./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS --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 6ff1cedc7411bab7c4dff496b498f1be2a7af9e572a1448d390780005c75fec3 --- 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-8393723 [2022-11-19 07:01:34,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:01:34,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:01:34,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:01:34,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:01:34,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:01:34,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:01:34,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:01:34,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:01:34,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:01:34,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:01:34,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:01:34,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:01:34,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:01:34,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:01:34,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:01:34,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:01:34,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:01:34,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:01:34,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:01:34,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:01:34,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:01:34,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:01:34,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:01:34,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:01:34,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:01:34,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:01:34,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:01:34,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:01:34,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:01:34,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:01:34,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:01:34,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:01:34,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:01:34,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:01:34,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:01:34,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:01:34,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:01:34,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:01:34,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:01:34,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:01:34,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 07:01:34,318 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:01:34,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:01:34,319 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:01:34,319 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:01:34,320 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:01:34,320 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:01:34,320 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:01:34,320 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:01:34,321 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:01:34,321 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:01:34,321 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:01:34,321 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:01:34,322 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:01:34,322 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:01:34,322 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:01:34,323 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:01:34,323 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:01:34,323 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:01:34,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:01:34,324 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:01:34,324 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:01:34,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:01:34,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:01:34,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:01:34,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:01:34,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:01:34,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:01:34,326 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:01:34,326 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:01:34,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:01:34,327 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:01:34,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:01:34,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:01:34,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:01:34,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:01:34,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:01:34,328 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:01:34,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:01:34,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:01:34,329 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:01:34,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:01:34,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:01:34,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:01:34,330 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_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ff1cedc7411bab7c4dff496b498f1be2a7af9e572a1448d390780005c75fec3 [2022-11-19 07:01:34,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:01:34,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:01:34,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:01:34,660 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:01:34,661 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:01:34,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2022-11-19 07:01:34,725 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/data/b62a7ce34/dfefa836bc484d5b8ec9927a1ba71847/FLAGaf964dd79 [2022-11-19 07:01:35,242 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:01:35,242 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2022-11-19 07:01:35,252 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/data/b62a7ce34/dfefa836bc484d5b8ec9927a1ba71847/FLAGaf964dd79 [2022-11-19 07:01:35,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/data/b62a7ce34/dfefa836bc484d5b8ec9927a1ba71847 [2022-11-19 07:01:35,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:01:35,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:01:35,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:01:35,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:01:35,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:01:35,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:01:35" (1/1) ... [2022-11-19 07:01:35,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@766e95f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:01:35, skipping insertion in model container [2022-11-19 07:01:35,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:01:35" (1/1) ... [2022-11-19 07:01:35,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:01:35,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:01:36,058 WARN L234 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_118c3e28-a58e-4919-b246-5d7511a703da/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c[12106,12119] [2022-11-19 07:01:36,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:01:36,069 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:01:36,130 WARN L234 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_118c3e28-a58e-4919-b246-5d7511a703da/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c[12106,12119] [2022-11-19 07:01:36,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:01:36,145 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:01:36,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:01:36 WrapperNode [2022-11-19 07:01:36,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:01:36,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:01:36,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:01:36,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:01:36,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:01:36" (1/1) ... [2022-11-19 07:01:36,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:01:36" (1/1) ... [2022-11-19 07:01:36,203 INFO L138 Inliner]: procedures = 28, calls = 51, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 389 [2022-11-19 07:01:36,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:01:36,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:01:36,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:01:36,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:01:36,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:01:36" (1/1) ... [2022-11-19 07:01:36,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:01:36" (1/1) ... [2022-11-19 07:01:36,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:01:36" (1/1) ... [2022-11-19 07:01:36,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:01:36" (1/1) ... [2022-11-19 07:01:36,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:01:36" (1/1) ... [2022-11-19 07:01:36,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:01:36" (1/1) ... [2022-11-19 07:01:36,235 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:01:36" (1/1) ... [2022-11-19 07:01:36,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:01:36" (1/1) ... [2022-11-19 07:01:36,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:01:36,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:01:36,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:01:36,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:01:36,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:01:36" (1/1) ... [2022-11-19 07:01:36,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:01:36,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:36,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:01:36,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:01:36,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:01:36,337 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2022-11-19 07:01:36,337 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2022-11-19 07:01:36,338 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-19 07:01:36,338 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-19 07:01:36,338 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2022-11-19 07:01:36,338 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2022-11-19 07:01:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2022-11-19 07:01:36,339 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2022-11-19 07:01:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2022-11-19 07:01:36,339 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2022-11-19 07:01:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:01:36,340 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:01:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:01:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:01:36,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:01:36,454 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:01:36,456 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:01:37,078 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:01:37,294 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:01:37,295 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:01:37,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:01:37 BoogieIcfgContainer [2022-11-19 07:01:37,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:01:37,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:01:37,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:01:37,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:01:37,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:01:35" (1/3) ... [2022-11-19 07:01:37,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ce9569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:01:37, skipping insertion in model container [2022-11-19 07:01:37,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:01:36" (2/3) ... [2022-11-19 07:01:37,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ce9569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:01:37, skipping insertion in model container [2022-11-19 07:01:37,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:01:37" (3/3) ... [2022-11-19 07:01:37,310 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2022-11-19 07:01:37,332 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:01:37,332 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-19 07:01:37,396 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:01:37,404 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;@2598adc5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:01:37,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-19 07:01:37,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 107 states have (on average 1.5420560747663552) internal successors, (165), 119 states have internal predecessors, (165), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-11-19 07:01:37,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:01:37,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:37,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:37,428 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:37,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:37,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1201561402, now seen corresponding path program 1 times [2022-11-19 07:01:37,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:37,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281956456] [2022-11-19 07:01:37,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:37,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:37,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:01:37,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:37,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281956456] [2022-11-19 07:01:37,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281956456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:37,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:01:37,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:01:37,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099810414] [2022-11-19 07:01:37,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:37,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:01:37,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:37,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:01:37,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:01:37,742 INFO L87 Difference]: Start difference. First operand has 159 states, 107 states have (on average 1.5420560747663552) internal successors, (165), 119 states have internal predecessors, (165), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:01:37,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:37,915 INFO L93 Difference]: Finished difference Result 337 states and 508 transitions. [2022-11-19 07:01:37,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:01:37,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 07:01:37,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:37,929 INFO L225 Difference]: With dead ends: 337 [2022-11-19 07:01:37,930 INFO L226 Difference]: Without dead ends: 180 [2022-11-19 07:01:37,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:01:37,938 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 34 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:37,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 657 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:01:37,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-19 07:01:37,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 174. [2022-11-19 07:01:37,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 121 states have (on average 1.5289256198347108) internal successors, (185), 132 states have internal predecessors, (185), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-11-19 07:01:37,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 261 transitions. [2022-11-19 07:01:38,001 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 261 transitions. Word has length 10 [2022-11-19 07:01:38,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:38,002 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 261 transitions. [2022-11-19 07:01:38,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:01:38,002 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 261 transitions. [2022-11-19 07:01:38,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 07:01:38,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:38,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:38,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:01:38,005 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:38,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:38,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1945929817, now seen corresponding path program 1 times [2022-11-19 07:01:38,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:38,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334080705] [2022-11-19 07:01:38,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:38,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:01:38,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:38,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334080705] [2022-11-19 07:01:38,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334080705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:38,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:01:38,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:01:38,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402475212] [2022-11-19 07:01:38,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:38,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:01:38,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:38,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:01:38,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:01:38,129 INFO L87 Difference]: Start difference. First operand 174 states and 261 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:01:38,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:38,290 INFO L93 Difference]: Finished difference Result 372 states and 568 transitions. [2022-11-19 07:01:38,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:01:38,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-19 07:01:38,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:38,297 INFO L225 Difference]: With dead ends: 372 [2022-11-19 07:01:38,297 INFO L226 Difference]: Without dead ends: 209 [2022-11-19 07:01:38,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:01:38,300 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 21 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:38,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 669 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:01:38,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-11-19 07:01:38,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 205. [2022-11-19 07:01:38,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 147 states have (on average 1.4965986394557824) internal successors, (220), 158 states have internal predecessors, (220), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-11-19 07:01:38,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 306 transitions. [2022-11-19 07:01:38,351 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 306 transitions. Word has length 14 [2022-11-19 07:01:38,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:38,353 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 306 transitions. [2022-11-19 07:01:38,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:01:38,353 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 306 transitions. [2022-11-19 07:01:38,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-19 07:01:38,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:38,356 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:38,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:01:38,357 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:38,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:38,359 INFO L85 PathProgramCache]: Analyzing trace with hash 830394014, now seen corresponding path program 1 times [2022-11-19 07:01:38,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:38,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618498074] [2022-11-19 07:01:38,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:38,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:38,472 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 07:01:38,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:38,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618498074] [2022-11-19 07:01:38,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618498074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:38,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:01:38,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:01:38,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701367595] [2022-11-19 07:01:38,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:38,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:01:38,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:38,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:01:38,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:01:38,475 INFO L87 Difference]: Start difference. First operand 205 states and 306 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:01:38,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:38,578 INFO L93 Difference]: Finished difference Result 209 states and 312 transitions. [2022-11-19 07:01:38,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:01:38,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2022-11-19 07:01:38,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:38,585 INFO L225 Difference]: With dead ends: 209 [2022-11-19 07:01:38,585 INFO L226 Difference]: Without dead ends: 208 [2022-11-19 07:01:38,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:01:38,596 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 23 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:38,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 626 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:01:38,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-19 07:01:38,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 204. [2022-11-19 07:01:38,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 147 states have (on average 1.4761904761904763) internal successors, (217), 157 states have internal predecessors, (217), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-11-19 07:01:38,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 303 transitions. [2022-11-19 07:01:38,633 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 303 transitions. Word has length 26 [2022-11-19 07:01:38,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:38,634 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 303 transitions. [2022-11-19 07:01:38,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:01:38,635 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 303 transitions. [2022-11-19 07:01:38,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 07:01:38,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:38,636 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-19 07:01:38,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:01:38,637 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:38,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:38,638 INFO L85 PathProgramCache]: Analyzing trace with hash -27588816, now seen corresponding path program 1 times [2022-11-19 07:01:38,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:38,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026686777] [2022-11-19 07:01:38,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:38,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:38,874 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:01:38,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:38,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026686777] [2022-11-19 07:01:38,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026686777] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:38,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507540128] [2022-11-19 07:01:38,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:38,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:38,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:38,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:38,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:01:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:39,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:01:39,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:39,128 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 07:01:39,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:39,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507540128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:39,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:39,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-19 07:01:39,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096162898] [2022-11-19 07:01:39,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:39,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:01:39,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:39,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:01:39,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:01:39,139 INFO L87 Difference]: Start difference. First operand 204 states and 303 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:01:39,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:39,282 INFO L93 Difference]: Finished difference Result 208 states and 309 transitions. [2022-11-19 07:01:39,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:01:39,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-11-19 07:01:39,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:39,287 INFO L225 Difference]: With dead ends: 208 [2022-11-19 07:01:39,287 INFO L226 Difference]: Without dead ends: 207 [2022-11-19 07:01:39,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:01:39,297 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 48 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:39,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 944 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:01:39,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-11-19 07:01:39,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 174. [2022-11-19 07:01:39,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 123 states have (on average 1.4715447154471544) internal successors, (181), 132 states have internal predecessors, (181), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-11-19 07:01:39,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 257 transitions. [2022-11-19 07:01:39,326 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 257 transitions. Word has length 27 [2022-11-19 07:01:39,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:39,327 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 257 transitions. [2022-11-19 07:01:39,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:01:39,327 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 257 transitions. [2022-11-19 07:01:39,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 07:01:39,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:39,339 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2022-11-19 07:01:39,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:01:39,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:39,545 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:39,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:39,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1534355868, now seen corresponding path program 1 times [2022-11-19 07:01:39,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:39,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318884315] [2022-11-19 07:01:39,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:39,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:39,696 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 07:01:39,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:39,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318884315] [2022-11-19 07:01:39,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318884315] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:39,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679742187] [2022-11-19 07:01:39,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:39,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:39,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:39,699 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:39,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:01:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:39,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:01:39,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:39,905 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-19 07:01:39,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:39,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679742187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:39,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:39,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-11-19 07:01:39,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812343905] [2022-11-19 07:01:39,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:39,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:01:39,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:39,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:01:39,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:01:39,908 INFO L87 Difference]: Start difference. First operand 174 states and 257 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:01:39,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:39,997 INFO L93 Difference]: Finished difference Result 299 states and 447 transitions. [2022-11-19 07:01:39,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:01:39,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 79 [2022-11-19 07:01:39,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:39,999 INFO L225 Difference]: With dead ends: 299 [2022-11-19 07:01:39,999 INFO L226 Difference]: Without dead ends: 181 [2022-11-19 07:01:40,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:01:40,001 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 20 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:40,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 622 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:01:40,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-11-19 07:01:40,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2022-11-19 07:01:40,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 128 states have (on average 1.4765625) internal successors, (189), 138 states have internal predecessors, (189), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-11-19 07:01:40,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 267 transitions. [2022-11-19 07:01:40,011 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 267 transitions. Word has length 79 [2022-11-19 07:01:40,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:40,012 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 267 transitions. [2022-11-19 07:01:40,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:01:40,012 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 267 transitions. [2022-11-19 07:01:40,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-19 07:01:40,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:40,014 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-19 07:01:40,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:40,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:40,225 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:40,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:40,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1210257364, now seen corresponding path program 1 times [2022-11-19 07:01:40,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:40,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009015840] [2022-11-19 07:01:40,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:40,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:40,447 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-19 07:01:40,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:40,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009015840] [2022-11-19 07:01:40,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009015840] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:40,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089398392] [2022-11-19 07:01:40,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:40,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:40,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:40,449 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:40,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:01:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:40,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:01:40,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:40,630 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-19 07:01:40,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:40,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089398392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:40,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:40,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-11-19 07:01:40,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467237049] [2022-11-19 07:01:40,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:40,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:01:40,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:40,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:01:40,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:01:40,632 INFO L87 Difference]: Start difference. First operand 181 states and 267 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:01:40,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:40,717 INFO L93 Difference]: Finished difference Result 313 states and 466 transitions. [2022-11-19 07:01:40,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:01:40,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 81 [2022-11-19 07:01:40,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:40,719 INFO L225 Difference]: With dead ends: 313 [2022-11-19 07:01:40,719 INFO L226 Difference]: Without dead ends: 188 [2022-11-19 07:01:40,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:01:40,721 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 18 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:40,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 622 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:01:40,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-19 07:01:40,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2022-11-19 07:01:40,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 133 states have (on average 1.481203007518797) internal successors, (197), 144 states have internal predecessors, (197), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-11-19 07:01:40,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 277 transitions. [2022-11-19 07:01:40,731 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 277 transitions. Word has length 81 [2022-11-19 07:01:40,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:40,732 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 277 transitions. [2022-11-19 07:01:40,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:01:40,732 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 277 transitions. [2022-11-19 07:01:40,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-19 07:01:40,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:40,734 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:40,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:40,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 07:01:40,941 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:40,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:40,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1640185829, now seen corresponding path program 1 times [2022-11-19 07:01:40,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:40,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587639622] [2022-11-19 07:01:40,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:40,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:41,047 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-19 07:01:41,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:41,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587639622] [2022-11-19 07:01:41,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587639622] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:41,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893881996] [2022-11-19 07:01:41,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:41,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:41,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:41,049 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:41,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:01:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:41,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:01:41,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:41,274 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-19 07:01:41,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:41,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893881996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:41,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:41,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-11-19 07:01:41,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721242594] [2022-11-19 07:01:41,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:41,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:01:41,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:41,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:01:41,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:01:41,286 INFO L87 Difference]: Start difference. First operand 188 states and 277 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:01:41,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:41,411 INFO L93 Difference]: Finished difference Result 367 states and 552 transitions. [2022-11-19 07:01:41,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:01:41,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 82 [2022-11-19 07:01:41,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:41,415 INFO L225 Difference]: With dead ends: 367 [2022-11-19 07:01:41,415 INFO L226 Difference]: Without dead ends: 196 [2022-11-19 07:01:41,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:01:41,417 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 23 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:41,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 600 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:01:41,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-19 07:01:41,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2022-11-19 07:01:41,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 139 states have (on average 1.4820143884892085) internal successors, (206), 150 states have internal predecessors, (206), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-11-19 07:01:41,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 288 transitions. [2022-11-19 07:01:41,448 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 288 transitions. Word has length 82 [2022-11-19 07:01:41,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:41,450 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 288 transitions. [2022-11-19 07:01:41,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:01:41,450 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 288 transitions. [2022-11-19 07:01:41,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-19 07:01:41,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:41,454 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:41,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:41,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-19 07:01:41,660 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:41,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:41,661 INFO L85 PathProgramCache]: Analyzing trace with hash 2007863783, now seen corresponding path program 1 times [2022-11-19 07:01:41,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:41,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267891737] [2022-11-19 07:01:41,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:41,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:41,763 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-19 07:01:41,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:41,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267891737] [2022-11-19 07:01:41,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267891737] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:41,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917061818] [2022-11-19 07:01:41,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:41,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:41,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:41,766 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:41,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:01:41,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:41,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:01:41,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:41,999 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-19 07:01:41,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:42,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917061818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:42,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:42,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-11-19 07:01:42,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469215621] [2022-11-19 07:01:42,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:42,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:01:42,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:42,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:01:42,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:01:42,003 INFO L87 Difference]: Start difference. First operand 196 states and 288 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:01:42,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:42,116 INFO L93 Difference]: Finished difference Result 383 states and 571 transitions. [2022-11-19 07:01:42,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:01:42,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 84 [2022-11-19 07:01:42,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:42,119 INFO L225 Difference]: With dead ends: 383 [2022-11-19 07:01:42,120 INFO L226 Difference]: Without dead ends: 204 [2022-11-19 07:01:42,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:01:42,121 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 21 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:42,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 600 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:01:42,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-19 07:01:42,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-11-19 07:01:42,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 145 states have (on average 1.4827586206896552) internal successors, (215), 156 states have internal predecessors, (215), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-11-19 07:01:42,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 299 transitions. [2022-11-19 07:01:42,133 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 299 transitions. Word has length 84 [2022-11-19 07:01:42,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:42,134 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 299 transitions. [2022-11-19 07:01:42,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:01:42,134 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 299 transitions. [2022-11-19 07:01:42,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-19 07:01:42,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:42,136 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:42,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-19 07:01:42,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:42,343 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:42,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:42,343 INFO L85 PathProgramCache]: Analyzing trace with hash 579657836, now seen corresponding path program 1 times [2022-11-19 07:01:42,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:42,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105463743] [2022-11-19 07:01:42,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:42,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:42,473 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-19 07:01:42,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:42,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105463743] [2022-11-19 07:01:42,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105463743] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:42,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168747132] [2022-11-19 07:01:42,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:42,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:42,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:42,475 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:42,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 07:01:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:42,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:01:42,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:42,675 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-19 07:01:42,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:42,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168747132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:42,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:42,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-19 07:01:42,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574461896] [2022-11-19 07:01:42,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:42,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:01:42,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:42,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:01:42,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:01:42,680 INFO L87 Difference]: Start difference. First operand 204 states and 299 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:01:42,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:42,777 INFO L93 Difference]: Finished difference Result 399 states and 595 transitions. [2022-11-19 07:01:42,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:01:42,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 85 [2022-11-19 07:01:42,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:42,781 INFO L225 Difference]: With dead ends: 399 [2022-11-19 07:01:42,782 INFO L226 Difference]: Without dead ends: 251 [2022-11-19 07:01:42,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:01:42,787 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 55 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:42,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 750 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:01:42,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-11-19 07:01:42,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 214. [2022-11-19 07:01:42,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 154 states have (on average 1.4805194805194806) internal successors, (228), 164 states have internal predecessors, (228), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-11-19 07:01:42,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 316 transitions. [2022-11-19 07:01:42,809 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 316 transitions. Word has length 85 [2022-11-19 07:01:42,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:42,810 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 316 transitions. [2022-11-19 07:01:42,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:01:42,811 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 316 transitions. [2022-11-19 07:01:42,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-19 07:01:42,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:42,814 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:42,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:43,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:43,021 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:43,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:43,022 INFO L85 PathProgramCache]: Analyzing trace with hash 789524052, now seen corresponding path program 1 times [2022-11-19 07:01:43,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:43,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753555874] [2022-11-19 07:01:43,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:43,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:43,145 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-19 07:01:43,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:43,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753555874] [2022-11-19 07:01:43,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753555874] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:43,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227429423] [2022-11-19 07:01:43,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:43,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:43,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:43,148 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:43,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 07:01:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:43,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:01:43,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-19 07:01:43,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:43,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227429423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:43,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:43,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-19 07:01:43,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722743434] [2022-11-19 07:01:43,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:43,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:01:43,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:43,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:01:43,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:01:43,331 INFO L87 Difference]: Start difference. First operand 214 states and 316 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:01:43,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:43,418 INFO L93 Difference]: Finished difference Result 283 states and 429 transitions. [2022-11-19 07:01:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:01:43,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 86 [2022-11-19 07:01:43,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:43,420 INFO L225 Difference]: With dead ends: 283 [2022-11-19 07:01:43,420 INFO L226 Difference]: Without dead ends: 282 [2022-11-19 07:01:43,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:01:43,422 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 82 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:43,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 809 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:01:43,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-11-19 07:01:43,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 213. [2022-11-19 07:01:43,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 154 states have (on average 1.474025974025974) internal successors, (227), 163 states have internal predecessors, (227), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-11-19 07:01:43,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 315 transitions. [2022-11-19 07:01:43,435 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 315 transitions. Word has length 86 [2022-11-19 07:01:43,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:43,436 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 315 transitions. [2022-11-19 07:01:43,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:01:43,436 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 315 transitions. [2022-11-19 07:01:43,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-19 07:01:43,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:43,438 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:43,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:43,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-19 07:01:43,651 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:43,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:43,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1174640656, now seen corresponding path program 1 times [2022-11-19 07:01:43,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:43,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84590681] [2022-11-19 07:01:43,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:43,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:43,761 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-19 07:01:43,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:43,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84590681] [2022-11-19 07:01:43,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84590681] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:43,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357003266] [2022-11-19 07:01:43,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:43,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:43,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:43,767 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:43,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-19 07:01:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:43,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:01:43,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:43,961 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-19 07:01:43,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:43,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357003266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:43,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:43,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-19 07:01:43,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980409735] [2022-11-19 07:01:43,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:43,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:01:43,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:43,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:01:43,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:01:43,966 INFO L87 Difference]: Start difference. First operand 213 states and 315 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 07:01:44,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:44,059 INFO L93 Difference]: Finished difference Result 250 states and 371 transitions. [2022-11-19 07:01:44,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:01:44,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 92 [2022-11-19 07:01:44,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:44,062 INFO L225 Difference]: With dead ends: 250 [2022-11-19 07:01:44,062 INFO L226 Difference]: Without dead ends: 249 [2022-11-19 07:01:44,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:01:44,063 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 51 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:44,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 717 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:01:44,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-11-19 07:01:44,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 214. [2022-11-19 07:01:44,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 155 states have (on average 1.4709677419354839) internal successors, (228), 164 states have internal predecessors, (228), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-11-19 07:01:44,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 316 transitions. [2022-11-19 07:01:44,080 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 316 transitions. Word has length 92 [2022-11-19 07:01:44,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:44,081 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 316 transitions. [2022-11-19 07:01:44,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 07:01:44,082 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 316 transitions. [2022-11-19 07:01:44,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-19 07:01:44,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:44,084 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:44,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:44,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:44,291 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:44,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:44,291 INFO L85 PathProgramCache]: Analyzing trace with hash 2054122300, now seen corresponding path program 1 times [2022-11-19 07:01:44,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:44,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718015836] [2022-11-19 07:01:44,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:44,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:44,381 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-19 07:01:44,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:44,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718015836] [2022-11-19 07:01:44,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718015836] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:44,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153836720] [2022-11-19 07:01:44,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:44,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:44,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:44,384 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:44,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-19 07:01:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:44,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:01:44,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-19 07:01:44,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:44,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153836720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:44,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:44,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-19 07:01:44,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62485228] [2022-11-19 07:01:44,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:44,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:01:44,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:44,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:01:44,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:01:44,574 INFO L87 Difference]: Start difference. First operand 214 states and 316 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 07:01:44,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:44,669 INFO L93 Difference]: Finished difference Result 285 states and 431 transitions. [2022-11-19 07:01:44,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:01:44,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2022-11-19 07:01:44,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:44,671 INFO L225 Difference]: With dead ends: 285 [2022-11-19 07:01:44,671 INFO L226 Difference]: Without dead ends: 284 [2022-11-19 07:01:44,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:01:44,672 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 78 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:44,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 815 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:01:44,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-11-19 07:01:44,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 215. [2022-11-19 07:01:44,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 156 states have (on average 1.4679487179487178) internal successors, (229), 165 states have internal predecessors, (229), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-11-19 07:01:44,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 317 transitions. [2022-11-19 07:01:44,683 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 317 transitions. Word has length 93 [2022-11-19 07:01:44,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:44,684 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 317 transitions. [2022-11-19 07:01:44,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 07:01:44,684 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 317 transitions. [2022-11-19 07:01:44,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-19 07:01:44,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:44,686 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:44,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:44,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-19 07:01:44,892 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:44,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:44,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1985890124, now seen corresponding path program 1 times [2022-11-19 07:01:44,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:44,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406221206] [2022-11-19 07:01:44,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:44,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:45,001 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-19 07:01:45,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:45,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406221206] [2022-11-19 07:01:45,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406221206] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:45,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293468651] [2022-11-19 07:01:45,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:45,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:45,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:45,003 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:45,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-19 07:01:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:45,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:01:45,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:45,213 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-19 07:01:45,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:45,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293468651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:45,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:45,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-19 07:01:45,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490408797] [2022-11-19 07:01:45,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:45,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:01:45,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:45,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:01:45,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:01:45,216 INFO L87 Difference]: Start difference. First operand 215 states and 317 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-19 07:01:45,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:45,452 INFO L93 Difference]: Finished difference Result 475 states and 720 transitions. [2022-11-19 07:01:45,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:01:45,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 94 [2022-11-19 07:01:45,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:45,455 INFO L225 Difference]: With dead ends: 475 [2022-11-19 07:01:45,455 INFO L226 Difference]: Without dead ends: 316 [2022-11-19 07:01:45,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:01:45,456 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 125 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:45,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1618 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:01:45,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-11-19 07:01:45,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 220. [2022-11-19 07:01:45,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 161 states have (on average 1.4720496894409938) internal successors, (237), 169 states have internal predecessors, (237), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-19 07:01:45,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 327 transitions. [2022-11-19 07:01:45,469 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 327 transitions. Word has length 94 [2022-11-19 07:01:45,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:45,469 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 327 transitions. [2022-11-19 07:01:45,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-19 07:01:45,470 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 327 transitions. [2022-11-19 07:01:45,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-19 07:01:45,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:45,471 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:45,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:45,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-19 07:01:45,677 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:45,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:45,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1433052032, now seen corresponding path program 1 times [2022-11-19 07:01:45,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:45,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152504312] [2022-11-19 07:01:45,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:45,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:45,788 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-19 07:01:45,788 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:45,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152504312] [2022-11-19 07:01:45,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152504312] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:45,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958871412] [2022-11-19 07:01:45,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:45,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:45,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:45,790 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:45,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-19 07:01:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:45,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:01:45,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:46,014 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-19 07:01:46,015 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:46,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958871412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:46,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:46,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-19 07:01:46,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775379082] [2022-11-19 07:01:46,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:46,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:01:46,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:46,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:01:46,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:01:46,017 INFO L87 Difference]: Start difference. First operand 220 states and 327 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-19 07:01:46,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:46,212 INFO L93 Difference]: Finished difference Result 323 states and 493 transitions. [2022-11-19 07:01:46,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:01:46,213 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 95 [2022-11-19 07:01:46,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:46,216 INFO L225 Difference]: With dead ends: 323 [2022-11-19 07:01:46,216 INFO L226 Difference]: Without dead ends: 322 [2022-11-19 07:01:46,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-19 07:01:46,217 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 124 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:46,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1515 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:01:46,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-11-19 07:01:46,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 217. [2022-11-19 07:01:46,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 159 states have (on average 1.471698113207547) internal successors, (234), 166 states have internal predecessors, (234), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-19 07:01:46,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 324 transitions. [2022-11-19 07:01:46,230 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 324 transitions. Word has length 95 [2022-11-19 07:01:46,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:46,231 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 324 transitions. [2022-11-19 07:01:46,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-19 07:01:46,231 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 324 transitions. [2022-11-19 07:01:46,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-19 07:01:46,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:46,233 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:46,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:46,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-19 07:01:46,447 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:46,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:46,447 INFO L85 PathProgramCache]: Analyzing trace with hash -430500224, now seen corresponding path program 1 times [2022-11-19 07:01:46,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:46,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953221248] [2022-11-19 07:01:46,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:46,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:46,570 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-19 07:01:46,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:46,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953221248] [2022-11-19 07:01:46,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953221248] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:46,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362329169] [2022-11-19 07:01:46,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:46,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:46,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:46,573 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:46,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-19 07:01:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:46,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:01:46,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:46,755 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-19 07:01:46,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:46,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362329169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:46,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:46,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-19 07:01:46,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902419751] [2022-11-19 07:01:46,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:46,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:01:46,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:46,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:01:46,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:01:46,758 INFO L87 Difference]: Start difference. First operand 217 states and 324 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 07:01:46,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:46,853 INFO L93 Difference]: Finished difference Result 253 states and 379 transitions. [2022-11-19 07:01:46,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:01:46,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2022-11-19 07:01:46,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:46,856 INFO L225 Difference]: With dead ends: 253 [2022-11-19 07:01:46,856 INFO L226 Difference]: Without dead ends: 252 [2022-11-19 07:01:46,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:01:46,857 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 46 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:46,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 748 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:01:46,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-11-19 07:01:46,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 218. [2022-11-19 07:01:46,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 160 states have (on average 1.46875) internal successors, (235), 167 states have internal predecessors, (235), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-19 07:01:46,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 325 transitions. [2022-11-19 07:01:46,868 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 325 transitions. Word has length 99 [2022-11-19 07:01:46,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:46,869 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 325 transitions. [2022-11-19 07:01:46,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 07:01:46,869 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 325 transitions. [2022-11-19 07:01:46,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-19 07:01:46,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:46,871 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:46,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:47,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:47,085 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:47,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:47,085 INFO L85 PathProgramCache]: Analyzing trace with hash -460604712, now seen corresponding path program 1 times [2022-11-19 07:01:47,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:47,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707268129] [2022-11-19 07:01:47,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:47,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:47,195 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-19 07:01:47,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:47,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707268129] [2022-11-19 07:01:47,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707268129] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:47,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645483616] [2022-11-19 07:01:47,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:47,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:47,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:47,197 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:47,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-19 07:01:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:47,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:01:47,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:47,379 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-19 07:01:47,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:47,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645483616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:47,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:47,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-19 07:01:47,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997488018] [2022-11-19 07:01:47,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:47,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:01:47,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:47,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:01:47,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:01:47,381 INFO L87 Difference]: Start difference. First operand 218 states and 325 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 07:01:47,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:47,465 INFO L93 Difference]: Finished difference Result 285 states and 434 transitions. [2022-11-19 07:01:47,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:01:47,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2022-11-19 07:01:47,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:47,468 INFO L225 Difference]: With dead ends: 285 [2022-11-19 07:01:47,468 INFO L226 Difference]: Without dead ends: 284 [2022-11-19 07:01:47,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:01:47,469 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 72 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:47,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 813 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:01:47,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-11-19 07:01:47,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 219. [2022-11-19 07:01:47,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 161 states have (on average 1.4658385093167703) internal successors, (236), 168 states have internal predecessors, (236), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-19 07:01:47,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 326 transitions. [2022-11-19 07:01:47,490 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 326 transitions. Word has length 100 [2022-11-19 07:01:47,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:47,490 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 326 transitions. [2022-11-19 07:01:47,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 07:01:47,490 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 326 transitions. [2022-11-19 07:01:47,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-19 07:01:47,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:47,492 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:47,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:47,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-19 07:01:47,704 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:47,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:47,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1718973124, now seen corresponding path program 1 times [2022-11-19 07:01:47,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:47,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946399509] [2022-11-19 07:01:47,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:47,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:47,815 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-19 07:01:47,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:47,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946399509] [2022-11-19 07:01:47,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946399509] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:47,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097106687] [2022-11-19 07:01:47,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:47,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:47,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:47,818 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:47,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-19 07:01:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:47,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:01:47,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:48,031 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-19 07:01:48,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:48,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097106687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:48,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:48,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-19 07:01:48,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511388031] [2022-11-19 07:01:48,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:48,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:01:48,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:48,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:01:48,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:01:48,033 INFO L87 Difference]: Start difference. First operand 219 states and 326 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-19 07:01:48,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:48,260 INFO L93 Difference]: Finished difference Result 482 states and 737 transitions. [2022-11-19 07:01:48,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:01:48,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 101 [2022-11-19 07:01:48,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:48,263 INFO L225 Difference]: With dead ends: 482 [2022-11-19 07:01:48,263 INFO L226 Difference]: Without dead ends: 319 [2022-11-19 07:01:48,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:01:48,265 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 116 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:48,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1601 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:01:48,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-11-19 07:01:48,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 225. [2022-11-19 07:01:48,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 166 states have (on average 1.4578313253012047) internal successors, (242), 173 states have internal predecessors, (242), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-11-19 07:01:48,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 334 transitions. [2022-11-19 07:01:48,277 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 334 transitions. Word has length 101 [2022-11-19 07:01:48,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:48,277 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 334 transitions. [2022-11-19 07:01:48,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-19 07:01:48,278 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 334 transitions. [2022-11-19 07:01:48,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-19 07:01:48,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:48,280 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:48,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:48,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-19 07:01:48,486 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:48,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:48,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1020261436, now seen corresponding path program 1 times [2022-11-19 07:01:48,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:48,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671300295] [2022-11-19 07:01:48,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:48,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:48,606 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-19 07:01:48,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:48,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671300295] [2022-11-19 07:01:48,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671300295] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:48,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858075275] [2022-11-19 07:01:48,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:48,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:48,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:48,609 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:48,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-19 07:01:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:48,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:01:48,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:48,831 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-19 07:01:48,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:48,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858075275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:48,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:48,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-19 07:01:48,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243149447] [2022-11-19 07:01:48,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:48,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:01:48,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:48,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:01:48,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:01:48,834 INFO L87 Difference]: Start difference. First operand 225 states and 334 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-19 07:01:49,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:49,078 INFO L93 Difference]: Finished difference Result 321 states and 490 transitions. [2022-11-19 07:01:49,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:01:49,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 101 [2022-11-19 07:01:49,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:49,081 INFO L225 Difference]: With dead ends: 321 [2022-11-19 07:01:49,081 INFO L226 Difference]: Without dead ends: 320 [2022-11-19 07:01:49,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:01:49,082 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 120 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:49,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1482 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:01:49,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-11-19 07:01:49,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 222. [2022-11-19 07:01:49,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 164 states have (on average 1.4573170731707317) internal successors, (239), 171 states have internal predecessors, (239), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-19 07:01:49,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 329 transitions. [2022-11-19 07:01:49,094 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 329 transitions. Word has length 101 [2022-11-19 07:01:49,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:49,094 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 329 transitions. [2022-11-19 07:01:49,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-19 07:01:49,095 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 329 transitions. [2022-11-19 07:01:49,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-19 07:01:49,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:49,097 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:49,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:49,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-19 07:01:49,303 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:49,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:49,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1748558948, now seen corresponding path program 1 times [2022-11-19 07:01:49,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:49,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101033439] [2022-11-19 07:01:49,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:49,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:49,404 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-19 07:01:49,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:49,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101033439] [2022-11-19 07:01:49,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101033439] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:49,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280323469] [2022-11-19 07:01:49,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:49,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:49,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:49,406 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:49,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-19 07:01:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:49,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:01:49,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:49,605 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-19 07:01:49,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:49,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280323469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:49,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:49,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-19 07:01:49,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304502191] [2022-11-19 07:01:49,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:49,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:01:49,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:49,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:01:49,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:01:49,609 INFO L87 Difference]: Start difference. First operand 222 states and 329 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 07:01:49,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:49,698 INFO L93 Difference]: Finished difference Result 279 states and 423 transitions. [2022-11-19 07:01:49,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:01:49,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2022-11-19 07:01:49,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:49,706 INFO L225 Difference]: With dead ends: 279 [2022-11-19 07:01:49,706 INFO L226 Difference]: Without dead ends: 278 [2022-11-19 07:01:49,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:01:49,708 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 80 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:49,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 787 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:01:49,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-11-19 07:01:49,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 219. [2022-11-19 07:01:49,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 162 states have (on average 1.4567901234567902) internal successors, (236), 168 states have internal predecessors, (236), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-19 07:01:49,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 326 transitions. [2022-11-19 07:01:49,720 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 326 transitions. Word has length 102 [2022-11-19 07:01:49,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:49,720 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 326 transitions. [2022-11-19 07:01:49,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 07:01:49,721 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 326 transitions. [2022-11-19 07:01:49,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-19 07:01:49,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:01:49,723 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:49,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:49,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:49,929 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:01:49,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:01:49,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1543814784, now seen corresponding path program 1 times [2022-11-19 07:01:49,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:01:49,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539584765] [2022-11-19 07:01:49,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:49,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:01:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:50,022 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-19 07:01:50,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:01:50,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539584765] [2022-11-19 07:01:50,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539584765] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:01:50,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149441994] [2022-11-19 07:01:50,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:01:50,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:50,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:01:50,025 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:01:50,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-19 07:01:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:01:50,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:01:50,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:01:50,289 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-19 07:01:50,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:01:50,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149441994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:01:50,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:01:50,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2022-11-19 07:01:50,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304791474] [2022-11-19 07:01:50,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:01:50,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:01:50,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:01:50,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:01:50,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-19 07:01:50,291 INFO L87 Difference]: Start difference. First operand 219 states and 326 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-19 07:01:50,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:01:50,602 INFO L93 Difference]: Finished difference Result 380 states and 591 transitions. [2022-11-19 07:01:50,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 07:01:50,603 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 103 [2022-11-19 07:01:50,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:01:50,603 INFO L225 Difference]: With dead ends: 380 [2022-11-19 07:01:50,603 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:01:50,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2022-11-19 07:01:50,605 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 217 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:01:50,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 2088 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:01:50,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:01:50,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:01:50,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:01:50,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:01:50,606 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2022-11-19 07:01:50,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:01:50,607 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:01:50,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-19 07:01:50,607 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:01:50,607 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:01:50,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-19 07:01:50,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-19 07:01:50,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-19 07:01:50,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-19 07:01:50,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-19 07:01:50,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-19 07:01:50,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-19 07:01:50,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-19 07:01:50,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-19 07:01:50,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:01:50,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:01:51,209 INFO L902 garLoopResultBuilder]: At program point L119(line 119) the Hoare annotation is: true [2022-11-19 07:01:51,209 INFO L899 garLoopResultBuilder]: For program point L119-1(line 119) no Hoare annotation was computed. [2022-11-19 07:01:51,210 INFO L899 garLoopResultBuilder]: For program point read_history_int8FINAL(lines 104 123) no Hoare annotation was computed. [2022-11-19 07:01:51,210 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 120) no Hoare annotation was computed. [2022-11-19 07:01:51,210 INFO L899 garLoopResultBuilder]: For program point read_history_int8EXIT(lines 104 123) no Hoare annotation was computed. [2022-11-19 07:01:51,210 INFO L902 garLoopResultBuilder]: At program point read_history_int8ENTRY(lines 104 123) the Hoare annotation is: true [2022-11-19 07:01:51,210 INFO L895 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: (<= |read_history_bool_#in~history_id| read_history_bool_~history_id) [2022-11-19 07:01:51,210 INFO L899 garLoopResultBuilder]: For program point L159-1(line 159) no Hoare annotation was computed. [2022-11-19 07:01:51,211 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 160) no Hoare annotation was computed. [2022-11-19 07:01:51,211 INFO L899 garLoopResultBuilder]: For program point read_history_boolFINAL(lines 124 163) no Hoare annotation was computed. [2022-11-19 07:01:51,211 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 160) no Hoare annotation was computed. [2022-11-19 07:01:51,211 INFO L899 garLoopResultBuilder]: For program point read_history_boolEXIT(lines 124 163) no Hoare annotation was computed. [2022-11-19 07:01:51,211 INFO L902 garLoopResultBuilder]: At program point read_history_boolENTRY(lines 124 163) the Hoare annotation is: true [2022-11-19 07:01:51,211 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 160) no Hoare annotation was computed. [2022-11-19 07:01:51,211 INFO L902 garLoopResultBuilder]: At program point assertENTRY(lines 534 545) the Hoare annotation is: true [2022-11-19 07:01:51,212 INFO L899 garLoopResultBuilder]: For program point assertEXIT(lines 534 545) no Hoare annotation was computed. [2022-11-19 07:01:51,212 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 277) no Hoare annotation was computed. [2022-11-19 07:01:51,212 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 219) no Hoare annotation was computed. [2022-11-19 07:01:51,212 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 301) no Hoare annotation was computed. [2022-11-19 07:01:51,212 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 07:01:51,212 INFO L899 garLoopResultBuilder]: For program point L284(lines 284 294) no Hoare annotation was computed. [2022-11-19 07:01:51,212 INFO L899 garLoopResultBuilder]: For program point L466(lines 466 476) no Hoare annotation was computed. [2022-11-19 07:01:51,213 INFO L902 garLoopResultBuilder]: At program point L367(lines 339 369) the Hoare annotation is: true [2022-11-19 07:01:51,213 INFO L902 garLoopResultBuilder]: At program point L268(line 268) the Hoare annotation is: true [2022-11-19 07:01:51,213 INFO L899 garLoopResultBuilder]: For program point L268-1(line 268) no Hoare annotation was computed. [2022-11-19 07:01:51,213 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 175) no Hoare annotation was computed. [2022-11-19 07:01:51,213 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 291) no Hoare annotation was computed. [2022-11-19 07:01:51,213 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 300) no Hoare annotation was computed. [2022-11-19 07:01:51,213 INFO L899 garLoopResultBuilder]: For program point L451(lines 451 476) no Hoare annotation was computed. [2022-11-19 07:01:51,214 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 288) no Hoare annotation was computed. [2022-11-19 07:01:51,214 INFO L902 garLoopResultBuilder]: At program point L220(line 220) the Hoare annotation is: true [2022-11-19 07:01:51,214 INFO L899 garLoopResultBuilder]: For program point L220-1(line 220) no Hoare annotation was computed. [2022-11-19 07:01:51,214 INFO L902 garLoopResultBuilder]: At program point L336(lines 231 338) the Hoare annotation is: true [2022-11-19 07:01:51,214 INFO L899 garLoopResultBuilder]: For program point L303(line 303) no Hoare annotation was computed. [2022-11-19 07:01:51,214 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 223) no Hoare annotation was computed. [2022-11-19 07:01:51,214 INFO L899 garLoopResultBuilder]: For program point L469(lines 469 476) no Hoare annotation was computed. [2022-11-19 07:01:51,215 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 322) no Hoare annotation was computed. [2022-11-19 07:01:51,215 INFO L895 garLoopResultBuilder]: At program point L271(line 271) the Hoare annotation is: (and (<= |ULTIMATE.start_check_~temp_count~0#1| 0) (<= 0 |ULTIMATE.start_check_~temp_count~0#1|)) [2022-11-19 07:01:51,215 INFO L902 garLoopResultBuilder]: At program point L304-1(lines 304 322) the Hoare annotation is: true [2022-11-19 07:01:51,215 INFO L899 garLoopResultBuilder]: For program point L271-1(line 271) no Hoare annotation was computed. [2022-11-19 07:01:51,215 INFO L902 garLoopResultBuilder]: At program point L305(line 305) the Hoare annotation is: true [2022-11-19 07:01:51,215 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 274) no Hoare annotation was computed. [2022-11-19 07:01:51,216 INFO L899 garLoopResultBuilder]: For program point L305-1(line 305) no Hoare annotation was computed. [2022-11-19 07:01:51,216 INFO L895 garLoopResultBuilder]: At program point L272-2(lines 272 274) the Hoare annotation is: (or (and (<= |ULTIMATE.start_check_~temp_count~0#1| 0) (<= 0 |ULTIMATE.start_check_~temp_count~0#1|)) (and (<= 1 |ULTIMATE.start_check_~temp_count~0#1|) (<= |ULTIMATE.start_check_~temp_count~0#1| 1))) [2022-11-19 07:01:51,216 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:01:51,216 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 321) no Hoare annotation was computed. [2022-11-19 07:01:51,216 INFO L899 garLoopResultBuilder]: For program point L273(line 273) no Hoare annotation was computed. [2022-11-19 07:01:51,216 INFO L899 garLoopResultBuilder]: For program point L273-1(line 273) no Hoare annotation was computed. [2022-11-19 07:01:51,216 INFO L902 garLoopResultBuilder]: At program point L174(line 174) the Hoare annotation is: true [2022-11-19 07:01:51,217 INFO L902 garLoopResultBuilder]: At program point L174-1(lines 164 178) the Hoare annotation is: true [2022-11-19 07:01:51,217 INFO L902 garLoopResultBuilder]: At program point L422-2(lines 416 426) the Hoare annotation is: true [2022-11-19 07:01:51,217 INFO L899 garLoopResultBuilder]: For program point L323(line 323) no Hoare annotation was computed. [2022-11-19 07:01:51,217 INFO L902 garLoopResultBuilder]: At program point L224(line 224) the Hoare annotation is: true [2022-11-19 07:01:51,217 INFO L899 garLoopResultBuilder]: For program point L224-1(line 224) no Hoare annotation was computed. [2022-11-19 07:01:51,217 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 277) no Hoare annotation was computed. [2022-11-19 07:01:51,218 INFO L899 garLoopResultBuilder]: For program point L472(lines 472 476) no Hoare annotation was computed. [2022-11-19 07:01:51,218 INFO L902 garLoopResultBuilder]: At program point L307(line 307) the Hoare annotation is: true [2022-11-19 07:01:51,218 INFO L899 garLoopResultBuilder]: For program point L307-1(line 307) no Hoare annotation was computed. [2022-11-19 07:01:51,218 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 335) no Hoare annotation was computed. [2022-11-19 07:01:51,218 INFO L899 garLoopResultBuilder]: For program point L324-1(lines 324 335) no Hoare annotation was computed. [2022-11-19 07:01:51,218 INFO L902 garLoopResultBuilder]: At program point L258-2(lines 252 262) the Hoare annotation is: true [2022-11-19 07:01:51,218 INFO L899 garLoopResultBuilder]: For program point L308(lines 308 320) no Hoare annotation was computed. [2022-11-19 07:01:51,219 INFO L899 garLoopResultBuilder]: For program point L275(line 275) no Hoare annotation was computed. [2022-11-19 07:01:51,219 INFO L902 garLoopResultBuilder]: At program point L391-2(lines 385 395) the Hoare annotation is: true [2022-11-19 07:01:51,219 INFO L902 garLoopResultBuilder]: At program point L325(line 325) the Hoare annotation is: true [2022-11-19 07:01:51,219 INFO L899 garLoopResultBuilder]: For program point L325-1(line 325) no Hoare annotation was computed. [2022-11-19 07:01:51,219 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 273) no Hoare annotation was computed. [2022-11-19 07:01:51,219 INFO L902 garLoopResultBuilder]: At program point L507(line 507) the Hoare annotation is: true [2022-11-19 07:01:51,219 INFO L899 garLoopResultBuilder]: For program point L507-1(line 507) no Hoare annotation was computed. [2022-11-19 07:01:51,220 INFO L902 garLoopResultBuilder]: At program point L309(line 309) the Hoare annotation is: true [2022-11-19 07:01:51,220 INFO L899 garLoopResultBuilder]: For program point L276(lines 276 278) no Hoare annotation was computed. [2022-11-19 07:01:51,220 INFO L899 garLoopResultBuilder]: For program point L309-1(line 309) no Hoare annotation was computed. [2022-11-19 07:01:51,220 INFO L895 garLoopResultBuilder]: At program point L276-2(lines 276 278) the Hoare annotation is: (and (<= |ULTIMATE.start_check_~temp_count~0#1| 2) (<= 0 (+ |ULTIMATE.start_check_~temp_count~0#1| 2147483648))) [2022-11-19 07:01:51,220 INFO L899 garLoopResultBuilder]: For program point L458(lines 458 476) no Hoare annotation was computed. [2022-11-19 07:01:51,220 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 334) no Hoare annotation was computed. [2022-11-19 07:01:51,221 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 273) no Hoare annotation was computed. [2022-11-19 07:01:51,221 INFO L902 garLoopResultBuilder]: At program point L475(line 475) the Hoare annotation is: true [2022-11-19 07:01:51,221 INFO L899 garLoopResultBuilder]: For program point L475-1(lines 444 476) no Hoare annotation was computed. [2022-11-19 07:01:51,221 INFO L902 garLoopResultBuilder]: At program point L409(line 409) the Hoare annotation is: true [2022-11-19 07:01:51,221 INFO L899 garLoopResultBuilder]: For program point L409-1(lines 407 430) no Hoare annotation was computed. [2022-11-19 07:01:51,221 INFO L899 garLoopResultBuilder]: For program point L310(lines 310 317) no Hoare annotation was computed. [2022-11-19 07:01:51,221 INFO L899 garLoopResultBuilder]: For program point L277(line 277) no Hoare annotation was computed. [2022-11-19 07:01:51,222 INFO L899 garLoopResultBuilder]: For program point L277-1(line 277) no Hoare annotation was computed. [2022-11-19 07:01:51,222 INFO L902 garLoopResultBuilder]: At program point L327(line 327) the Hoare annotation is: true [2022-11-19 07:01:51,222 INFO L902 garLoopResultBuilder]: At program point L360-2(lines 354 364) the Hoare annotation is: true [2022-11-19 07:01:51,222 INFO L899 garLoopResultBuilder]: For program point L327-1(line 327) no Hoare annotation was computed. [2022-11-19 07:01:51,222 INFO L902 garLoopResultBuilder]: At program point L228(lines 204 230) the Hoare annotation is: true [2022-11-19 07:01:51,222 INFO L902 garLoopResultBuilder]: At program point L311(line 311) the Hoare annotation is: true [2022-11-19 07:01:51,222 INFO L899 garLoopResultBuilder]: For program point L311-1(line 311) no Hoare annotation was computed. [2022-11-19 07:01:51,223 INFO L902 garLoopResultBuilder]: At program point L212(line 212) the Hoare annotation is: true [2022-11-19 07:01:51,223 INFO L899 garLoopResultBuilder]: For program point L212-1(line 212) no Hoare annotation was computed. [2022-11-19 07:01:51,223 INFO L899 garLoopResultBuilder]: For program point L427(line 427) no Hoare annotation was computed. [2022-11-19 07:01:51,223 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 333) no Hoare annotation was computed. [2022-11-19 07:01:51,223 INFO L899 garLoopResultBuilder]: For program point L444(lines 444 476) no Hoare annotation was computed. [2022-11-19 07:01:51,223 INFO L902 garLoopResultBuilder]: At program point L378(line 378) the Hoare annotation is: true [2022-11-19 07:01:51,223 INFO L899 garLoopResultBuilder]: For program point L378-1(lines 376 399) no Hoare annotation was computed. [2022-11-19 07:01:51,223 INFO L899 garLoopResultBuilder]: For program point L312(lines 312 314) no Hoare annotation was computed. [2022-11-19 07:01:51,224 INFO L899 garLoopResultBuilder]: For program point L279(line 279) no Hoare annotation was computed. [2022-11-19 07:01:51,224 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 215) no Hoare annotation was computed. [2022-11-19 07:01:51,224 INFO L902 garLoopResultBuilder]: At program point L329(line 329) the Hoare annotation is: true [2022-11-19 07:01:51,224 INFO L895 garLoopResultBuilder]: At program point L296(lines 283 299) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_check_~temp_count~0#1| 2147483648)) [2022-11-19 07:01:51,224 INFO L899 garLoopResultBuilder]: For program point L329-1(line 329) no Hoare annotation was computed. [2022-11-19 07:01:51,224 INFO L902 garLoopResultBuilder]: At program point L263(line 263) the Hoare annotation is: true [2022-11-19 07:01:51,225 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 281) no Hoare annotation was computed. [2022-11-19 07:01:51,225 INFO L899 garLoopResultBuilder]: For program point L280(lines 280 282) no Hoare annotation was computed. [2022-11-19 07:01:51,225 INFO L899 garLoopResultBuilder]: For program point L280-2(lines 269 300) no Hoare annotation was computed. [2022-11-19 07:01:51,225 INFO L902 garLoopResultBuilder]: At program point L528(line 528) the Hoare annotation is: true [2022-11-19 07:01:51,225 INFO L902 garLoopResultBuilder]: At program point L528-1(lines 515 530) the Hoare annotation is: true [2022-11-19 07:01:51,225 INFO L902 garLoopResultBuilder]: At program point L429(lines 401 431) the Hoare annotation is: true [2022-11-19 07:01:51,225 INFO L899 garLoopResultBuilder]: For program point L396(line 396) no Hoare annotation was computed. [2022-11-19 07:01:51,226 INFO L899 garLoopResultBuilder]: For program point L330(lines 330 332) no Hoare annotation was computed. [2022-11-19 07:01:51,226 INFO L899 garLoopResultBuilder]: For program point L264(line 264) no Hoare annotation was computed. [2022-11-19 07:01:51,226 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 281) no Hoare annotation was computed. [2022-11-19 07:01:51,226 INFO L902 garLoopResultBuilder]: At program point L347(line 347) the Hoare annotation is: true [2022-11-19 07:01:51,226 INFO L899 garLoopResultBuilder]: For program point L347-1(lines 345 368) no Hoare annotation was computed. [2022-11-19 07:01:51,226 INFO L899 garLoopResultBuilder]: For program point L281(line 281) no Hoare annotation was computed. [2022-11-19 07:01:51,226 INFO L899 garLoopResultBuilder]: For program point L281-1(line 281) no Hoare annotation was computed. [2022-11-19 07:01:51,227 INFO L899 garLoopResultBuilder]: For program point L265(lines 265 302) no Hoare annotation was computed. [2022-11-19 07:01:51,227 INFO L902 garLoopResultBuilder]: At program point L265-1(lines 265 302) the Hoare annotation is: true [2022-11-19 07:01:51,227 INFO L902 garLoopResultBuilder]: At program point L216(line 216) the Hoare annotation is: true [2022-11-19 07:01:51,227 INFO L899 garLoopResultBuilder]: For program point L216-1(line 216) no Hoare annotation was computed. [2022-11-19 07:01:51,227 INFO L902 garLoopResultBuilder]: At program point L398(lines 370 400) the Hoare annotation is: true [2022-11-19 07:01:51,227 INFO L899 garLoopResultBuilder]: For program point L365(line 365) no Hoare annotation was computed. [2022-11-19 07:01:51,227 INFO L902 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: true [2022-11-19 07:01:51,228 INFO L899 garLoopResultBuilder]: For program point L266-1(line 266) no Hoare annotation was computed. [2022-11-19 07:01:51,228 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 98) no Hoare annotation was computed. [2022-11-19 07:01:51,228 INFO L899 garLoopResultBuilder]: For program point L93-2(lines 75 98) no Hoare annotation was computed. [2022-11-19 07:01:51,228 INFO L899 garLoopResultBuilder]: For program point L89(lines 89 91) no Hoare annotation was computed. [2022-11-19 07:01:51,228 INFO L899 garLoopResultBuilder]: For program point L81(lines 81 98) no Hoare annotation was computed. [2022-11-19 07:01:51,228 INFO L899 garLoopResultBuilder]: For program point L77(lines 77 79) no Hoare annotation was computed. [2022-11-19 07:01:51,228 INFO L899 garLoopResultBuilder]: For program point add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 99) no Hoare annotation was computed. [2022-11-19 07:01:51,229 INFO L895 garLoopResultBuilder]: At program point L94(line 94) the Hoare annotation is: (and (not (= |add_history_type_#in~history_id| 0)) (or (= add_history_type_~var~0 0) (and (<= add_history_type_~var~0 2) (<= 1 add_history_type_~var~0)))) [2022-11-19 07:01:51,229 INFO L899 garLoopResultBuilder]: For program point L94-1(line 94) no Hoare annotation was computed. [2022-11-19 07:01:51,229 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (and (not (= |add_history_type_#in~history_id| 0)) (or (= add_history_type_~var~0 0) (and (<= add_history_type_~var~0 2) (<= 1 add_history_type_~var~0)))) [2022-11-19 07:01:51,229 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2022-11-19 07:01:51,229 INFO L895 garLoopResultBuilder]: At program point L74-2(lines 74 100) the Hoare annotation is: (and (or (not (= |add_history_type_#in~history_id| 0)) (= add_history_type_~history_id 0)) (or (= add_history_type_~var~0 0) (<= 1 add_history_type_~var~0))) [2022-11-19 07:01:51,229 INFO L899 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2022-11-19 07:01:51,230 INFO L899 garLoopResultBuilder]: For program point L99-1(line 99) no Hoare annotation was computed. [2022-11-19 07:01:51,230 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 97) no Hoare annotation was computed. [2022-11-19 07:01:51,230 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 98) no Hoare annotation was computed. [2022-11-19 07:01:51,230 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 85) no Hoare annotation was computed. [2022-11-19 07:01:51,230 INFO L899 garLoopResultBuilder]: For program point add_history_typeEXIT(lines 60 103) no Hoare annotation was computed. [2022-11-19 07:01:51,230 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 98) no Hoare annotation was computed. [2022-11-19 07:01:51,230 INFO L895 garLoopResultBuilder]: At program point L88(line 88) the Hoare annotation is: (and (not (= |add_history_type_#in~history_id| 0)) (or (= add_history_type_~var~0 0) (and (<= add_history_type_~var~0 2) (<= 1 add_history_type_~var~0)))) [2022-11-19 07:01:51,231 INFO L899 garLoopResultBuilder]: For program point L88-1(line 88) no Hoare annotation was computed. [2022-11-19 07:01:51,231 INFO L902 garLoopResultBuilder]: At program point add_history_typeENTRY(lines 60 103) the Hoare annotation is: true [2022-11-19 07:01:51,231 INFO L895 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (let ((.cse0 (= add_history_type_~history_id 0))) (or (and (= add_history_type_~var~0 0) .cse0) (and (<= add_history_type_~var~0 2) .cse0 (<= 1 add_history_type_~var~0)))) [2022-11-19 07:01:51,231 INFO L899 garLoopResultBuilder]: For program point L76-1(line 76) no Hoare annotation was computed. [2022-11-19 07:01:51,231 INFO L899 garLoopResultBuilder]: For program point add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 99) no Hoare annotation was computed. [2022-11-19 07:01:51,231 INFO L899 garLoopResultBuilder]: For program point add_history_typeFINAL(lines 60 103) no Hoare annotation was computed. [2022-11-19 07:01:51,232 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 36 38) the Hoare annotation is: true [2022-11-19 07:01:51,232 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 36 38) no Hoare annotation was computed. [2022-11-19 07:01:51,232 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 200) no Hoare annotation was computed. [2022-11-19 07:01:51,232 INFO L899 garLoopResultBuilder]: For program point write_history_boolEXIT(lines 179 203) no Hoare annotation was computed. [2022-11-19 07:01:51,232 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 200) no Hoare annotation was computed. [2022-11-19 07:01:51,232 INFO L902 garLoopResultBuilder]: At program point write_history_boolENTRY(lines 179 203) the Hoare annotation is: true [2022-11-19 07:01:51,232 INFO L895 garLoopResultBuilder]: At program point L199(line 199) the Hoare annotation is: (<= |write_history_bool_#in~history_id| write_history_bool_~history_id) [2022-11-19 07:01:51,233 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 179 203) no Hoare annotation was computed. [2022-11-19 07:01:51,233 INFO L899 garLoopResultBuilder]: For program point L194(lines 194 200) no Hoare annotation was computed. [2022-11-19 07:01:51,236 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:01:51,238 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:01:51,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:01:51 BoogieIcfgContainer [2022-11-19 07:01:51,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:01:51,252 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:01:51,252 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:01:51,253 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:01:51,253 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:01:37" (3/4) ... [2022-11-19 07:01:51,256 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:01:51,261 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_history_int8 [2022-11-19 07:01:51,261 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_history_bool [2022-11-19 07:01:51,261 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert [2022-11-19 07:01:51,261 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure add_history_type [2022-11-19 07:01:51,261 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-19 07:01:51,262 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure write_history_bool [2022-11-19 07:01:51,271 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2022-11-19 07:01:51,272 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-19 07:01:51,273 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 07:01:51,273 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:01:51,297 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(history_id) == 0) || history_id == 0) && (var == 0 || 1 <= var) [2022-11-19 07:01:51,368 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:01:51,368 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:01:51,368 INFO L158 Benchmark]: Toolchain (without parser) took 15652.50ms. Allocated memory was 140.5MB in the beginning and 207.6MB in the end (delta: 67.1MB). Free memory was 102.7MB in the beginning and 62.5MB in the end (delta: 40.2MB). Peak memory consumption was 106.7MB. Max. memory is 16.1GB. [2022-11-19 07:01:51,369 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 140.5MB. Free memory was 112.7MB in the beginning and 112.7MB in the end (delta: 32.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:01:51,369 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.45ms. Allocated memory is still 140.5MB. Free memory was 102.6MB in the beginning and 109.3MB in the end (delta: -6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:01:51,369 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.43ms. Allocated memory is still 140.5MB. Free memory was 109.3MB in the beginning and 106.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:01:51,370 INFO L158 Benchmark]: Boogie Preprocessor took 36.27ms. Allocated memory is still 140.5MB. Free memory was 106.4MB in the beginning and 103.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:01:51,370 INFO L158 Benchmark]: RCFGBuilder took 1057.04ms. Allocated memory is still 140.5MB. Free memory was 103.8MB in the beginning and 53.5MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-11-19 07:01:51,370 INFO L158 Benchmark]: TraceAbstraction took 13950.83ms. Allocated memory was 140.5MB in the beginning and 207.6MB in the end (delta: 67.1MB). Free memory was 52.7MB in the beginning and 71.9MB in the end (delta: -19.3MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2022-11-19 07:01:51,371 INFO L158 Benchmark]: Witness Printer took 115.64ms. Allocated memory is still 207.6MB. Free memory was 71.9MB in the beginning and 62.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:01:51,372 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 140.5MB. Free memory was 112.7MB in the beginning and 112.7MB in the end (delta: 32.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 428.45ms. Allocated memory is still 140.5MB. Free memory was 102.6MB in the beginning and 109.3MB in the end (delta: -6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.43ms. Allocated memory is still 140.5MB. Free memory was 109.3MB in the beginning and 106.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.27ms. Allocated memory is still 140.5MB. Free memory was 106.4MB in the beginning and 103.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1057.04ms. Allocated memory is still 140.5MB. Free memory was 103.8MB in the beginning and 53.5MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 13950.83ms. Allocated memory was 140.5MB in the beginning and 207.6MB in the end (delta: 67.1MB). Free memory was 52.7MB in the beginning and 71.9MB in the end (delta: -19.3MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * Witness Printer took 115.64ms. Allocated memory is still 207.6MB. Free memory was 71.9MB in the beginning and 62.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 273]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 273]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 277]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 277]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 281]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 281]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 159 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 13.9s, OverallIterations: 20, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1663 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1374 mSDsluCounter, 19083 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13571 mSDsCounter, 102 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2365 IncrementalHoareTripleChecker+Invalid, 2467 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 102 mSolverCounterUnsat, 5512 mSDtfsCounter, 2365 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1620 GetRequests, 1483 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=225occurred in iteration=17, InterpolantAutomatonStates: 111, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 20 MinimizatonAttempts, 808 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 52 LocationsWithAnnotation, 741 PreInvPairs, 873 NumberOfFragments, 165 HoareAnnotationTreeSize, 741 FomulaSimplifications, 2831 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 52 FomulaSimplificationsInter, 121 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 3058 NumberOfCodeBlocks, 3058 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 3021 ConstructedInterpolants, 0 QuantifiedInterpolants, 3481 SizeOfPredicates, 24 NumberOfNonLiveVariables, 7751 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 37 InterpolantComputations, 20 PerfectInterpolantSequences, 1459/1483 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 204]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: 0 <= temp_count + 2147483648 - InvariantResult [Line: 339]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 401]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 370]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: (!(\old(history_id) == 0) || history_id == 0) && (var == 0 || 1 <= var) - InvariantResult [Line: 515]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 07:01:51,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_118c3e28-a58e-4919-b246-5d7511a703da/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE