1, r3=1] [L89] COND TRUE i < nb VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=1, na=1, nb=4, partial_sum=1, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=257, r2=1, r3=1] [L90] COND FALSE !(i == (unsigned char)0) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=1, na=1, nb=4, partial_sum=1, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=257, r2=1, r3=1] [L91] COND TRUE i == (unsigned char)1 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=1, na=1, nb=4, partial_sum=1, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=257, r2=1, r3=1] [L91] EXPR partial_sum + b1 [L91] partial_sum = partial_sum + b1 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=1, na=1, nb=4, partial_sum=256, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=257, r2=1, r3=1] [L92] COND FALSE !(i == (unsigned char)2) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=1, na=1, nb=4, partial_sum=256, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=257, r2=1, r3=1] [L93] COND FALSE !(i == (unsigned char)3) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=1, na=1, nb=4, partial_sum=256, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=257, r2=1, r3=1] [L95] COND TRUE partial_sum > ((unsigned char)254) [L96] partial_sum = partial_sum & ((unsigned char)255) [L97] carry = (unsigned short)1 [L99] COND FALSE !(i == (unsigned char)0) [L100] COND TRUE i == (unsigned char)1 [L100] r1 = (unsigned char)partial_sum [L101] COND FALSE !(i == (unsigned char)2) [L102] COND FALSE !(i == (unsigned char)3) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=1, i=1, na=1, nb=4, partial_sum=0, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L104] EXPR i + (unsigned char)1 [L104] i = i + (unsigned char)1 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=1, i=2, na=1, nb=4, partial_sum=0, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L80] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L81] partial_sum = carry [L82] carry = (unsigned short)0 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=1, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L83] COND FALSE !(i < na) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=1, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L89] COND TRUE i < nb VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=1, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L90] COND FALSE !(i == (unsigned char)0) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=1, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L91] COND FALSE !(i == (unsigned char)1) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=1, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L92] COND TRUE i == (unsigned char)2 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=1, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L92] EXPR partial_sum + b2 [L92] partial_sum = partial_sum + b2 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=1, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L93] COND FALSE !(i == (unsigned char)3) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=1, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L95] COND FALSE !(partial_sum > ((unsigned char)254)) [L99] COND FALSE !(i == (unsigned char)0) [L100] COND FALSE !(i == (unsigned char)1) [L101] COND TRUE i == (unsigned char)2 [L101] r2 = (unsigned char)partial_sum [L102] COND FALSE !(i == (unsigned char)3) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=1, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L104] EXPR i + (unsigned char)1 [L104] i = i + (unsigned char)1 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=1, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L80] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L81] partial_sum = carry [L82] carry = (unsigned short)0 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=0, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L83] COND FALSE !(i < na) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=0, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L89] COND TRUE i < nb VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=0, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L90] COND FALSE !(i == (unsigned char)0) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=0, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L91] COND FALSE !(i == (unsigned char)1) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=0, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L92] COND FALSE !(i == (unsigned char)2) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=0, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L93] COND TRUE i == (unsigned char)3 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=0, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L93] EXPR partial_sum + b3 [L93] partial_sum = partial_sum + b3 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=128, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=1] [L95] COND FALSE !(partial_sum > ((unsigned char)254)) [L99] COND FALSE !(i == (unsigned char)0) [L100] COND FALSE !(i == (unsigned char)1) [L101] COND FALSE !(i == (unsigned char)2) [L102] COND TRUE i == (unsigned char)3 [L102] r3 = (unsigned char)partial_sum VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=128, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=128] [L104] EXPR i + (unsigned char)1 [L104] i = i + (unsigned char)1 VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=4, na=1, nb=4, partial_sum=128, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=128] [L80] COND FALSE !((i < na) || (i < nb) || (carry != (unsigned short)0)) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=4, na=1, nb=4, partial_sum=128, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=128] [L107] COND FALSE !(i < (unsigned char)4) VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=4, na=1, nb=4, partial_sum=128, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=128] [L116] r1 << 8U VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=4, na=1, nb=4, partial_sum=128, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=128] [L116] r2 << 16U VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=4, na=1, nb=4, partial_sum=128, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=128] [L116] r3 << 24U VAL [\old(a)=0, \old(b)=2147549183, a=0, a0=0, a1=0, a2=0, a3=0, b=2147549183, b0=-2147418113, b1=-8388353, b2=-32768, b3=-128, carry=0, i=4, na=1, nb=4, partial_sum=128, partial_sum = partial_sum & ((unsigned char)255)=259, r0=255, r1=0, r2=1, r3=128] - UnprovableResult [Line: 60]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 84]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 84]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 93]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 93]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 105 locations, 41 error locations. Started 1 CEGAR loops. OverallTime: 169.1s, OverallIterations: 35, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 30.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11242 SdHoareTripleChecker+Valid, 18.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11242 mSDsluCounter, 27729 SdHoareTripleChecker+Invalid, 16.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22437 mSDsCounter, 577 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14791 IncrementalHoareTripleChecker+Invalid, 15368 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 577 mSolverCounterUnsat, 5292 mSDtfsCounter, 14791 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3330 GetRequests, 2483 SyntacticMatches, 77 SemanticMatches, 770 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13792 ImplicationChecksByTransitivity, 69.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4417occurred in iteration=33, InterpolantAutomatonStates: 450, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.8s AutomataMinimizationTime, 34 MinimizatonAttempts, 19960 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 14.1s InterpolantComputationTime, 3104 NumberOfCodeBlocks, 3104 NumberOfCodeBlocksAsserted, 61 NumberOfCheckSat, 3705 ConstructedInterpolants, 2 QuantifiedInterpolants, 19618 SizeOfPredicates, 121 NumberOfNonLiveVariables, 3697 ConjunctsInSsa, 405 ConjunctsInUnsatCore, 73 InterpolantComputations, 21 PerfectInterpolantSequences, 1458/1791 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: OVERALL_TIME: 1.9s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 7, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 199, DAG_INTERPRETER_EARLY_EXITS: 34, TOOLS_POST_APPLICATIONS: 245, TOOLS_POST_TIME: 0.9s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 235, TOOLS_QUANTIFIERELIM_TIME: 0.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 420, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 21, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 7, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 199, DOMAIN_ISBOTTOM_TIME: 0.7s, LOOP_SUMMARIZER_APPLICATIONS: 7, LOOP_SUMMARIZER_CACHE_MISSES: 7, LOOP_SUMMARIZER_OVERALL_TIME: 0.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 7, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 14807, DAG_COMPRESSION_RETAINED_NODES: 767, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 13:33:35,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/byte_add-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac64f5b077f8251002b0bb05f1aba070a52d8bbef53fa94e35704949c96b0f7c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:33:36,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:33:36,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:33:36,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:33:36,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:33:36,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:33:36,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:33:36,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:33:36,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:33:36,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:33:36,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:33:36,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:33:36,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:33:36,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:33:36,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:33:36,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:33:36,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:33:36,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:33:36,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:33:36,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:33:36,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:33:36,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:33:36,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:33:36,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:33:36,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:33:36,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:33:36,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:33:36,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:33:36,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:33:36,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:33:36,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:33:36,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:33:36,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:33:36,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:33:36,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:33:36,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:33:36,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:33:36,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:33:36,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:33:36,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:33:36,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:33:36,840 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2022-12-14 13:33:36,870 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:33:36,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:33:36,871 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:33:36,871 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:33:36,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:33:36,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:33:36,872 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:33:36,872 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:33:36,872 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:33:36,873 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:33:36,873 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:33:36,873 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:33:36,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:33:36,874 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:33:36,874 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:33:36,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:33:36,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:33:36,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:33:36,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:33:36,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:33:36,875 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:33:36,875 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 13:33:36,876 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:33:36,876 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 13:33:36,876 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:33:36,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:33:36,876 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:33:36,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:33:36,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:33:36,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 13:33:36,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:33:36,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:33:36,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:33:36,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:33:36,878 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:33:36,878 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 13:33:36,878 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 13:33:36,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:33:36,879 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:33:36,879 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 13:33:36,879 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac64f5b077f8251002b0bb05f1aba070a52d8bbef53fa94e35704949c96b0f7c [2022-12-14 13:33:37,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:33:37,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:33:37,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:33:37,127 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:33:37,127 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:33:37,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/bitvector/byte_add-2.i [2022-12-14 13:33:39,644 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:33:39,788 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:33:39,789 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/sv-benchmarks/c/bitvector/byte_add-2.i [2022-12-14 13:33:39,795 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/data/118dedfe5/e6ac655de516414681f0ea3983451c60/FLAGa0a8f0912 [2022-12-14 13:33:39,806 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/data/118dedfe5/e6ac655de516414681f0ea3983451c60 [2022-12-14 13:33:39,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:33:39,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:33:39,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:33:39,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:33:39,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:33:39,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:33:39" (1/1) ... [2022-12-14 13:33:39,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23895510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:33:39, skipping insertion in model container [2022-12-14 13:33:39,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:33:39" (1/1) ... [2022-12-14 13:33:39,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:33:39,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:33:39,941 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_a5179305-21ee-471b-9a78-0ef9d197d43e/sv-benchmarks/c/bitvector/byte_add-2.i[1166,1179] [2022-12-14 13:33:39,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:33:39,978 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:33:39,988 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_a5179305-21ee-471b-9a78-0ef9d197d43e/sv-benchmarks/c/bitvector/byte_add-2.i[1166,1179] [2022-12-14 13:33:40,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:33:40,014 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:33:40,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:33:40 WrapperNode [2022-12-14 13:33:40,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:33:40,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:33:40,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:33:40,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:33:40,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:33:40" (1/1) ... [2022-12-14 13:33:40,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:33:40" (1/1) ... [2022-12-14 13:33:40,046 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 165 [2022-12-14 13:33:40,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:33:40,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:33:40,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:33:40,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:33:40,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:33:40" (1/1) ... [2022-12-14 13:33:40,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:33:40" (1/1) ... [2022-12-14 13:33:40,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:33:40" (1/1) ... [2022-12-14 13:33:40,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:33:40" (1/1) ... [2022-12-14 13:33:40,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:33:40" (1/1) ... [2022-12-14 13:33:40,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:33:40" (1/1) ... [2022-12-14 13:33:40,068 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:33:40" (1/1) ... [2022-12-14 13:33:40,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:33:40" (1/1) ... [2022-12-14 13:33:40,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:33:40,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:33:40,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:33:40,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:33:40,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:33:40" (1/1) ... [2022-12-14 13:33:40,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:33:40,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:33:40,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:33:40,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:33:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:33:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 13:33:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:33:40,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:33:40,211 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:33:40,213 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:33:40,535 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:33:40,540 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:33:40,540 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 13:33:40,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:33:40 BoogieIcfgContainer [2022-12-14 13:33:40,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:33:40,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:33:40,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:33:40,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:33:40,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:33:39" (1/3) ... [2022-12-14 13:33:40,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546d5b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:33:40, skipping insertion in model container [2022-12-14 13:33:40,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:33:40" (2/3) ... [2022-12-14 13:33:40,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546d5b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:33:40, skipping insertion in model container [2022-12-14 13:33:40,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:33:40" (3/3) ... [2022-12-14 13:33:40,548 INFO L112 eAbstractionObserver]: Analyzing ICFG byte_add-2.i [2022-12-14 13:33:40,562 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:33:40,562 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2022-12-14 13:33:40,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:33:40,605 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46d494da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:33:40,606 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2022-12-14 13:33:40,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 78 states have (on average 1.9102564102564104) internal successors, (149), 119 states have internal predecessors, (149), 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) [2022-12-14 13:33:40,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 13:33:40,614 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:40,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 13:33:40,615 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:40,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:40,619 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-12-14 13:33:40,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:40,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265198678] [2022-12-14 13:33:40,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:40,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:40,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:40,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:40,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 13:33:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:40,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 13:33:40,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:40,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:40,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:33:40,701 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:40,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [265198678] [2022-12-14 13:33:40,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [265198678] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:33:40,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:33:40,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 13:33:40,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756311347] [2022-12-14 13:33:40,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:33:40,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:33:40,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:40,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:33:40,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:33:40,728 INFO L87 Difference]: Start difference. First operand has 120 states, 78 states have (on average 1.9102564102564104) internal successors, (149), 119 states have internal predecessors, (149), 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) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-12-14 13:33:40,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:40,744 INFO L93 Difference]: Finished difference Result 144 states and 189 transitions. [2022-12-14 13:33:40,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:33:40,746 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-12-14 13:33:40,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:40,753 INFO L225 Difference]: With dead ends: 144 [2022-12-14 13:33:40,754 INFO L226 Difference]: Without dead ends: 73 [2022-12-14 13:33:40,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:33:40,759 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:40,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:33:40,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-12-14 13:33:40,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-12-14 13:33:40,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.375) internal successors, (99), 72 states have internal predecessors, (99), 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) [2022-12-14 13:33:40,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 99 transitions. [2022-12-14 13:33:40,792 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 99 transitions. Word has length 4 [2022-12-14 13:33:40,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:40,792 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 99 transitions. [2022-12-14 13:33:40,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-12-14 13:33:40,793 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 99 transitions. [2022-12-14 13:33:40,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 13:33:40,793 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:40,794 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:40,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:33:40,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:40,996 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:40,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:40,998 INFO L85 PathProgramCache]: Analyzing trace with hash -421267094, now seen corresponding path program 1 times [2022-12-14 13:33:40,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:41,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124618085] [2022-12-14 13:33:41,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:41,000 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:41,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:41,004 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:41,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 13:33:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:41,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:33:41,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:41,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:41,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:33:41,223 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:41,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124618085] [2022-12-14 13:33:41,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124618085] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:33:41,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:33:41,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:33:41,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307084163] [2022-12-14 13:33:41,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:33:41,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:33:41,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:41,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:33:41,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:33:41,226 INFO L87 Difference]: Start difference. First operand 73 states and 99 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-12-14 13:33:41,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:41,357 INFO L93 Difference]: Finished difference Result 199 states and 284 transitions. [2022-12-14 13:33:41,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:33:41,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) Word has length 17 [2022-12-14 13:33:41,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:41,359 INFO L225 Difference]: With dead ends: 199 [2022-12-14 13:33:41,359 INFO L226 Difference]: Without dead ends: 148 [2022-12-14 13:33:41,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:33:41,361 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 125 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:41,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 237 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:33:41,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-12-14 13:33:41,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 134. [2022-12-14 13:33:41,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.3759398496240602) internal successors, (183), 133 states have internal predecessors, (183), 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) [2022-12-14 13:33:41,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 183 transitions. [2022-12-14 13:33:41,374 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 183 transitions. Word has length 17 [2022-12-14 13:33:41,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:41,375 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 183 transitions. [2022-12-14 13:33:41,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-12-14 13:33:41,375 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 183 transitions. [2022-12-14 13:33:41,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 13:33:41,376 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:41,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:41,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 13:33:41,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:41,578 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:41,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:41,580 INFO L85 PathProgramCache]: Analyzing trace with hash -910778517, now seen corresponding path program 1 times [2022-12-14 13:33:41,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:41,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1271948926] [2022-12-14 13:33:41,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:41,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:41,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:41,586 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:41,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-14 13:33:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:41,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 13:33:41,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:41,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:41,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:33:41,782 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:41,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1271948926] [2022-12-14 13:33:41,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1271948926] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:33:41,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:33:41,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:33:41,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088419004] [2022-12-14 13:33:41,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:33:41,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:33:41,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:41,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:33:41,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:33:41,784 INFO L87 Difference]: Start difference. First operand 134 states and 183 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2022-12-14 13:33:41,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:41,991 INFO L93 Difference]: Finished difference Result 270 states and 377 transitions. [2022-12-14 13:33:41,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:33:41,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) Word has length 20 [2022-12-14 13:33:41,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:41,992 INFO L225 Difference]: With dead ends: 270 [2022-12-14 13:33:41,992 INFO L226 Difference]: Without dead ends: 219 [2022-12-14 13:33:41,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:33:41,993 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 167 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:41,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 540 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:33:41,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-12-14 13:33:42,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 134. [2022-12-14 13:33:42,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.3759398496240602) internal successors, (183), 133 states have internal predecessors, (183), 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) [2022-12-14 13:33:42,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 183 transitions. [2022-12-14 13:33:42,002 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 183 transitions. Word has length 20 [2022-12-14 13:33:42,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:42,002 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 183 transitions. [2022-12-14 13:33:42,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2022-12-14 13:33:42,002 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 183 transitions. [2022-12-14 13:33:42,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 13:33:42,004 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:42,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:42,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-14 13:33:42,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:42,205 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:42,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:42,206 INFO L85 PathProgramCache]: Analyzing trace with hash 257208349, now seen corresponding path program 1 times [2022-12-14 13:33:42,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:42,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503988966] [2022-12-14 13:33:42,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:42,207 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:42,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:42,209 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:42,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-14 13:33:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:42,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:33:42,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:42,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:42,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:33:42,381 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:42,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503988966] [2022-12-14 13:33:42,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503988966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:33:42,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:33:42,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 13:33:42,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670590602] [2022-12-14 13:33:42,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:33:42,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 13:33:42,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:42,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 13:33:42,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 13:33:42,383 INFO L87 Difference]: Start difference. First operand 134 states and 183 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2022-12-14 13:33:42,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:42,622 INFO L93 Difference]: Finished difference Result 341 states and 470 transitions. [2022-12-14 13:33:42,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:33:42,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) Word has length 23 [2022-12-14 13:33:42,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:42,624 INFO L225 Difference]: With dead ends: 341 [2022-12-14 13:33:42,624 INFO L226 Difference]: Without dead ends: 290 [2022-12-14 13:33:42,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 13:33:42,626 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 240 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:42,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 928 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:33:42,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-12-14 13:33:42,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 134. [2022-12-14 13:33:42,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.3759398496240602) internal successors, (183), 133 states have internal predecessors, (183), 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) [2022-12-14 13:33:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 183 transitions. [2022-12-14 13:33:42,638 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 183 transitions. Word has length 23 [2022-12-14 13:33:42,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:42,638 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 183 transitions. [2022-12-14 13:33:42,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2022-12-14 13:33:42,638 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 183 transitions. [2022-12-14 13:33:42,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 13:33:42,639 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:42,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:42,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-14 13:33:42,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:42,841 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:42,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:42,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1925420263, now seen corresponding path program 1 times [2022-12-14 13:33:42,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:42,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1295342436] [2022-12-14 13:33:42,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:42,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:42,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:42,848 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:42,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 13:33:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:42,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 13:33:42,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:43,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:43,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:33:43,066 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:43,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1295342436] [2022-12-14 13:33:43,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1295342436] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:33:43,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:33:43,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 13:33:43,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074114657] [2022-12-14 13:33:43,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:33:43,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 13:33:43,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:43,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 13:33:43,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-14 13:33:43,069 INFO L87 Difference]: Start difference. First operand 134 states and 183 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2022-12-14 13:33:43,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:43,292 INFO L93 Difference]: Finished difference Result 350 states and 477 transitions. [2022-12-14 13:33:43,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 13:33:43,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) Word has length 25 [2022-12-14 13:33:43,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:43,294 INFO L225 Difference]: With dead ends: 350 [2022-12-14 13:33:43,294 INFO L226 Difference]: Without dead ends: 299 [2022-12-14 13:33:43,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-14 13:33:43,296 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 297 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:43,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1172 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:33:43,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-12-14 13:33:43,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 133. [2022-12-14 13:33:43,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.3257575757575757) internal successors, (175), 132 states have internal predecessors, (175), 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) [2022-12-14 13:33:43,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 175 transitions. [2022-12-14 13:33:43,307 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 175 transitions. Word has length 25 [2022-12-14 13:33:43,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:43,307 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 175 transitions. [2022-12-14 13:33:43,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2022-12-14 13:33:43,307 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 175 transitions. [2022-12-14 13:33:43,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 13:33:43,308 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:43,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:43,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 13:33:43,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:43,510 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:43,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:43,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1851756503, now seen corresponding path program 1 times [2022-12-14 13:33:43,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:43,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305251651] [2022-12-14 13:33:43,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:43,513 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:43,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:43,516 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:43,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-14 13:33:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:43,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:33:43,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:43,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:43,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:33:43,625 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:43,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305251651] [2022-12-14 13:33:43,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305251651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:33:43,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:33:43,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:33:43,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227320803] [2022-12-14 13:33:43,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:33:43,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:33:43,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:43,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:33:43,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:33:43,627 INFO L87 Difference]: Start difference. First operand 133 states and 175 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-12-14 13:33:43,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:43,735 INFO L93 Difference]: Finished difference Result 366 states and 481 transitions. [2022-12-14 13:33:43,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:33:43,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) Word has length 33 [2022-12-14 13:33:43,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:43,737 INFO L225 Difference]: With dead ends: 366 [2022-12-14 13:33:43,737 INFO L226 Difference]: Without dead ends: 262 [2022-12-14 13:33:43,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:33:43,738 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 103 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:43,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 292 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:33:43,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-12-14 13:33:43,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 149. [2022-12-14 13:33:43,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 148 states have (on average 1.3108108108108107) internal successors, (194), 148 states have internal predecessors, (194), 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) [2022-12-14 13:33:43,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 194 transitions. [2022-12-14 13:33:43,744 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 194 transitions. Word has length 33 [2022-12-14 13:33:43,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:43,744 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 194 transitions. [2022-12-14 13:33:43,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-12-14 13:33:43,744 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 194 transitions. [2022-12-14 13:33:43,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 13:33:43,745 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:43,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:43,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-14 13:33:43,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:43,947 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:43,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:43,948 INFO L85 PathProgramCache]: Analyzing trace with hash 800423347, now seen corresponding path program 1 times [2022-12-14 13:33:43,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:43,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185202069] [2022-12-14 13:33:43,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:43,950 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:43,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:43,953 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:43,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-14 13:33:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:44,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 13:33:44,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:44,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:44,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:33:44,071 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:44,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185202069] [2022-12-14 13:33:44,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185202069] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:33:44,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:33:44,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:33:44,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704212571] [2022-12-14 13:33:44,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:33:44,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:33:44,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:44,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:33:44,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:33:44,072 INFO L87 Difference]: Start difference. First operand 149 states and 194 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) [2022-12-14 13:33:44,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:44,262 INFO L93 Difference]: Finished difference Result 563 states and 773 transitions. [2022-12-14 13:33:44,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 13:33:44,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) Word has length 36 [2022-12-14 13:33:44,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:44,266 INFO L225 Difference]: With dead ends: 563 [2022-12-14 13:33:44,266 INFO L226 Difference]: Without dead ends: 453 [2022-12-14 13:33:44,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 13:33:44,268 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 244 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:44,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 551 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:33:44,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-12-14 13:33:44,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 267. [2022-12-14 13:33:44,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 266 states have (on average 1.3195488721804511) internal successors, (351), 266 states have internal predecessors, (351), 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) [2022-12-14 13:33:44,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 351 transitions. [2022-12-14 13:33:44,282 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 351 transitions. Word has length 36 [2022-12-14 13:33:44,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:44,283 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 351 transitions. [2022-12-14 13:33:44,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) [2022-12-14 13:33:44,283 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 351 transitions. [2022-12-14 13:33:44,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 13:33:44,286 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:44,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:44,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-14 13:33:44,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:44,487 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:44,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:44,487 INFO L85 PathProgramCache]: Analyzing trace with hash 756786666, now seen corresponding path program 1 times [2022-12-14 13:33:44,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:44,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788375086] [2022-12-14 13:33:44,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:44,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:44,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:44,488 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:44,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-14 13:33:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:44,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:33:44,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:44,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:44,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:33:44,564 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:44,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788375086] [2022-12-14 13:33:44,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1788375086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:33:44,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:33:44,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 13:33:44,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958263673] [2022-12-14 13:33:44,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:33:44,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 13:33:44,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:44,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 13:33:44,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 13:33:44,566 INFO L87 Difference]: Start difference. First operand 267 states and 351 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2022-12-14 13:33:44,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:44,871 INFO L93 Difference]: Finished difference Result 894 states and 1220 transitions. [2022-12-14 13:33:44,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 13:33:44,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) Word has length 39 [2022-12-14 13:33:44,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:44,873 INFO L225 Difference]: With dead ends: 894 [2022-12-14 13:33:44,873 INFO L226 Difference]: Without dead ends: 667 [2022-12-14 13:33:44,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 13:33:44,874 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 385 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:44,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 801 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 13:33:44,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2022-12-14 13:33:44,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 428. [2022-12-14 13:33:44,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 427 states have (on average 1.3372365339578454) internal successors, (571), 427 states have internal predecessors, (571), 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) [2022-12-14 13:33:44,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 571 transitions. [2022-12-14 13:33:44,885 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 571 transitions. Word has length 39 [2022-12-14 13:33:44,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:44,886 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 571 transitions. [2022-12-14 13:33:44,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2022-12-14 13:33:44,886 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 571 transitions. [2022-12-14 13:33:44,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 13:33:44,886 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:44,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:44,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-14 13:33:45,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:45,087 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:45,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:45,088 INFO L85 PathProgramCache]: Analyzing trace with hash -690233911, now seen corresponding path program 1 times [2022-12-14 13:33:45,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:45,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140905255] [2022-12-14 13:33:45,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:45,089 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:45,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:45,090 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:45,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-14 13:33:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:45,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 13:33:45,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:45,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:45,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:33:45,315 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:45,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140905255] [2022-12-14 13:33:45,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140905255] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:33:45,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:33:45,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:33:45,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304774631] [2022-12-14 13:33:45,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:33:45,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:33:45,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:45,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:33:45,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:33:45,316 INFO L87 Difference]: Start difference. First operand 428 states and 571 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2022-12-14 13:33:45,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:45,493 INFO L93 Difference]: Finished difference Result 959 states and 1320 transitions. [2022-12-14 13:33:45,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:33:45,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) Word has length 39 [2022-12-14 13:33:45,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:45,496 INFO L225 Difference]: With dead ends: 959 [2022-12-14 13:33:45,496 INFO L226 Difference]: Without dead ends: 731 [2022-12-14 13:33:45,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:33:45,497 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 129 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:45,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 242 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:33:45,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-12-14 13:33:45,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 713. [2022-12-14 13:33:45,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 712 states have (on average 1.324438202247191) internal successors, (943), 712 states have internal predecessors, (943), 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) [2022-12-14 13:33:45,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 943 transitions. [2022-12-14 13:33:45,524 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 943 transitions. Word has length 39 [2022-12-14 13:33:45,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:45,524 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 943 transitions. [2022-12-14 13:33:45,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2022-12-14 13:33:45,525 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 943 transitions. [2022-12-14 13:33:45,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-14 13:33:45,526 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:45,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:45,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-14 13:33:45,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:45,727 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:45,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:45,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1673501962, now seen corresponding path program 1 times [2022-12-14 13:33:45,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:45,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555987658] [2022-12-14 13:33:45,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:45,727 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:45,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:45,728 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:45,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-14 13:33:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:45,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:33:45,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:45,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:45,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:33:45,852 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:45,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555987658] [2022-12-14 13:33:45,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555987658] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:33:45,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:33:45,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 13:33:45,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687171178] [2022-12-14 13:33:45,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:33:45,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 13:33:45,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:45,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 13:33:45,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 13:33:45,854 INFO L87 Difference]: Start difference. First operand 713 states and 943 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2022-12-14 13:33:46,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:46,144 INFO L93 Difference]: Finished difference Result 1254 states and 1701 transitions. [2022-12-14 13:33:46,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:33:46,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) Word has length 42 [2022-12-14 13:33:46,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:46,146 INFO L225 Difference]: With dead ends: 1254 [2022-12-14 13:33:46,146 INFO L226 Difference]: Without dead ends: 1026 [2022-12-14 13:33:46,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 13:33:46,147 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 169 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:46,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 564 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 13:33:46,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2022-12-14 13:33:46,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 713. [2022-12-14 13:33:46,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 712 states have (on average 1.324438202247191) internal successors, (943), 712 states have internal predecessors, (943), 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) [2022-12-14 13:33:46,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 943 transitions. [2022-12-14 13:33:46,179 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 943 transitions. Word has length 42 [2022-12-14 13:33:46,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:46,179 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 943 transitions. [2022-12-14 13:33:46,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2022-12-14 13:33:46,180 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 943 transitions. [2022-12-14 13:33:46,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 13:33:46,181 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:46,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:46,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-12-14 13:33:46,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:46,382 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:46,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:46,382 INFO L85 PathProgramCache]: Analyzing trace with hash 787364924, now seen corresponding path program 1 times [2022-12-14 13:33:46,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:46,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382180766] [2022-12-14 13:33:46,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:46,383 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:46,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:46,384 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:46,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-14 13:33:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:46,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 13:33:46,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:46,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:46,496 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:33:46,496 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:46,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1382180766] [2022-12-14 13:33:46,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1382180766] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:33:46,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:33:46,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 13:33:46,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296579000] [2022-12-14 13:33:46,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:33:46,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 13:33:46,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:46,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 13:33:46,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 13:33:46,497 INFO L87 Difference]: Start difference. First operand 713 states and 943 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2022-12-14 13:33:46,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:46,803 INFO L93 Difference]: Finished difference Result 1342 states and 1799 transitions. [2022-12-14 13:33:46,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 13:33:46,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) Word has length 45 [2022-12-14 13:33:46,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:46,805 INFO L225 Difference]: With dead ends: 1342 [2022-12-14 13:33:46,805 INFO L226 Difference]: Without dead ends: 1114 [2022-12-14 13:33:46,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 13:33:46,806 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 252 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:46,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 863 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 13:33:46,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2022-12-14 13:33:46,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 506. [2022-12-14 13:33:46,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.306930693069307) internal successors, (660), 505 states have internal predecessors, (660), 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) [2022-12-14 13:33:46,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 660 transitions. [2022-12-14 13:33:46,821 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 660 transitions. Word has length 45 [2022-12-14 13:33:46,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:46,821 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 660 transitions. [2022-12-14 13:33:46,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2022-12-14 13:33:46,821 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 660 transitions. [2022-12-14 13:33:46,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 13:33:46,821 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:46,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:46,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-12-14 13:33:47,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:47,022 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:47,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:47,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1203851832, now seen corresponding path program 1 times [2022-12-14 13:33:47,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:47,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665892997] [2022-12-14 13:33:47,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:47,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:47,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:47,024 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:47,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-12-14 13:33:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:47,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 13:33:47,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:47,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:47,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:33:47,139 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:47,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665892997] [2022-12-14 13:33:47,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665892997] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:33:47,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:33:47,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:33:47,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272223320] [2022-12-14 13:33:47,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:33:47,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:33:47,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:47,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:33:47,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:33:47,141 INFO L87 Difference]: Start difference. First operand 506 states and 660 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2022-12-14 13:33:47,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:47,311 INFO L93 Difference]: Finished difference Result 801 states and 1049 transitions. [2022-12-14 13:33:47,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:33:47,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) Word has length 47 [2022-12-14 13:33:47,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:47,315 INFO L225 Difference]: With dead ends: 801 [2022-12-14 13:33:47,315 INFO L226 Difference]: Without dead ends: 729 [2022-12-14 13:33:47,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:33:47,317 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 122 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:47,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 279 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:33:47,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2022-12-14 13:33:47,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 581. [2022-12-14 13:33:47,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 580 states have (on average 1.3017241379310345) internal successors, (755), 580 states have internal predecessors, (755), 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) [2022-12-14 13:33:47,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 755 transitions. [2022-12-14 13:33:47,332 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 755 transitions. Word has length 47 [2022-12-14 13:33:47,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:47,332 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 755 transitions. [2022-12-14 13:33:47,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2022-12-14 13:33:47,332 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 755 transitions. [2022-12-14 13:33:47,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-14 13:33:47,333 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:47,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:47,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-12-14 13:33:47,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:47,533 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:47,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:47,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1896715765, now seen corresponding path program 1 times [2022-12-14 13:33:47,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:47,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528074723] [2022-12-14 13:33:47,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:47,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:47,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:47,536 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:47,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-12-14 13:33:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:47,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 13:33:47,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:47,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:47,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:33:47,617 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:47,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528074723] [2022-12-14 13:33:47,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528074723] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:33:47,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:33:47,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 13:33:47,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658711322] [2022-12-14 13:33:47,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:33:47,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 13:33:47,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:47,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 13:33:47,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-14 13:33:47,619 INFO L87 Difference]: Start difference. First operand 581 states and 755 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2022-12-14 13:33:47,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:47,838 INFO L93 Difference]: Finished difference Result 904 states and 1165 transitions. [2022-12-14 13:33:47,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 13:33:47,839 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) Word has length 49 [2022-12-14 13:33:47,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:47,840 INFO L225 Difference]: With dead ends: 904 [2022-12-14 13:33:47,840 INFO L226 Difference]: Without dead ends: 736 [2022-12-14 13:33:47,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-14 13:33:47,841 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 337 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1363 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:47,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1363 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:33:47,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-12-14 13:33:47,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 537. [2022-12-14 13:33:47,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 536 states have (on average 1.291044776119403) internal successors, (692), 536 states have internal predecessors, (692), 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) [2022-12-14 13:33:47,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 692 transitions. [2022-12-14 13:33:47,854 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 692 transitions. Word has length 49 [2022-12-14 13:33:47,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:47,854 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 692 transitions. [2022-12-14 13:33:47,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2022-12-14 13:33:47,854 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 692 transitions. [2022-12-14 13:33:47,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-14 13:33:47,855 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:47,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:47,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-12-14 13:33:48,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:48,056 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:48,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:48,058 INFO L85 PathProgramCache]: Analyzing trace with hash -364654828, now seen corresponding path program 1 times [2022-12-14 13:33:48,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:48,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1433260918] [2022-12-14 13:33:48,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:48,060 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:48,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:48,063 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:48,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-12-14 13:33:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:48,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:33:48,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:48,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:48,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:33:48,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:48,331 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:48,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1433260918] [2022-12-14 13:33:48,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1433260918] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:33:48,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1166358929] [2022-12-14 13:33:48,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:48,331 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 13:33:48,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 13:33:48,332 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 13:33:48,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2022-12-14 13:33:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:48,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 13:33:48,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:48,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:48,403 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:33:48,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1166358929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:33:48,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 13:33:48,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 6] total 11 [2022-12-14 13:33:48,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863202378] [2022-12-14 13:33:48,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:33:48,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:33:48,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:48,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:33:48,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-12-14 13:33:48,405 INFO L87 Difference]: Start difference. First operand 537 states and 692 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-12-14 13:33:48,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:48,429 INFO L93 Difference]: Finished difference Result 723 states and 926 transitions. [2022-12-14 13:33:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:33:48,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) Word has length 50 [2022-12-14 13:33:48,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:48,431 INFO L225 Difference]: With dead ends: 723 [2022-12-14 13:33:48,431 INFO L226 Difference]: Without dead ends: 672 [2022-12-14 13:33:48,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-12-14 13:33:48,432 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 4 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:48,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 193 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:33:48,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-12-14 13:33:48,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 644. [2022-12-14 13:33:48,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 643 states have (on average 1.2861586314152411) internal successors, (827), 643 states have internal predecessors, (827), 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) [2022-12-14 13:33:48,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 827 transitions. [2022-12-14 13:33:48,456 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 827 transitions. Word has length 50 [2022-12-14 13:33:48,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:48,456 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 827 transitions. [2022-12-14 13:33:48,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-12-14 13:33:48,456 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 827 transitions. [2022-12-14 13:33:48,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-14 13:33:48,457 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:48,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:48,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2022-12-14 13:33:48,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-12-14 13:33:48,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:48,859 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:48,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:48,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1936167762, now seen corresponding path program 1 times [2022-12-14 13:33:48,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:48,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533174048] [2022-12-14 13:33:48,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:48,862 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:48,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:48,864 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:48,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-12-14 13:33:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:48,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:33:48,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:49,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:49,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:33:49,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:49,109 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:49,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533174048] [2022-12-14 13:33:49,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533174048] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:33:49,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1431042027] [2022-12-14 13:33:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:49,109 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 13:33:49,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 13:33:49,110 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 13:33:49,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-12-14 13:33:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:49,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:33:49,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:49,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:49,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:33:49,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:49,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1431042027] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:33:49,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982034201] [2022-12-14 13:33:49,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:49,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:33:49,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:33:49,288 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:33:49,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-14 13:33:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:49,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:33:49,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:49,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:49,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:33:49,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:33:49,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982034201] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:33:49,408 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 13:33:49,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 4, 4] total 14 [2022-12-14 13:33:49,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896275311] [2022-12-14 13:33:49,409 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 13:33:49,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 13:33:49,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:49,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 13:33:49,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-12-14 13:33:49,410 INFO L87 Difference]: Start difference. First operand 644 states and 827 transitions. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 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) [2022-12-14 13:33:50,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:50,814 INFO L93 Difference]: Finished difference Result 2747 states and 3758 transitions. [2022-12-14 13:33:50,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-14 13:33:50,814 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 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) Word has length 50 [2022-12-14 13:33:50,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:50,818 INFO L225 Difference]: With dead ends: 2747 [2022-12-14 13:33:50,818 INFO L226 Difference]: Without dead ends: 2162 [2022-12-14 13:33:50,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=456, Invalid=1104, Unknown=0, NotChecked=0, Total=1560 [2022-12-14 13:33:50,819 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 1547 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:50,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 815 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 1611 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 13:33:50,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2162 states. [2022-12-14 13:33:50,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2162 to 1567. [2022-12-14 13:33:50,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 1.326309067688378) internal successors, (2077), 1566 states have internal predecessors, (2077), 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) [2022-12-14 13:33:50,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2077 transitions. [2022-12-14 13:33:50,866 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2077 transitions. Word has length 50 [2022-12-14 13:33:50,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:50,866 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2077 transitions. [2022-12-14 13:33:50,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 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) [2022-12-14 13:33:50,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2077 transitions. [2022-12-14 13:33:50,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 13:33:50,868 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:50,868 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:50,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-12-14 13:33:51,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2022-12-14 13:33:51,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-12-14 13:33:51,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:33:51,470 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:51,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:51,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1561732311, now seen corresponding path program 1 times [2022-12-14 13:33:51,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:51,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1308473045] [2022-12-14 13:33:51,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:51,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:51,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:51,476 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:51,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-12-14 13:33:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:51,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 13:33:51,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:51,531 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 13:33:51,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:33:51,532 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:51,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1308473045] [2022-12-14 13:33:51,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1308473045] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:33:51,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:33:51,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:33:51,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936550671] [2022-12-14 13:33:51,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:33:51,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:33:51,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:51,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:33:51,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:33:51,533 INFO L87 Difference]: Start difference. First operand 1567 states and 2077 transitions. Second operand has 3 states, 2 states have (on average 33.5) internal successors, (67), 3 states have internal predecessors, (67), 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) [2022-12-14 13:33:51,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:33:51,581 INFO L93 Difference]: Finished difference Result 1626 states and 2150 transitions. [2022-12-14 13:33:51,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:33:51,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 33.5) internal successors, (67), 3 states have internal predecessors, (67), 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) Word has length 76 [2022-12-14 13:33:51,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:33:51,584 INFO L225 Difference]: With dead ends: 1626 [2022-12-14 13:33:51,584 INFO L226 Difference]: Without dead ends: 1498 [2022-12-14 13:33:51,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:33:51,585 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 8 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:33:51,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 201 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:33:51,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2022-12-14 13:33:51,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1375. [2022-12-14 13:33:51,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1375 states, 1374 states have (on average 1.3289665211062591) internal successors, (1826), 1374 states have internal predecessors, (1826), 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) [2022-12-14 13:33:51,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 1826 transitions. [2022-12-14 13:33:51,632 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 1826 transitions. Word has length 76 [2022-12-14 13:33:51,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:33:51,632 INFO L495 AbstractCegarLoop]: Abstraction has 1375 states and 1826 transitions. [2022-12-14 13:33:51,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 33.5) internal successors, (67), 3 states have internal predecessors, (67), 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) [2022-12-14 13:33:51,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 1826 transitions. [2022-12-14 13:33:51,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 13:33:51,634 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:33:51,634 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:33:51,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-12-14 13:33:51,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:51,836 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:33:51,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:33:51,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1035003935, now seen corresponding path program 1 times [2022-12-14 13:33:51,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:33:51,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055563427] [2022-12-14 13:33:51,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:51,839 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:33:51,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:33:51,842 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:33:51,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-12-14 13:33:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:51,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:33:51,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:52,000 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 40 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 13:33:52,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:33:52,096 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 40 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 13:33:52,096 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:33:52,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055563427] [2022-12-14 13:33:52,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055563427] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:33:52,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1026150455] [2022-12-14 13:33:52,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:52,096 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 13:33:52,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 13:33:52,098 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 13:33:52,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2022-12-14 13:33:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:52,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 13:33:52,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:52,283 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 40 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 13:33:52,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:33:52,351 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 40 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 13:33:52,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1026150455] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:33:52,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726953071] [2022-12-14 13:33:52,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:33:52,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:33:52,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:33:52,352 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:33:52,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-12-14 13:33:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:33:52,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 13:33:52,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:33:52,452 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 13:33:52,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:33:52,508 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 13:33:52,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726953071] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:33:52,508 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 13:33:52,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 4, 4] total 16 [2022-12-14 13:33:52,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157194001] [2022-12-14 13:33:52,509 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 13:33:52,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 13:33:52,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:33:52,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 13:33:52,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-12-14 13:33:52,510 INFO L87 Difference]: Start difference. First operand 1375 states and 1826 transitions. Second operand has 16 states, 16 states have (on average 13.25) internal successors, (212), 16 states have internal predecessors, (212), 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) [2022-12-14 13:34:01,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:34:01,417 INFO L93 Difference]: Finished difference Result 22794 states and 29902 transitions. [2022-12-14 13:34:01,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2022-12-14 13:34:01,417 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.25) internal successors, (212), 16 states have internal predecessors, (212), 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) Word has length 83 [2022-12-14 13:34:01,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:34:01,447 INFO L225 Difference]: With dead ends: 22794 [2022-12-14 13:34:01,448 INFO L226 Difference]: Without dead ends: 19599 [2022-12-14 13:34:01,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 801 GetRequests, 598 SyntacticMatches, 0 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16855 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=6633, Invalid=35187, Unknown=0, NotChecked=0, Total=41820 [2022-12-14 13:34:01,456 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1409 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 6195 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 6360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 6195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 13:34:01,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 1380 Invalid, 6360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 6195 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 13:34:01,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19599 states. [2022-12-14 13:34:01,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19599 to 4232. [2022-12-14 13:34:01,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4232 states, 4231 states have (on average 1.393996691089577) internal successors, (5898), 4231 states have internal predecessors, (5898), 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) [2022-12-14 13:34:01,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4232 states to 4232 states and 5898 transitions. [2022-12-14 13:34:01,700 INFO L78 Accepts]: Start accepts. Automaton has 4232 states and 5898 transitions. Word has length 83 [2022-12-14 13:34:01,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:34:01,701 INFO L495 AbstractCegarLoop]: Abstraction has 4232 states and 5898 transitions. [2022-12-14 13:34:01,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.25) internal successors, (212), 16 states have internal predecessors, (212), 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) [2022-12-14 13:34:01,701 INFO L276 IsEmpty]: Start isEmpty. Operand 4232 states and 5898 transitions. [2022-12-14 13:34:01,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 13:34:01,705 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:34:01,705 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:34:01,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-12-14 13:34:01,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-12-14 13:34:02,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2022-12-14 13:34:02,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 13:34:02,307 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:34:02,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:34:02,309 INFO L85 PathProgramCache]: Analyzing trace with hash 2029217443, now seen corresponding path program 1 times [2022-12-14 13:34:02,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:34:02,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059636843] [2022-12-14 13:34:02,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:34:02,310 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:34:02,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:34:02,313 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:34:02,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-12-14 13:34:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:34:02,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 13:34:02,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:34:02,409 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 13:34:02,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:34:02,456 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 13:34:02,456 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:34:02,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059636843] [2022-12-14 13:34:02,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059636843] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:34:02,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [400423733] [2022-12-14 13:34:02,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:34:02,456 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 13:34:02,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 13:34:02,457 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 13:34:02,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2022-12-14 13:34:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:34:02,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 13:34:02,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:34:02,533 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 13:34:02,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:34:02,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [400423733] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:34:02,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 13:34:02,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 6 [2022-12-14 13:34:02,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891027691] [2022-12-14 13:34:02,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:34:02,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:34:02,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:34:02,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:34:02,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 13:34:02,535 INFO L87 Difference]: Start difference. First operand 4232 states and 5898 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2022-12-14 13:34:02,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:34:02,715 INFO L93 Difference]: Finished difference Result 7590 states and 10589 transitions. [2022-12-14 13:34:02,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:34:02,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) Word has length 93 [2022-12-14 13:34:02,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:34:02,721 INFO L225 Difference]: With dead ends: 7590 [2022-12-14 13:34:02,721 INFO L226 Difference]: Without dead ends: 4480 [2022-12-14 13:34:02,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 269 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 13:34:02,724 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 41 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:34:02,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 95 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:34:02,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4480 states. [2022-12-14 13:34:02,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4480 to 4218. [2022-12-14 13:34:02,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4218 states, 4217 states have (on average 1.3640028456248519) internal successors, (5752), 4217 states have internal predecessors, (5752), 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) [2022-12-14 13:34:02,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4218 states to 4218 states and 5752 transitions. [2022-12-14 13:34:02,837 INFO L78 Accepts]: Start accepts. Automaton has 4218 states and 5752 transitions. Word has length 93 [2022-12-14 13:34:02,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:34:02,837 INFO L495 AbstractCegarLoop]: Abstraction has 4218 states and 5752 transitions. [2022-12-14 13:34:02,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2022-12-14 13:34:02,837 INFO L276 IsEmpty]: Start isEmpty. Operand 4218 states and 5752 transitions. [2022-12-14 13:34:02,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 13:34:02,841 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:34:02,841 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:34:02,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2022-12-14 13:34:03,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2022-12-14 13:34:03,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:34:03,243 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:34:03,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:34:03,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1564149979, now seen corresponding path program 1 times [2022-12-14 13:34:03,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:34:03,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217673539] [2022-12-14 13:34:03,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:34:03,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:34:03,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:34:03,249 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:34:03,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-12-14 13:34:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:34:03,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 13:34:03,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:34:03,454 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 13:34:03,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:34:03,502 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 13:34:03,502 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:34:03,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217673539] [2022-12-14 13:34:03,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217673539] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:34:03,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1918624515] [2022-12-14 13:34:03,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:34:03,502 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 13:34:03,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 13:34:03,503 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 13:34:03,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2022-12-14 13:34:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:34:03,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 13:34:03,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:34:03,625 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 48 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 13:34:03,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:34:03,669 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 48 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 13:34:03,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1918624515] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:34:03,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799529648] [2022-12-14 13:34:03,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:34:03,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:34:03,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:34:03,670 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:34:03,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-12-14 13:34:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:34:03,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 13:34:03,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:34:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 13:34:03,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:34:03,876 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 63 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 13:34:03,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799529648] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:34:03,876 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 13:34:03,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 8, 5, 7, 4] total 14 [2022-12-14 13:34:03,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273906940] [2022-12-14 13:34:03,876 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 13:34:03,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 13:34:03,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:34:03,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 13:34:03,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-12-14 13:34:03,877 INFO L87 Difference]: Start difference. First operand 4218 states and 5752 transitions. Second operand has 14 states, 14 states have (on average 14.428571428571429) internal successors, (202), 14 states have internal predecessors, (202), 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) [2022-12-14 13:34:05,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:34:05,031 INFO L93 Difference]: Finished difference Result 8393 states and 11382 transitions. [2022-12-14 13:34:05,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-12-14 13:34:05,032 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 14.428571428571429) internal successors, (202), 14 states have internal predecessors, (202), 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) Word has length 93 [2022-12-14 13:34:05,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:34:05,035 INFO L225 Difference]: With dead ends: 8393 [2022-12-14 13:34:05,035 INFO L226 Difference]: Without dead ends: 3113 [2022-12-14 13:34:05,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 634 GetRequests, 573 SyntacticMatches, 6 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1025 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=462, Invalid=2730, Unknown=0, NotChecked=0, Total=3192 [2022-12-14 13:34:05,038 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 976 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 2366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 13:34:05,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 1465 Invalid, 2366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 13:34:05,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3113 states. [2022-12-14 13:34:05,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3113 to 2606. [2022-12-14 13:34:05,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2606 states, 2605 states have (on average 1.2667946257197698) internal successors, (3300), 2605 states have internal predecessors, (3300), 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) [2022-12-14 13:34:05,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2606 states to 2606 states and 3300 transitions. [2022-12-14 13:34:05,115 INFO L78 Accepts]: Start accepts. Automaton has 2606 states and 3300 transitions. Word has length 93 [2022-12-14 13:34:05,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:34:05,115 INFO L495 AbstractCegarLoop]: Abstraction has 2606 states and 3300 transitions. [2022-12-14 13:34:05,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.428571428571429) internal successors, (202), 14 states have internal predecessors, (202), 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) [2022-12-14 13:34:05,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2606 states and 3300 transitions. [2022-12-14 13:34:05,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 13:34:05,118 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:34:05,118 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:34:05,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2022-12-14 13:34:05,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2022-12-14 13:34:05,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2022-12-14 13:34:05,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:34:05,721 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-12-14 13:34:05,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:34:05,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1867849845, now seen corresponding path program 1 times [2022-12-14 13:34:05,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:34:05,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213813083] [2022-12-14 13:34:05,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:34:05,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:34:05,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:34:05,725 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:34:05,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-12-14 13:34:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:34:05,789 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:34:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:34:05,875 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 13:34:05,875 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:34:05,876 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 41 remaining) [2022-12-14 13:34:05,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 41 remaining) [2022-12-14 13:34:05,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 41 remaining) [2022-12-14 13:34:05,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 41 remaining) [2022-12-14 13:34:05,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 41 remaining) [2022-12-14 13:34:05,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 41 remaining) [2022-12-14 13:34:05,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 41 remaining) [2022-12-14 13:34:05,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 41 remaining) [2022-12-14 13:34:05,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 41 remaining) [2022-12-14 13:34:05,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 41 remaining) [2022-12-14 13:34:05,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 41 remaining) [2022-12-14 13:34:05,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 41 remaining) [2022-12-14 13:34:05,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 41 remaining) [2022-12-14 13:34:05,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 41 remaining) [2022-12-14 13:34:05,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 41 remaining) [2022-12-14 13:34:05,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 41 remaining) [2022-12-14 13:34:05,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 41 remaining) [2022-12-14 13:34:05,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 41 remaining) [2022-12-14 13:34:05,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 41 remaining) [2022-12-14 13:34:05,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 41 remaining) [2022-12-14 13:34:05,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 41 remaining) [2022-12-14 13:34:05,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 41 remaining) [2022-12-14 13:34:05,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 41 remaining) [2022-12-14 13:34:05,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 41 remaining) [2022-12-14 13:34:05,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 41 remaining) [2022-12-14 13:34:05,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 41 remaining) [2022-12-14 13:34:05,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 41 remaining) [2022-12-14 13:34:05,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 41 remaining) [2022-12-14 13:34:05,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 41 remaining) [2022-12-14 13:34:05,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 41 remaining) [2022-12-14 13:34:05,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 41 remaining) [2022-12-14 13:34:05,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 41 remaining) [2022-12-14 13:34:05,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 41 remaining) [2022-12-14 13:34:05,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 41 remaining) [2022-12-14 13:34:05,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 41 remaining) [2022-12-14 13:34:05,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 41 remaining) [2022-12-14 13:34:05,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 41 remaining) [2022-12-14 13:34:05,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 41 remaining) [2022-12-14 13:34:05,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 41 remaining) [2022-12-14 13:34:05,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 41 remaining) [2022-12-14 13:34:05,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 41 remaining) [2022-12-14 13:34:05,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-12-14 13:34:06,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:34:06,088 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:34:06,092 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:34:06,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:34:06 BoogieIcfgContainer [2022-12-14 13:34:06,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:34:06,175 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:34:06,175 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:34:06,175 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:34:06,176 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:33:40" (3/4) ... [2022-12-14 13:34:06,178 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 13:34:06,251 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 13:34:06,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:34:06,252 INFO L158 Benchmark]: Toolchain (without parser) took 26442.42ms. Allocated memory was 81.8MB in the beginning and 251.7MB in the end (delta: 169.9MB). Free memory was 60.5MB in the beginning and 143.1MB in the end (delta: -82.6MB). Peak memory consumption was 89.1MB. Max. memory is 16.1GB. [2022-12-14 13:34:06,252 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 37.3MB in the beginning and 37.3MB in the end (delta: 81.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:34:06,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.87ms. Allocated memory is still 81.8MB. Free memory was 60.3MB in the beginning and 47.5MB in the end (delta: 12.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 13:34:06,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.15ms. Allocated memory is still 81.8MB. Free memory was 47.5MB in the beginning and 45.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:34:06,253 INFO L158 Benchmark]: Boogie Preprocessor took 31.16ms. Allocated memory is still 81.8MB. Free memory was 45.2MB in the beginning and 62.4MB in the end (delta: -17.2MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-12-14 13:34:06,254 INFO L158 Benchmark]: RCFGBuilder took 463.02ms. Allocated memory is still 81.8MB. Free memory was 62.4MB in the beginning and 41.9MB in the end (delta: 20.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 13:34:06,254 INFO L158 Benchmark]: TraceAbstraction took 25631.06ms. Allocated memory was 81.8MB in the beginning and 251.7MB in the end (delta: 169.9MB). Free memory was 41.1MB in the beginning and 151.5MB in the end (delta: -110.4MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2022-12-14 13:34:06,254 INFO L158 Benchmark]: Witness Printer took 76.59ms. Allocated memory is still 251.7MB. Free memory was 151.5MB in the beginning and 143.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 13:34:06,256 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 37.3MB in the beginning and 37.3MB in the end (delta: 81.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.87ms. Allocated memory is still 81.8MB. Free memory was 60.3MB in the beginning and 47.5MB in the end (delta: 12.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.15ms. Allocated memory is still 81.8MB. Free memory was 47.5MB in the beginning and 45.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.16ms. Allocated memory is still 81.8MB. Free memory was 45.2MB in the beginning and 62.4MB in the end (delta: -17.2MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * RCFGBuilder took 463.02ms. Allocated memory is still 81.8MB. Free memory was 62.4MB in the beginning and 41.9MB in the end (delta: 20.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 25631.06ms. Allocated memory was 81.8MB in the beginning and 251.7MB in the end (delta: 169.9MB). Free memory was 41.1MB in the beginning and 151.5MB in the end (delta: -110.4MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. * Witness Printer took 76.59ms. Allocated memory is still 251.7MB. Free memory was 151.5MB in the beginning and 143.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 116]: integer overflow possible integer overflow possible We found a FailurePath: [L124] unsigned int a, b, r; [L126] a = __VERIFIER_nondet_uint() [L127] b = __VERIFIER_nondet_uint() [L129] CALL mp_add(a, b) [L42] unsigned char a0, a1, a2, a3; [L43] unsigned char b0, b1, b2, b3; [L44] unsigned char r0, r1, r2, r3; [L45] unsigned short carry; [L46] unsigned short partial_sum; [L47] unsigned int r; [L48] unsigned char i; [L49] unsigned char na, nb; [L50] a0 = a [L51] a1 = a >> 8 [L52] a2 = a >> 16U [L53] a3 = a >> 24U [L54] b0 = b [L55] b1 = b >> 8U [L56] b2 = b >> 16U [L57] b3 = b >> 24U [L58] na = (unsigned char)4 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, na=4] [L59] COND TRUE a3 == (unsigned char)0 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, na=4] [L60] EXPR na - 1 [L60] na = na - 1 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, na=3] [L61] COND TRUE a2 == (unsigned char)0 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, na=3] [L62] EXPR na - 1 [L62] na = na - 1 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, na=2] [L63] COND TRUE a1 == (unsigned char)0 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, na=2] [L64] EXPR na - 1 [L64] na = na - 1 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, na=1] [L68] nb = (unsigned char)4 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, na=1, nb=4] [L69] COND FALSE !(b3 == (unsigned char)0) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, na=1, nb=4] [L78] carry = (unsigned short)0 [L79] i = (unsigned char)0 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=0, na=1, nb=4] [L80] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L81] partial_sum = carry [L82] carry = (unsigned short)0 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=0] [L83] COND TRUE i < na VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=0] [L84] COND TRUE i == (unsigned char)0 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=0] [L84] EXPR partial_sum + a0 [L84] partial_sum = partial_sum + a0 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=255] [L85] COND FALSE !(i == (unsigned char)1) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=255] [L86] COND FALSE !(i == (unsigned char)2) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=255] [L87] COND FALSE !(i == (unsigned char)3) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=255] [L89] COND TRUE i < nb VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=255] [L90] COND TRUE i == (unsigned char)0 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=255] [L90] EXPR partial_sum + b0 [L90] partial_sum = partial_sum + b0 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=255] [L91] COND FALSE !(i == (unsigned char)1) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=255] [L92] COND FALSE !(i == (unsigned char)2) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=255] [L93] COND FALSE !(i == (unsigned char)3) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=0, na=1, nb=4, partial_sum=255] [L95] COND TRUE partial_sum > ((unsigned char)254) [L96] partial_sum = partial_sum & ((unsigned char)255) [L97] carry = (unsigned short)1 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=0, na=1, nb=4, partial_sum=255] [L99] COND TRUE i == (unsigned char)0 [L99] r0 = (unsigned char)partial_sum VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=0, na=1, nb=4, partial_sum=255, r0=-1] [L100] COND FALSE !(i == (unsigned char)1) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=0, na=1, nb=4, partial_sum=255, r0=-1] [L101] COND FALSE !(i == (unsigned char)2) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=0, na=1, nb=4, partial_sum=255, r0=-1] [L102] COND FALSE !(i == (unsigned char)3) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=0, na=1, nb=4, partial_sum=255, r0=-1] [L104] EXPR i + (unsigned char)1 [L104] i = i + (unsigned char)1 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=1, na=1, nb=4, partial_sum=255, r0=-1] [L80] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L81] partial_sum = carry [L82] carry = (unsigned short)0 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=1, na=1, nb=4, partial_sum=1, r0=-1] [L83] COND FALSE !(i < na) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=1, na=1, nb=4, partial_sum=1, r0=-1] [L89] COND TRUE i < nb VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=1, na=1, nb=4, partial_sum=1, r0=-1] [L90] COND FALSE !(i == (unsigned char)0) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=1, na=1, nb=4, partial_sum=1, r0=-1] [L91] COND TRUE i == (unsigned char)1 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=1, na=1, nb=4, partial_sum=1, r0=-1] [L91] EXPR partial_sum + b1 [L91] partial_sum = partial_sum + b1 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=1, na=1, nb=4, partial_sum=255, r0=-1] [L92] COND FALSE !(i == (unsigned char)2) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=1, na=1, nb=4, partial_sum=255, r0=-1] [L93] COND FALSE !(i == (unsigned char)3) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=1, na=1, nb=4, partial_sum=255, r0=-1] [L95] COND TRUE partial_sum > ((unsigned char)254) [L96] partial_sum = partial_sum & ((unsigned char)255) [L97] carry = (unsigned short)1 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=1, na=1, nb=4, partial_sum=255, r0=-1] [L99] COND FALSE !(i == (unsigned char)0) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=1, na=1, nb=4, partial_sum=255, r0=-1] [L100] COND TRUE i == (unsigned char)1 [L100] r1 = (unsigned char)partial_sum VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=1, na=1, nb=4, partial_sum=255, r0=-1, r1=-1] [L101] COND FALSE !(i == (unsigned char)2) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=1, na=1, nb=4, partial_sum=255, r0=-1, r1=-1] [L102] COND FALSE !(i == (unsigned char)3) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=1, na=1, nb=4, partial_sum=255, r0=-1, r1=-1] [L104] EXPR i + (unsigned char)1 [L104] i = i + (unsigned char)1 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=2, na=1, nb=4, partial_sum=255, r0=-1, r1=-1] [L80] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L81] partial_sum = carry [L82] carry = (unsigned short)0 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=1, r0=-1, r1=-1] [L83] COND FALSE !(i < na) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=1, r0=-1, r1=-1] [L89] COND TRUE i < nb VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=1, r0=-1, r1=-1] [L90] COND FALSE !(i == (unsigned char)0) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=1, r0=-1, r1=-1] [L91] COND FALSE !(i == (unsigned char)1) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=1, r0=-1, r1=-1] [L92] COND TRUE i == (unsigned char)2 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=1, r0=-1, r1=-1] [L92] EXPR partial_sum + b2 [L92] partial_sum = partial_sum + b2 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=255, r0=-1, r1=-1] [L93] COND FALSE !(i == (unsigned char)3) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=2, na=1, nb=4, partial_sum=255, r0=-1, r1=-1] [L95] COND TRUE partial_sum > ((unsigned char)254) [L96] partial_sum = partial_sum & ((unsigned char)255) [L97] carry = (unsigned short)1 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=2, na=1, nb=4, partial_sum=255, r0=-1, r1=-1] [L99] COND FALSE !(i == (unsigned char)0) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=2, na=1, nb=4, partial_sum=255, r0=-1, r1=-1] [L100] COND FALSE !(i == (unsigned char)1) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=2, na=1, nb=4, partial_sum=255, r0=-1, r1=-1] [L101] COND TRUE i == (unsigned char)2 [L101] r2 = (unsigned char)partial_sum VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=2, na=1, nb=4, partial_sum=255, r0=-1, r1=-1, r2=-1] [L102] COND FALSE !(i == (unsigned char)3) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=2, na=1, nb=4, partial_sum=255, r0=-1, r1=-1, r2=-1] [L104] EXPR i + (unsigned char)1 [L104] i = i + (unsigned char)1 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=1, i=3, na=1, nb=4, partial_sum=255, r0=-1, r1=-1, r2=-1] [L80] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L81] partial_sum = carry [L82] carry = (unsigned short)0 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=1, r0=-1, r1=-1, r2=-1] [L83] COND FALSE !(i < na) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=1, r0=-1, r1=-1, r2=-1] [L89] COND TRUE i < nb VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=1, r0=-1, r1=-1, r2=-1] [L90] COND FALSE !(i == (unsigned char)0) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=1, r0=-1, r1=-1, r2=-1] [L91] COND FALSE !(i == (unsigned char)1) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=1, r0=-1, r1=-1, r2=-1] [L92] COND FALSE !(i == (unsigned char)2) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=1, r0=-1, r1=-1, r2=-1] [L93] COND TRUE i == (unsigned char)3 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=1, r0=-1, r1=-1, r2=-1] [L93] EXPR partial_sum + b3 [L93] partial_sum = partial_sum + b3 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=129, r0=-1, r1=-1, r2=-1] [L95] COND FALSE !(partial_sum > ((unsigned char)254)) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=129, r0=-1, r1=-1, r2=-1] [L99] COND FALSE !(i == (unsigned char)0) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=129, r0=-1, r1=-1, r2=-1] [L100] COND FALSE !(i == (unsigned char)1) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=129, r0=-1, r1=-1, r2=-1] [L101] COND FALSE !(i == (unsigned char)2) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=129, r0=-1, r1=-1, r2=-1] [L102] COND TRUE i == (unsigned char)3 [L102] r3 = (unsigned char)partial_sum VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=3, na=1, nb=4, partial_sum=129, r0=-1, r1=-1, r2=-1, r3=-127] [L104] EXPR i + (unsigned char)1 [L104] i = i + (unsigned char)1 VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=4, na=1, nb=4, partial_sum=129, r0=-1, r1=-1, r2=-1, r3=-127] [L80] COND FALSE !((i < na) || (i < nb) || (carry != (unsigned short)0)) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=4, na=1, nb=4, partial_sum=129, r0=-1, r1=-1, r2=-1, r3=-127] [L107] COND FALSE !(i < (unsigned char)4) VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=4, na=1, nb=4, partial_sum=129, r0=-1, r1=-1, r2=-1, r3=-127] [L116] r1 << 8U VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=4, na=1, nb=4, partial_sum=129, r0=-1, r1=-1, r2=-1, r3=-127] [L116] r2 << 16U VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=4, na=1, nb=4, partial_sum=129, r0=-1, r1=-1, r2=-1, r3=-127] [L116] r3 << 24U VAL [\old(a)=255, \old(b)=2164194816, a=255, a0=-1, a1=0, a2=0, a3=0, b=2164194816, b0=0, b1=-2, b2=-2, b3=-128, carry=0, i=4, na=1, nb=4, partial_sum=129, r0=-1, r1=-1, r2=-1, r3=-127] - UnprovableResult [Line: 60]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 84]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 84]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 93]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 93]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 120 locations, 41 error locations. Started 1 CEGAR loops. OverallTime: 25.5s, OverallIterations: 20, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6555 SdHoareTripleChecker+Valid, 7.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6555 mSDsluCounter, 12087 SdHoareTripleChecker+Invalid, 6.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8856 mSDsCounter, 719 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13323 IncrementalHoareTripleChecker+Invalid, 14042 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 719 mSolverCounterUnsat, 3231 mSDtfsCounter, 13323 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2664 GetRequests, 2297 SyntacticMatches, 9 SemanticMatches, 358 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18311 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4232occurred in iteration=17, InterpolantAutomatonStates: 372, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 19 MinimizatonAttempts, 19127 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1554 NumberOfCodeBlocks, 1554 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2242 ConstructedInterpolants, 4 QuantifiedInterpolants, 6925 SizeOfPredicates, 44 NumberOfNonLiveVariables, 2527 ConjunctsInSsa, 120 ConjunctsInUnsatCore, 38 InterpolantComputations, 16 PerfectInterpolantSequences, 947/1242 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 13:34:06,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5179305-21ee-471b-9a78-0ef9d197d43e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)