./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/dll2n_update_all.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 09:13:48,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:13:48,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:13:48,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:13:48,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:13:48,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:13:48,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:13:48,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:13:48,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:13:48,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:13:48,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:13:48,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:13:48,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:13:48,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:13:49,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:13:49,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:13:49,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:13:49,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:13:49,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:13:49,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:13:49,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:13:49,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:13:49,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:13:49,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:13:49,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:13:49,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:13:49,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:13:49,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:13:49,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:13:49,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:13:49,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:13:49,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:13:49,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:13:49,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:13:49,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:13:49,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:13:49,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:13:49,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:13:49,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:13:49,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:13:49,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:13:49,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 09:13:49,031 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:13:49,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:13:49,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:13:49,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:13:49,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:13:49,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:13:49,033 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:13:49,033 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:13:49,033 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:13:49,033 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:13:49,033 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:13:49,033 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:13:49,033 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:13:49,034 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:13:49,034 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:13:49,034 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:13:49,034 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:13:49,034 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:13:49,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:13:49,035 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:13:49,035 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:13:49,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:13:49,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:13:49,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:13:49,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:13:49,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:13:49,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:13:49,036 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 09:13:49,036 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:13:49,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:13:49,036 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:13:49,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:13:49,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:13:49,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:13:49,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:13:49,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:13:49,037 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:13:49,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:13:49,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:13:49,038 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:13:49,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:13:49,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:13:49,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:13:49,038 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_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 [2022-12-14 09:13:49,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:13:49,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:13:49,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:13:49,221 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:13:49,221 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:13:49,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/list-simple/dll2n_update_all.i [2022-12-14 09:13:51,825 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:13:52,007 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:13:52,007 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/sv-benchmarks/c/list-simple/dll2n_update_all.i [2022-12-14 09:13:52,018 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/data/af3b034d4/e7f3c2db44e8470b9b4ddde1f6834453/FLAGfb8b04a46 [2022-12-14 09:13:52,031 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/data/af3b034d4/e7f3c2db44e8470b9b4ddde1f6834453 [2022-12-14 09:13:52,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:13:52,035 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:13:52,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:13:52,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:13:52,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:13:52,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:13:52" (1/1) ... [2022-12-14 09:13:52,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7727da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:52, skipping insertion in model container [2022-12-14 09:13:52,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:13:52" (1/1) ... [2022-12-14 09:13:52,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:13:52,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:13:52,325 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2022-12-14 09:13:52,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:13:52,335 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:13:52,372 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2022-12-14 09:13:52,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:13:52,395 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:13:52,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:52 WrapperNode [2022-12-14 09:13:52,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:13:52,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:13:52,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:13:52,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:13:52,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:52" (1/1) ... [2022-12-14 09:13:52,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:52" (1/1) ... [2022-12-14 09:13:52,435 INFO L138 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 125 [2022-12-14 09:13:52,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:13:52,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:13:52,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:13:52,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:13:52,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:52" (1/1) ... [2022-12-14 09:13:52,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:52" (1/1) ... [2022-12-14 09:13:52,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:52" (1/1) ... [2022-12-14 09:13:52,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:52" (1/1) ... [2022-12-14 09:13:52,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:52" (1/1) ... [2022-12-14 09:13:52,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:52" (1/1) ... [2022-12-14 09:13:52,459 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:52" (1/1) ... [2022-12-14 09:13:52,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:52" (1/1) ... [2022-12-14 09:13:52,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:13:52,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:13:52,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:13:52,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:13:52,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:52" (1/1) ... [2022-12-14 09:13:52,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:13:52,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:13:52,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:13:52,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:13:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-12-14 09:13:52,530 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-12-14 09:13:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:13:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:13:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:13:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:13:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:13:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:13:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:13:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:13:52,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:13:52,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:13:52,608 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:13:52,609 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:13:52,628 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-12-14 09:13:52,787 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:13:52,836 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:13:52,837 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-14 09:13:52,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:13:52 BoogieIcfgContainer [2022-12-14 09:13:52,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:13:52,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:13:52,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:13:52,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:13:52,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:13:52" (1/3) ... [2022-12-14 09:13:52,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b7ba03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:13:52, skipping insertion in model container [2022-12-14 09:13:52,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:52" (2/3) ... [2022-12-14 09:13:52,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b7ba03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:13:52, skipping insertion in model container [2022-12-14 09:13:52,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:13:52" (3/3) ... [2022-12-14 09:13:52,858 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_update_all.i [2022-12-14 09:13:52,875 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:13:52,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-12-14 09:13:52,929 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:13:52,934 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;@50b6bb7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:13:52,934 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-12-14 09:13:52,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 41 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:52,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 09:13:52,943 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:52,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 09:13:52,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:13:52,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:52,950 INFO L85 PathProgramCache]: Analyzing trace with hash 5698377, now seen corresponding path program 1 times [2022-12-14 09:13:52,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:52,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928137472] [2022-12-14 09:13:52,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:52,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:13:53,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:53,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928137472] [2022-12-14 09:13:53,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928137472] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:13:53,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:13:53,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:13:53,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939914270] [2022-12-14 09:13:53,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:13:53,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:13:53,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:13:53,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:13:53,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:13:53,181 INFO L87 Difference]: Start difference. First operand has 43 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 41 states have internal predecessors, (49), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:53,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:13:53,240 INFO L93 Difference]: Finished difference Result 83 states and 97 transitions. [2022-12-14 09:13:53,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:13:53,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 09:13:53,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:13:53,247 INFO L225 Difference]: With dead ends: 83 [2022-12-14 09:13:53,247 INFO L226 Difference]: Without dead ends: 44 [2022-12-14 09:13:53,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:13:53,252 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 7 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:13:53,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 75 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:13:53,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-12-14 09:13:53,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2022-12-14 09:13:53,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.75) internal successors, (42), 37 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:53,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-12-14 09:13:53,279 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 4 [2022-12-14 09:13:53,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:13:53,279 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-12-14 09:13:53,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:53,279 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-12-14 09:13:53,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:13:53,280 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:53,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:13:53,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:13:53,280 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:13:53,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:53,281 INFO L85 PathProgramCache]: Analyzing trace with hash 172277975, now seen corresponding path program 1 times [2022-12-14 09:13:53,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:53,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578712375] [2022-12-14 09:13:53,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:53,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:53,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:13:53,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:53,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578712375] [2022-12-14 09:13:53,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578712375] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:13:53,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:13:53,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:13:53,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640997194] [2022-12-14 09:13:53,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:13:53,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:13:53,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:13:53,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:13:53,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:13:53,432 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:53,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:13:53,495 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2022-12-14 09:13:53,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:13:53,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 09:13:53,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:13:53,497 INFO L225 Difference]: With dead ends: 44 [2022-12-14 09:13:53,497 INFO L226 Difference]: Without dead ends: 43 [2022-12-14 09:13:53,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:13:53,499 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 5 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:13:53,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 91 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:13:53,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-14 09:13:53,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2022-12-14 09:13:53,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 40 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:53,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-12-14 09:13:53,505 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 5 [2022-12-14 09:13:53,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:13:53,505 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-12-14 09:13:53,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:53,505 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-12-14 09:13:53,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 09:13:53,506 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:53,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 09:13:53,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:13:53,506 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:13:53,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:53,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1045649994, now seen corresponding path program 1 times [2022-12-14 09:13:53,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:53,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808092984] [2022-12-14 09:13:53,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:53,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:53,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:13:53,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:53,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808092984] [2022-12-14 09:13:53,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808092984] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:13:53,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:13:53,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:13:53,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791256772] [2022-12-14 09:13:53,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:13:53,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:13:53,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:13:53,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:13:53,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:13:53,601 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:53,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:13:53,660 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2022-12-14 09:13:53,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:13:53,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 09:13:53,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:13:53,661 INFO L225 Difference]: With dead ends: 43 [2022-12-14 09:13:53,661 INFO L226 Difference]: Without dead ends: 42 [2022-12-14 09:13:53,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:13:53,662 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:13:53,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 92 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:13:53,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-12-14 09:13:53,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-12-14 09:13:53,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:53,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-12-14 09:13:53,668 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 6 [2022-12-14 09:13:53,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:13:53,668 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-12-14 09:13:53,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:53,668 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-12-14 09:13:53,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 09:13:53,668 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:53,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:13:53,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:13:53,669 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:13:53,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:53,670 INFO L85 PathProgramCache]: Analyzing trace with hash -438639592, now seen corresponding path program 1 times [2022-12-14 09:13:53,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:53,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707529989] [2022-12-14 09:13:53,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:53,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:53,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:13:53,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:53,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707529989] [2022-12-14 09:13:53,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707529989] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:13:53,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707340194] [2022-12-14 09:13:53,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:53,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:13:53,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:13:53,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:13:53,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:13:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:53,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:13:53,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:13:53,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:13:53,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:13:53,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:13:53,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707340194] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:13:53,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1952060447] [2022-12-14 09:13:53,924 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 09:13:53,924 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:13:53,927 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:13:53,930 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:13:53,931 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:13:54,029 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 09:13:54,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 09:13:54,073 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:13:54,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:13:54,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:13:54,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:13:54,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-12-14 09:13:54,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 09:13:54,265 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 09:13:54,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 09:13:54,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 09:13:54,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 46 [2022-12-14 09:13:54,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 58 [2022-12-14 09:13:54,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 44 [2022-12-14 09:13:54,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 56 [2022-12-14 09:13:54,678 INFO L321 Elim1Store]: treesize reduction 132, result has 17.0 percent of original size [2022-12-14 09:13:54,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 427 treesize of output 432 [2022-12-14 09:13:54,741 INFO L321 Elim1Store]: treesize reduction 196, result has 10.5 percent of original size [2022-12-14 09:13:54,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 432 treesize of output 432 [2022-12-14 09:13:54,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 38 [2022-12-14 09:13:54,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 46 [2022-12-14 09:13:54,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 46 [2022-12-14 09:13:54,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:54,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 56 [2022-12-14 09:13:55,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:13:55,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:13:55,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:13:55,182 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:13:55,214 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 09:13:55,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 185 [2022-12-14 09:13:55,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,244 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:13:55,270 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:13:55,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 159 [2022-12-14 09:13:55,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 09:13:55,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:13:55,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:13:55,394 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 09:13:55,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-12-14 09:13:55,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:13:55,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 110 [2022-12-14 09:13:55,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 84 [2022-12-14 09:13:55,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:13:55,496 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:13:56,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1952060447] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:13:56,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:13:56,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 4] total 10 [2022-12-14 09:13:56,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81561036] [2022-12-14 09:13:56,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:13:56,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:13:56,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:13:56,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:13:56,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=77, Unknown=2, NotChecked=0, Total=110 [2022-12-14 09:13:56,678 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:57,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:13:57,369 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2022-12-14 09:13:57,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:13:57,370 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 09:13:57,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:13:57,370 INFO L225 Difference]: With dead ends: 71 [2022-12-14 09:13:57,370 INFO L226 Difference]: Without dead ends: 52 [2022-12-14 09:13:57,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=38, Invalid=91, Unknown=3, NotChecked=0, Total=132 [2022-12-14 09:13:57,371 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 56 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:13:57,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 52 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:13:57,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-12-14 09:13:57,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 39. [2022-12-14 09:13:57,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 38 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:57,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-12-14 09:13:57,376 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 9 [2022-12-14 09:13:57,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:13:57,376 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-12-14 09:13:57,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:57,376 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-12-14 09:13:57,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 09:13:57,376 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:57,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:13:57,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:13:57,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-12-14 09:13:57,579 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:13:57,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:57,580 INFO L85 PathProgramCache]: Analyzing trace with hash 2073482556, now seen corresponding path program 1 times [2022-12-14 09:13:57,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:57,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261369891] [2022-12-14 09:13:57,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:57,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:57,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 09:13:57,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:57,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261369891] [2022-12-14 09:13:57,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261369891] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:13:57,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:13:57,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:13:57,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728596541] [2022-12-14 09:13:57,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:13:57,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:13:57,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:13:57,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:13:57,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:13:57,658 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:57,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:13:57,729 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-12-14 09:13:57,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:13:57,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 09:13:57,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:13:57,730 INFO L225 Difference]: With dead ends: 63 [2022-12-14 09:13:57,731 INFO L226 Difference]: Without dead ends: 61 [2022-12-14 09:13:57,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:13:57,732 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 23 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:13:57,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 62 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:13:57,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-14 09:13:57,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 44. [2022-12-14 09:13:57,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 32 states have (on average 1.59375) internal successors, (51), 43 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:57,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2022-12-14 09:13:57,737 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 12 [2022-12-14 09:13:57,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:13:57,737 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2022-12-14 09:13:57,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:57,737 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2022-12-14 09:13:57,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 09:13:57,737 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:57,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:13:57,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:13:57,738 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:13:57,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:57,738 INFO L85 PathProgramCache]: Analyzing trace with hash 2073479165, now seen corresponding path program 1 times [2022-12-14 09:13:57,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:57,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824449943] [2022-12-14 09:13:57,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:57,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:57,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 09:13:57,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:57,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824449943] [2022-12-14 09:13:57,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824449943] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:13:57,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:13:57,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:13:57,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156896154] [2022-12-14 09:13:57,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:13:57,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:13:57,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:13:57,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:13:57,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:13:57,783 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:57,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:13:57,863 INFO L93 Difference]: Finished difference Result 126 states and 141 transitions. [2022-12-14 09:13:57,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:13:57,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 09:13:57,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:13:57,865 INFO L225 Difference]: With dead ends: 126 [2022-12-14 09:13:57,865 INFO L226 Difference]: Without dead ends: 92 [2022-12-14 09:13:57,865 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 [2022-12-14 09:13:57,866 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 73 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:13:57,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 69 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:13:57,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-12-14 09:13:57,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 42. [2022-12-14 09:13:57,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:57,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-12-14 09:13:57,873 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 12 [2022-12-14 09:13:57,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:13:57,873 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-12-14 09:13:57,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:13:57,874 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-12-14 09:13:57,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 09:13:57,874 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:57,874 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:13:57,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:13:57,874 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:13:57,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:57,874 INFO L85 PathProgramCache]: Analyzing trace with hash 899281042, now seen corresponding path program 1 times [2022-12-14 09:13:57,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:57,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980217128] [2022-12-14 09:13:57,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:57,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:57,928 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:13:57,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:57,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980217128] [2022-12-14 09:13:57,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980217128] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:13:57,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723450694] [2022-12-14 09:13:57,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:57,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:13:57,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:13:57,930 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:13:57,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:13:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:57,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:13:57,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:13:58,008 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:13:58,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:13:58,023 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:13:58,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723450694] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:13:58,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [550827734] [2022-12-14 09:13:58,025 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-12-14 09:13:58,026 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:13:58,026 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:13:58,026 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:13:58,026 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:13:58,053 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 09:13:58,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 09:13:58,085 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:13:58,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:13:58,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:13:58,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:13:58,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-12-14 09:13:58,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 09:13:58,254 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-12-14 09:13:58,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-12-14 09:13:58,283 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 09:13:58,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-12-14 09:13:58,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,675 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 09:13:58,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 311 treesize of output 289 [2022-12-14 09:13:58,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,738 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 09:13:58,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 315 treesize of output 292 [2022-12-14 09:13:58,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 304 treesize of output 295 [2022-12-14 09:13:58,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:13:58,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:13:58,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,788 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:13:58,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:13:58,850 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-12-14 09:13:58,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 451 treesize of output 474 [2022-12-14 09:13:58,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 322 treesize of output 313 [2022-12-14 09:13:58,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:58,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:13:58,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:13:58,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:13:58,948 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-12-14 09:13:58,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 444 treesize of output 468 [2022-12-14 09:13:59,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 471 treesize of output 418 [2022-12-14 09:13:59,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 09:13:59,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 398 treesize of output 384 [2022-12-14 09:13:59,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,259 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 09:13:59,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 434 treesize of output 381 [2022-12-14 09:13:59,346 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-12-14 09:13:59,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 531 treesize of output 462 [2022-12-14 09:13:59,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 447 treesize of output 407 [2022-12-14 09:13:59,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 377 treesize of output 371 [2022-12-14 09:13:59,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:13:59,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:13:59,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,661 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:13:59,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:13:59,690 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 09:13:59,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-12-14 09:13:59,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:13:59,741 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:13:59,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 159 [2022-12-14 09:13:59,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 09:13:59,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:13:59,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:13:59,852 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 09:13:59,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 101 [2022-12-14 09:13:59,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-12-14 09:13:59,909 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-12-14 09:13:59,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 143 treesize of output 122 [2022-12-14 09:13:59,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:59,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 78 [2022-12-14 09:14:00,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:00,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:00,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:00,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:00,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:00,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:00,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:00,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:00,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:00,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:00,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:00,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:00,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:00,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:00,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:00,322 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 09:14:00,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-12-14 09:14:00,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:00,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:00,347 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:00,375 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:00,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 159 [2022-12-14 09:14:00,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:00,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 09:14:00,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:00,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:14:00,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:00,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:00,476 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 09:14:00,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 101 [2022-12-14 09:14:00,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:00,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:00,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-12-14 09:14:00,553 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-12-14 09:14:00,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 143 treesize of output 122 [2022-12-14 09:14:00,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:00,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:00,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 78 [2022-12-14 09:14:00,602 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:14:01,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [550827734] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:01,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:14:01,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4, 4] total 13 [2022-12-14 09:14:01,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571704218] [2022-12-14 09:14:01,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:01,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 09:14:01,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:01,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 09:14:01,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=138, Unknown=2, NotChecked=0, Total=182 [2022-12-14 09:14:01,550 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:02,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:02,052 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2022-12-14 09:14:02,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 09:14:02,052 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-12-14 09:14:02,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:02,053 INFO L225 Difference]: With dead ends: 76 [2022-12-14 09:14:02,053 INFO L226 Difference]: Without dead ends: 70 [2022-12-14 09:14:02,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=63, Invalid=207, Unknown=2, NotChecked=0, Total=272 [2022-12-14 09:14:02,053 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 126 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:02,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 85 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 157 Invalid, 1 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:14:02,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-12-14 09:14:02,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 49. [2022-12-14 09:14:02,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 37 states have (on average 1.4864864864864864) internal successors, (55), 48 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:02,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2022-12-14 09:14:02,059 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 15 [2022-12-14 09:14:02,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:02,059 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2022-12-14 09:14:02,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:02,059 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2022-12-14 09:14:02,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 09:14:02,060 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:02,060 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:02,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 09:14:02,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 09:14:02,261 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:14:02,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:02,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1524387517, now seen corresponding path program 1 times [2022-12-14 09:14:02,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:02,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053329766] [2022-12-14 09:14:02,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:02,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:02,307 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 09:14:02,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:02,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053329766] [2022-12-14 09:14:02,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053329766] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:02,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:14:02,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:14:02,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560823382] [2022-12-14 09:14:02,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:02,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:14:02,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:02,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:14:02,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:14:02,309 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:02,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:02,348 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2022-12-14 09:14:02,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:14:02,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-12-14 09:14:02,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:02,349 INFO L225 Difference]: With dead ends: 49 [2022-12-14 09:14:02,349 INFO L226 Difference]: Without dead ends: 48 [2022-12-14 09:14:02,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:14:02,350 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:02,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 54 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:14:02,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-14 09:14:02,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-12-14 09:14:02,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 47 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:02,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2022-12-14 09:14:02,356 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 18 [2022-12-14 09:14:02,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:02,356 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2022-12-14 09:14:02,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:02,356 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2022-12-14 09:14:02,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 09:14:02,357 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:02,357 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:02,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:14:02,357 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:14:02,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:02,357 INFO L85 PathProgramCache]: Analyzing trace with hash -11372675, now seen corresponding path program 1 times [2022-12-14 09:14:02,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:02,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30045998] [2022-12-14 09:14:02,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:02,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:02,410 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 09:14:02,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:02,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30045998] [2022-12-14 09:14:02,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30045998] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:14:02,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659140862] [2022-12-14 09:14:02,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:02,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:02,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:14:02,412 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:14:02,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:14:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:02,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:14:02,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:14:02,506 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 09:14:02,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:14:02,523 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 09:14:02,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659140862] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:14:02,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2013151144] [2022-12-14 09:14:02,525 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 09:14:02,525 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:14:02,525 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:14:02,526 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:14:02,526 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:14:02,557 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 09:14:02,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 09:14:02,585 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:14:02,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:14:02,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:02,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:02,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:14:02,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:02,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:02,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-12-14 09:14:02,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:02,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:02,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 09:14:02,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:02,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:02,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:14:02,754 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-12-14 09:14:02,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-12-14 09:14:02,788 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 09:14:02,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-12-14 09:14:02,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:02,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,009 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 09:14:03,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 233 treesize of output 219 [2022-12-14 09:14:03,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,061 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 09:14:03,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 237 treesize of output 222 [2022-12-14 09:14:03,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 217 [2022-12-14 09:14:03,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:03,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:03,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:03,211 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-12-14 09:14:03,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 373 treesize of output 401 [2022-12-14 09:14:03,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 304 treesize of output 295 [2022-12-14 09:14:03,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,261 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:03,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:03,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 438 treesize of output 473 [2022-12-14 09:14:03,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 407 treesize of output 349 [2022-12-14 09:14:03,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 09:14:03,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 315 [2022-12-14 09:14:03,369 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-12-14 09:14:03,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 121 treesize of output 66 [2022-12-14 09:14:03,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2022-12-14 09:14:03,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:03,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 17 [2022-12-14 09:14:03,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,463 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 09:14:03,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 365 treesize of output 320 [2022-12-14 09:14:03,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:03,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:03,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:03,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:03,866 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 09:14:03,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 185 [2022-12-14 09:14:03,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,890 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:03,916 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:03,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 159 [2022-12-14 09:14:03,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-12-14 09:14:03,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:03,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:03,996 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 09:14:03,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-12-14 09:14:04,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:04,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:04,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:14:04,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-12-14 09:14:04,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:04,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:04,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-12-14 09:14:04,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:14:04,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:04,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:04,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:04,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:04,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:04,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:04,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:04,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:04,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:04,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:04,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:04,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:04,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:04,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:04,454 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:04,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 189 [2022-12-14 09:14:04,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:04,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:04,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:04,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:04,497 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-12-14 09:14:04,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-12-14 09:14:04,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:04,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:04,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-12-14 09:14:04,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:04,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:04,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-12-14 09:14:04,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:04,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:04,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-12-14 09:14:04,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:14:04,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 45 [2022-12-14 09:14:04,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:04,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:04,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-12-14 09:14:04,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:14:04,766 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:14:06,036 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1435#(and (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (exists ((|v_ULTIMATE.start_dll_update_at_~head#1.base_18| Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_18| Int)) (and (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_dll_update_at_~head#1.base_18|) (+ |v_ULTIMATE.start_dll_update_at_~head#1.offset_18| 4)) |ULTIMATE.start_dll_update_at_~head#1.base|) (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_18| 0) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_update_at_~head#1.base_18|) (+ |v_ULTIMATE.start_dll_update_at_~head#1.offset_18| 4)) |ULTIMATE.start_dll_update_at_~head#1.offset|) (<= 0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_18|))) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (= |ULTIMATE.start_dll_update_at_#t~post11#1| |ULTIMATE.start_dll_update_at_~index#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (< 2147483648 |ULTIMATE.start_dll_update_at_#t~post11#1|) (<= 0 |ULTIMATE.start_dll_update_at_#in~index#1|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= 2 |ULTIMATE.start_dll_update_at_~data#1|) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_main_~new_data~0#1|) (<= 2 |ULTIMATE.start_dll_update_at_#in~data#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2022-12-14 09:14:06,037 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:14:06,037 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:14:06,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2022-12-14 09:14:06,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699997580] [2022-12-14 09:14:06,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:14:06,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:14:06,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:06,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:14:06,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=189, Unknown=2, NotChecked=0, Total=240 [2022-12-14 09:14:06,038 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:06,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:06,081 INFO L93 Difference]: Finished difference Result 94 states and 106 transitions. [2022-12-14 09:14:06,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:14:06,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-12-14 09:14:06,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:06,082 INFO L225 Difference]: With dead ends: 94 [2022-12-14 09:14:06,082 INFO L226 Difference]: Without dead ends: 53 [2022-12-14 09:14:06,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=55, Invalid=215, Unknown=2, NotChecked=0, Total=272 [2022-12-14 09:14:06,083 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 6 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:06,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 114 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:14:06,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-14 09:14:06,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-12-14 09:14:06,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 52 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:06,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2022-12-14 09:14:06,089 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 19 [2022-12-14 09:14:06,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:06,089 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2022-12-14 09:14:06,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:06,089 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2022-12-14 09:14:06,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 09:14:06,089 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:06,089 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:06,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 09:14:06,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:06,290 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:14:06,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:06,291 INFO L85 PathProgramCache]: Analyzing trace with hash 677572302, now seen corresponding path program 2 times [2022-12-14 09:14:06,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:06,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876700162] [2022-12-14 09:14:06,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:06,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:06,413 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 09:14:06,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:06,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876700162] [2022-12-14 09:14:06,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876700162] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:14:06,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104363733] [2022-12-14 09:14:06,413 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 09:14:06,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:06,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:14:06,414 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:14:06,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:14:06,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 09:14:06,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:14:06,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:14:06,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:14:06,519 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 09:14:06,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:14:06,565 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 09:14:06,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104363733] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:14:06,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1784409498] [2022-12-14 09:14:06,567 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 09:14:06,567 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:14:06,567 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:14:06,567 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:14:06,567 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:14:06,606 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 09:14:06,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 09:14:06,632 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:14:06,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:14:06,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:06,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:06,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-12-14 09:14:06,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:06,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:06,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 09:14:06,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:06,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:06,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:14:06,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:06,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:06,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:14:06,796 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-12-14 09:14:06,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-12-14 09:14:06,826 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 09:14:06,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-12-14 09:14:07,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:07,141 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 09:14:07,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 241 treesize of output 227 [2022-12-14 09:14:07,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:07,195 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 09:14:07,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 245 treesize of output 230 [2022-12-14 09:14:07,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 225 [2022-12-14 09:14:07,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 225 [2022-12-14 09:14:07,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:07,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:07,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,254 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:07,290 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-12-14 09:14:07,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 381 treesize of output 399 [2022-12-14 09:14:07,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:07,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:07,343 INFO L321 Elim1Store]: treesize reduction 90, result has 37.9 percent of original size [2022-12-14 09:14:07,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 398 treesize of output 427 [2022-12-14 09:14:07,538 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-12-14 09:14:07,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 326 treesize of output 257 [2022-12-14 09:14:07,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 190 [2022-12-14 09:14:07,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 25 [2022-12-14 09:14:07,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 642 treesize of output 589 [2022-12-14 09:14:07,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 09:14:07,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 569 treesize of output 539 [2022-12-14 09:14:07,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:07,665 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 09:14:07,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 589 treesize of output 544 [2022-12-14 09:14:07,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:07,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:07,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,919 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:07,919 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:07,947 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 09:14:07,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 185 [2022-12-14 09:14:07,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:07,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:07,997 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:07,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 164 [2022-12-14 09:14:08,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 09:14:08,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:14:08,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:08,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-12-14 09:14:08,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-12-14 09:14:08,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:14:08,115 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-12-14 09:14:08,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 57 [2022-12-14 09:14:08,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2022-12-14 09:14:08,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:14:08,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:08,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:08,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:08,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:08,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:08,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:08,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:08,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:08,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:08,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:08,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:08,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:08,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:08,465 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 09:14:08,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-12-14 09:14:08,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,490 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:08,513 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:08,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 164 [2022-12-14 09:14:08,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 09:14:08,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:14:08,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:08,589 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 09:14:08,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-12-14 09:14:08,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:14:08,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 65 [2022-12-14 09:14:08,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:08,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-12-14 09:14:08,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 3 [2022-12-14 09:14:08,734 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:14:10,069 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1780#(and (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (= |ULTIMATE.start_dll_update_at_#t~post11#1| |ULTIMATE.start_dll_update_at_~index#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (< 2147483648 |ULTIMATE.start_dll_update_at_#t~post11#1|) (<= 0 |ULTIMATE.start_dll_update_at_#in~index#1|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (exists ((|v_ULTIMATE.start_dll_update_at_~head#1.base_24| Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_24| Int)) (and (<= 0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_24|) (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_24| 0) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_dll_update_at_~head#1.base_24|) (+ |v_ULTIMATE.start_dll_update_at_~head#1.offset_24| 4)) |ULTIMATE.start_dll_update_at_~head#1.base|) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_update_at_~head#1.base_24|) (+ |v_ULTIMATE.start_dll_update_at_~head#1.offset_24| 4)) |ULTIMATE.start_dll_update_at_~head#1.offset|))) (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= 2 |ULTIMATE.start_dll_update_at_~data#1|) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_main_~new_data~0#1|) (<= 2 |ULTIMATE.start_dll_update_at_#in~data#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2022-12-14 09:14:10,069 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:14:10,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:14:10,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 11 [2022-12-14 09:14:10,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566681071] [2022-12-14 09:14:10,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:14:10,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:14:10,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:10,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:14:10,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=375, Unknown=2, NotChecked=0, Total=462 [2022-12-14 09:14:10,071 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:10,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:10,223 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2022-12-14 09:14:10,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 09:14:10,224 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 09:14:10,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:10,225 INFO L225 Difference]: With dead ends: 70 [2022-12-14 09:14:10,225 INFO L226 Difference]: Without dead ends: 67 [2022-12-14 09:14:10,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=146, Invalid=608, Unknown=2, NotChecked=0, Total=756 [2022-12-14 09:14:10,226 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 195 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:10,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 81 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:14:10,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-12-14 09:14:10,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 49. [2022-12-14 09:14:10,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 48 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:10,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2022-12-14 09:14:10,233 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 24 [2022-12-14 09:14:10,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:10,233 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2022-12-14 09:14:10,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:10,234 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2022-12-14 09:14:10,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 09:14:10,234 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:10,234 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:10,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 09:14:10,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 09:14:10,436 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:14:10,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:10,437 INFO L85 PathProgramCache]: Analyzing trace with hash -459606367, now seen corresponding path program 1 times [2022-12-14 09:14:10,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:10,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816794401] [2022-12-14 09:14:10,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:10,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:10,517 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 09:14:10,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:10,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816794401] [2022-12-14 09:14:10,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816794401] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:10,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:14:10,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:14:10,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086905756] [2022-12-14 09:14:10,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:10,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:14:10,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:10,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:14:10,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:14:10,519 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:10,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:10,586 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2022-12-14 09:14:10,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:14:10,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 09:14:10,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:10,587 INFO L225 Difference]: With dead ends: 79 [2022-12-14 09:14:10,587 INFO L226 Difference]: Without dead ends: 65 [2022-12-14 09:14:10,587 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 [2022-12-14 09:14:10,588 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 21 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:10,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 62 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:14:10,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-12-14 09:14:10,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2022-12-14 09:14:10,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 52 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:10,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2022-12-14 09:14:10,594 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 24 [2022-12-14 09:14:10,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:10,594 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2022-12-14 09:14:10,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:10,595 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2022-12-14 09:14:10,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 09:14:10,595 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:10,595 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:10,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 09:14:10,596 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:14:10,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:10,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1362839196, now seen corresponding path program 1 times [2022-12-14 09:14:10,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:10,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288947354] [2022-12-14 09:14:10,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:10,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:10,643 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 09:14:10,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:10,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288947354] [2022-12-14 09:14:10,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288947354] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:10,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:14:10,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:14:10,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218739204] [2022-12-14 09:14:10,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:10,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:14:10,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:10,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:14:10,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:14:10,645 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:10,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:10,713 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2022-12-14 09:14:10,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:14:10,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-12-14 09:14:10,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:10,714 INFO L225 Difference]: With dead ends: 61 [2022-12-14 09:14:10,714 INFO L226 Difference]: Without dead ends: 59 [2022-12-14 09:14:10,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:14:10,714 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:10,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 56 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:14:10,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-12-14 09:14:10,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 56. [2022-12-14 09:14:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 48 states have (on average 1.3125) internal successors, (63), 55 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:10,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2022-12-14 09:14:10,721 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 25 [2022-12-14 09:14:10,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:10,721 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2022-12-14 09:14:10,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:10,721 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2022-12-14 09:14:10,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 09:14:10,722 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:10,722 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:10,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 09:14:10,722 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:14:10,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:10,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1688040433, now seen corresponding path program 1 times [2022-12-14 09:14:10,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:10,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21760543] [2022-12-14 09:14:10,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:10,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:10,828 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 09:14:10,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:10,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21760543] [2022-12-14 09:14:10,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21760543] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:14:10,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715709101] [2022-12-14 09:14:10,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:10,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:10,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:14:10,830 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:14:10,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 09:14:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:10,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 09:14:10,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:14:10,954 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 09:14:10,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:14:10,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715709101] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:10,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 09:14:10,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 6 [2022-12-14 09:14:10,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586567452] [2022-12-14 09:14:10,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:10,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:14:10,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:10,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:14:10,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:14:10,956 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:11,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:11,071 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2022-12-14 09:14:11,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:14:11,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-12-14 09:14:11,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:11,072 INFO L225 Difference]: With dead ends: 59 [2022-12-14 09:14:11,072 INFO L226 Difference]: Without dead ends: 58 [2022-12-14 09:14:11,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:14:11,072 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 15 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:11,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 75 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:14:11,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-12-14 09:14:11,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2022-12-14 09:14:11,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 48 states have (on average 1.2916666666666667) internal successors, (62), 54 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:11,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2022-12-14 09:14:11,083 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 26 [2022-12-14 09:14:11,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:11,083 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2022-12-14 09:14:11,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:11,083 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2022-12-14 09:14:11,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 09:14:11,084 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:11,084 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:11,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 09:14:11,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:11,284 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:14:11,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:11,285 INFO L85 PathProgramCache]: Analyzing trace with hash -789645763, now seen corresponding path program 1 times [2022-12-14 09:14:11,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:11,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891800477] [2022-12-14 09:14:11,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:11,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:11,417 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 09:14:11,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:11,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891800477] [2022-12-14 09:14:11,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891800477] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:14:11,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009895128] [2022-12-14 09:14:11,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:11,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:11,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:14:11,419 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:14:11,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 09:14:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:11,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 09:14:11,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:14:11,543 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 09:14:11,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:14:11,579 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 09:14:11,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009895128] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:14:11,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [164116873] [2022-12-14 09:14:11,581 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 09:14:11,581 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:14:11,582 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:14:11,582 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:14:11,582 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:14:11,615 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:14:11,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:14:11,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:14:11,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:11,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:11,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-12-14 09:14:11,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:11,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:11,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 09:14:11,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:11,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:11,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:14:11,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:11,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:11,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:14:11,776 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-12-14 09:14:11,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-12-14 09:14:11,799 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 09:14:11,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-12-14 09:14:11,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:11,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,087 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 09:14:12,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 233 treesize of output 219 [2022-12-14 09:14:12,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,142 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 09:14:12,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 237 treesize of output 222 [2022-12-14 09:14:12,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 217 [2022-12-14 09:14:12,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:12,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:12,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:12,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:12,261 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-12-14 09:14:12,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 373 treesize of output 401 [2022-12-14 09:14:12,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 229 [2022-12-14 09:14:12,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:12,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,319 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:12,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:12,358 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-12-14 09:14:12,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 360 treesize of output 384 [2022-12-14 09:14:12,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 70 [2022-12-14 09:14:12,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30 [2022-12-14 09:14:12,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-12-14 09:14:12,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,611 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 09:14:12,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 548 treesize of output 503 [2022-12-14 09:14:12,671 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 09:14:12,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 640 treesize of output 551 [2022-12-14 09:14:12,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 533 treesize of output 417 [2022-12-14 09:14:12,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 491 treesize of output 477 [2022-12-14 09:14:12,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:12,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:12,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:12,973 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:12,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-12-14 09:14:12,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:12,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:12,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:13,018 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-12-14 09:14:13,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-12-14 09:14:13,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 09:14:13,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:14:13,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:13,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 43 [2022-12-14 09:14:13,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:14:13,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-12-14 09:14:13,153 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-12-14 09:14:13,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 315 treesize of output 282 [2022-12-14 09:14:13,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 214 [2022-12-14 09:14:13,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:13,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:13,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:13,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:13,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:13,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:13,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:13,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:13,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:13,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:13,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:13,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,672 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:13,673 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:13,697 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 09:14:13,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 185 [2022-12-14 09:14:13,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:13,740 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:13,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 159 [2022-12-14 09:14:13,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-12-14 09:14:13,786 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 09:14:13,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-12-14 09:14:13,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:14:13,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:13,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-12-14 09:14:13,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:13,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-12-14 09:14:13,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-12-14 09:14:13,903 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:14:15,249 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2680#(and (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_dll_update_at_~head#1.base|) |ULTIMATE.start_dll_update_at_~head#1.offset|) |ULTIMATE.start_dll_update_at_~data#1|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= |ULTIMATE.start_dll_update_at_~index#1| 0) (< 2147483646 |ULTIMATE.start_main_#t~post13#1|) (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_#t~post13#1|) (= |#NULL.base| 0))' at error location [2022-12-14 09:14:15,250 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:14:15,250 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:14:15,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-12-14 09:14:15,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40340328] [2022-12-14 09:14:15,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:14:15,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 09:14:15,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:15,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 09:14:15,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=459, Unknown=3, NotChecked=0, Total=552 [2022-12-14 09:14:15,251 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 13 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 13 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:15,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:15,462 INFO L93 Difference]: Finished difference Result 84 states and 97 transitions. [2022-12-14 09:14:15,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 09:14:15,463 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 13 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-12-14 09:14:15,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:15,463 INFO L225 Difference]: With dead ends: 84 [2022-12-14 09:14:15,463 INFO L226 Difference]: Without dead ends: 83 [2022-12-14 09:14:15,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 60 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=151, Invalid=716, Unknown=3, NotChecked=0, Total=870 [2022-12-14 09:14:15,465 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 27 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:15,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 142 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:14:15,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-12-14 09:14:15,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 76. [2022-12-14 09:14:15,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 75 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:15,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 90 transitions. [2022-12-14 09:14:15,474 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 90 transitions. Word has length 27 [2022-12-14 09:14:15,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:15,474 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 90 transitions. [2022-12-14 09:14:15,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 13 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:15,474 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 90 transitions. [2022-12-14 09:14:15,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 09:14:15,474 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:15,474 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:15,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-14 09:14:15,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 09:14:15,676 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:14:15,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:15,677 INFO L85 PathProgramCache]: Analyzing trace with hash -16487112, now seen corresponding path program 1 times [2022-12-14 09:14:15,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:15,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919574174] [2022-12-14 09:14:15,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:15,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:15,799 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 09:14:15,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:15,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919574174] [2022-12-14 09:14:15,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919574174] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:14:15,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231784860] [2022-12-14 09:14:15,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:15,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:15,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:14:15,801 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:14:15,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 09:14:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:15,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 09:14:15,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:14:15,980 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 09:14:15,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:14:16,019 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 09:14:16,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231784860] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:14:16,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2026224166] [2022-12-14 09:14:16,021 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-12-14 09:14:16,021 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:14:16,021 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:14:16,021 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:14:16,021 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:14:16,049 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 09:14:16,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 09:14:16,078 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:14:16,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:14:16,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:14:16,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-12-14 09:14:16,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 09:14:16,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:14:16,207 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-12-14 09:14:16,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-12-14 09:14:16,234 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 09:14:16,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-12-14 09:14:16,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,490 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 09:14:16,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 233 treesize of output 219 [2022-12-14 09:14:16,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,548 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 09:14:16,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 237 treesize of output 222 [2022-12-14 09:14:16,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 217 [2022-12-14 09:14:16,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 217 [2022-12-14 09:14:16,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:16,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:16,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:16,681 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-12-14 09:14:16,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 373 treesize of output 401 [2022-12-14 09:14:16,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,696 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:16,696 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:16,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 438 treesize of output 468 [2022-12-14 09:14:16,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 54 [2022-12-14 09:14:16,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 09:14:16,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:16,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 17 [2022-12-14 09:14:16,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,795 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 09:14:16,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 365 treesize of output 320 [2022-12-14 09:14:16,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 462 treesize of output 401 [2022-12-14 09:14:16,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 346 [2022-12-14 09:14:16,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:16,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 304 [2022-12-14 09:14:17,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:17,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:17,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:17,181 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:17,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-12-14 09:14:17,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:17,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:17,221 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-12-14 09:14:17,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-12-14 09:14:17,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 09:14:17,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:14:17,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:17,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-12-14 09:14:17,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-12-14 09:14:17,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-12-14 09:14:17,348 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-12-14 09:14:17,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 169 treesize of output 144 [2022-12-14 09:14:17,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 92 [2022-12-14 09:14:17,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:17,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:17,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:17,489 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:17,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-12-14 09:14:17,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:17,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:17,529 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-12-14 09:14:17,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-12-14 09:14:17,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-12-14 09:14:17,590 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 09:14:17,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-12-14 09:14:17,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:14:17,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 43 [2022-12-14 09:14:17,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:14:17,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-12-14 09:14:17,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:17,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:17,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:17,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:17,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:17,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:17,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:17,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:17,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:17,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:17,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:18,184 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:14:20,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2026224166] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:20,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:14:20,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6, 5, 5] total 26 [2022-12-14 09:14:20,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408717104] [2022-12-14 09:14:20,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:20,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 09:14:20,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:20,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 09:14:20,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=506, Unknown=2, NotChecked=0, Total=650 [2022-12-14 09:14:20,333 INFO L87 Difference]: Start difference. First operand 76 states and 90 transitions. Second operand has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:21,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:21,633 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2022-12-14 09:14:21,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 09:14:21,633 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-14 09:14:21,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:21,634 INFO L225 Difference]: With dead ends: 101 [2022-12-14 09:14:21,634 INFO L226 Difference]: Without dead ends: 98 [2022-12-14 09:14:21,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 57 SyntacticMatches, 9 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=245, Invalid=809, Unknown=2, NotChecked=0, Total=1056 [2022-12-14 09:14:21,636 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 109 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:21,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 77 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 203 Invalid, 1 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:14:21,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-12-14 09:14:21,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 85. [2022-12-14 09:14:21,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 78 states have (on average 1.2820512820512822) internal successors, (100), 84 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:21,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 100 transitions. [2022-12-14 09:14:21,655 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 100 transitions. Word has length 28 [2022-12-14 09:14:21,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:21,655 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 100 transitions. [2022-12-14 09:14:21,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:21,656 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 100 transitions. [2022-12-14 09:14:21,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 09:14:21,656 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:21,656 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:21,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-14 09:14:21,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-14 09:14:21,857 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:14:21,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:21,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1359635679, now seen corresponding path program 1 times [2022-12-14 09:14:21,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:21,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492107066] [2022-12-14 09:14:21,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:21,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:21,984 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 09:14:21,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:21,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492107066] [2022-12-14 09:14:21,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492107066] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:14:21,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570488214] [2022-12-14 09:14:21,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:21,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:21,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:14:21,985 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:14:21,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 09:14:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:22,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 09:14:22,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:14:22,201 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 09:14:22,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:14:22,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570488214] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:22,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 09:14:22,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 13 [2022-12-14 09:14:22,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484554237] [2022-12-14 09:14:22,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:22,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:14:22,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:22,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:14:22,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-12-14 09:14:22,202 INFO L87 Difference]: Start difference. First operand 85 states and 100 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:22,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:22,277 INFO L93 Difference]: Finished difference Result 136 states and 158 transitions. [2022-12-14 09:14:22,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:14:22,277 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-12-14 09:14:22,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:22,277 INFO L225 Difference]: With dead ends: 136 [2022-12-14 09:14:22,277 INFO L226 Difference]: Without dead ends: 67 [2022-12-14 09:14:22,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-12-14 09:14:22,278 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 27 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:22,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 49 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:14:22,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-12-14 09:14:22,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2022-12-14 09:14:22,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 58 states have (on average 1.206896551724138) internal successors, (70), 62 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:22,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2022-12-14 09:14:22,287 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 29 [2022-12-14 09:14:22,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:22,287 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2022-12-14 09:14:22,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:22,287 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2022-12-14 09:14:22,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:14:22,287 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:22,287 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:22,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 09:14:22,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:22,489 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:14:22,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:22,490 INFO L85 PathProgramCache]: Analyzing trace with hash -800860831, now seen corresponding path program 1 times [2022-12-14 09:14:22,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:22,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209628736] [2022-12-14 09:14:22,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:22,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:22,593 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:14:22,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:22,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209628736] [2022-12-14 09:14:22,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209628736] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:14:22,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316355878] [2022-12-14 09:14:22,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:22,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:22,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:14:22,595 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:14:22,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 09:14:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:22,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:14:22,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:14:22,762 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 09:14:22,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:14:22,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316355878] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:22,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 09:14:22,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2022-12-14 09:14:22,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388222673] [2022-12-14 09:14:22,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:22,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:14:22,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:22,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:14:22,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:14:22,763 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:22,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:22,818 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2022-12-14 09:14:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:14:22,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-12-14 09:14:22,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:22,819 INFO L225 Difference]: With dead ends: 67 [2022-12-14 09:14:22,819 INFO L226 Difference]: Without dead ends: 66 [2022-12-14 09:14:22,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:14:22,820 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 31 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:22,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 34 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:14:22,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-12-14 09:14:22,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2022-12-14 09:14:22,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 58 states have (on average 1.1896551724137931) internal successors, (69), 62 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:22,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2022-12-14 09:14:22,841 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 30 [2022-12-14 09:14:22,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:22,841 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2022-12-14 09:14:22,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:22,842 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2022-12-14 09:14:22,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 09:14:22,842 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:22,842 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:22,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 09:14:23,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-14 09:14:23,043 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:14:23,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:23,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1541158426, now seen corresponding path program 1 times [2022-12-14 09:14:23,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:23,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122973018] [2022-12-14 09:14:23,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:23,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:23,078 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 09:14:23,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:23,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122973018] [2022-12-14 09:14:23,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122973018] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:23,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:14:23,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:14:23,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680709848] [2022-12-14 09:14:23,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:23,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:14:23,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:23,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:14:23,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:14:23,079 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:23,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:23,121 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-12-14 09:14:23,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:14:23,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-12-14 09:14:23,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:23,122 INFO L225 Difference]: With dead ends: 63 [2022-12-14 09:14:23,122 INFO L226 Difference]: Without dead ends: 62 [2022-12-14 09:14:23,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:14:23,123 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:23,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 40 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:14:23,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-14 09:14:23,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-12-14 09:14:23,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 61 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:23,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2022-12-14 09:14:23,138 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 31 [2022-12-14 09:14:23,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:23,138 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2022-12-14 09:14:23,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:23,138 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2022-12-14 09:14:23,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 09:14:23,139 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:23,139 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:23,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 09:14:23,139 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:14:23,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:23,139 INFO L85 PathProgramCache]: Analyzing trace with hash -531270813, now seen corresponding path program 1 times [2022-12-14 09:14:23,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:23,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587955723] [2022-12-14 09:14:23,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:23,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:23,260 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 09:14:23,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:23,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587955723] [2022-12-14 09:14:23,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587955723] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:14:23,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922177118] [2022-12-14 09:14:23,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:23,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:23,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:14:23,262 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:14:23,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 09:14:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:23,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 09:14:23,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:14:23,451 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:14:23,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:14:23,491 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:14:23,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922177118] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:14:23,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [247868805] [2022-12-14 09:14:23,494 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-12-14 09:14:23,494 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:14:23,494 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:14:23,494 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:14:23,494 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:14:23,526 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:14:23,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:14:23,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:14:23,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:23,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:23,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:14:23,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:23,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:23,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-12-14 09:14:23,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:23,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:23,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 09:14:23,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:23,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:23,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:14:23,677 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-12-14 09:14:23,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-12-14 09:14:23,704 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 09:14:23,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-12-14 09:14:23,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:23,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:23,994 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 09:14:23,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 233 treesize of output 219 [2022-12-14 09:14:24,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,059 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 09:14:24,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 237 treesize of output 222 [2022-12-14 09:14:24,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 217 [2022-12-14 09:14:24,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:24,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:24,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:24,118 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:24,194 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-12-14 09:14:24,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 373 treesize of output 401 [2022-12-14 09:14:24,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 229 [2022-12-14 09:14:24,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:24,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:24,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:24,269 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-12-14 09:14:24,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 360 treesize of output 384 [2022-12-14 09:14:24,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,302 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 09:14:24,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 365 treesize of output 320 [2022-12-14 09:14:24,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 54 [2022-12-14 09:14:24,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:24,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 17 [2022-12-14 09:14:24,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 09:14:24,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 381 treesize of output 336 [2022-12-14 09:14:24,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 09:14:24,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 304 [2022-12-14 09:14:24,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:24,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:24,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:24,723 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:24,750 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 09:14:24,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-12-14 09:14:24,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:24,798 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:24,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 164 [2022-12-14 09:14:24,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-12-14 09:14:24,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:24,867 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 09:14:24,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 101 [2022-12-14 09:14:24,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-12-14 09:14:24,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 53 [2022-12-14 09:14:24,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:24,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-12-14 09:14:24,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-12-14 09:14:25,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:25,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:25,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:25,088 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:25,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-12-14 09:14:25,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:25,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:25,131 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-12-14 09:14:25,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-12-14 09:14:25,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-12-14 09:14:25,182 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 09:14:25,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-12-14 09:14:25,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:14:25,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 43 [2022-12-14 09:14:25,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-12-14 09:14:25,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:14:25,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:25,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:25,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:25,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:25,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:25,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:25,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:25,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:25,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:25,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:25,761 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:14:28,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [247868805] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:28,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:14:28,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6, 5, 5] total 23 [2022-12-14 09:14:28,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957074580] [2022-12-14 09:14:28,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:28,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 09:14:28,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:28,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 09:14:28,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=426, Unknown=6, NotChecked=0, Total=552 [2022-12-14 09:14:28,235 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 14 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 13 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:28,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:28,784 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2022-12-14 09:14:28,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 09:14:28,785 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 13 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-12-14 09:14:28,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:28,785 INFO L225 Difference]: With dead ends: 74 [2022-12-14 09:14:28,785 INFO L226 Difference]: Without dead ends: 73 [2022-12-14 09:14:28,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 68 SyntacticMatches, 11 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=129, Invalid=465, Unknown=6, NotChecked=0, Total=600 [2022-12-14 09:14:28,785 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 49 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:28,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 43 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 200 Invalid, 1 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:14:28,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-12-14 09:14:28,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 64. [2022-12-14 09:14:28,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 60 states have (on average 1.1666666666666667) internal successors, (70), 63 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:28,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2022-12-14 09:14:28,795 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 32 [2022-12-14 09:14:28,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:28,795 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2022-12-14 09:14:28,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 13 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:28,795 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2022-12-14 09:14:28,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 09:14:28,795 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:28,796 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:28,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-14 09:14:28,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:28,997 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:14:28,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:28,998 INFO L85 PathProgramCache]: Analyzing trace with hash -134116032, now seen corresponding path program 1 times [2022-12-14 09:14:28,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:28,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969406654] [2022-12-14 09:14:28,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:28,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:14:29,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:29,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969406654] [2022-12-14 09:14:29,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969406654] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:14:29,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944345789] [2022-12-14 09:14:29,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:29,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:29,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:14:29,090 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:14:29,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 09:14:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:29,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 09:14:29,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:14:29,295 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 09:14:29,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:14:29,331 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 09:14:29,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944345789] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:14:29,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2110497640] [2022-12-14 09:14:29,333 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-12-14 09:14:29,333 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:14:29,334 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:14:29,334 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:14:29,334 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:14:29,367 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 09:14:29,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 09:14:29,391 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:14:29,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:14:29,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:29,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:29,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:14:29,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:29,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:29,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:14:29,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:29,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:29,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-12-14 09:14:29,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:29,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:29,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 09:14:29,521 INFO L321 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2022-12-14 09:14:29,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 227 treesize of output 235 [2022-12-14 09:14:29,561 INFO L321 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2022-12-14 09:14:29,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 230 treesize of output 245 [2022-12-14 09:14:29,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:29,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:29,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:29,788 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:29,922 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 09:14:29,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 241 treesize of output 227 [2022-12-14 09:14:29,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:29,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:29,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:29,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:29,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:29,997 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 09:14:29,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 245 treesize of output 230 [2022-12-14 09:14:30,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 225 [2022-12-14 09:14:30,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,034 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:30,035 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:30,119 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-12-14 09:14:30,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 381 treesize of output 404 [2022-12-14 09:14:30,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 312 treesize of output 303 [2022-12-14 09:14:30,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:30,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 446 treesize of output 476 [2022-12-14 09:14:30,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:30,219 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-12-14 09:14:30,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 395 treesize of output 350 [2022-12-14 09:14:30,305 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-12-14 09:14:30,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 326 treesize of output 257 [2022-12-14 09:14:30,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 190 [2022-12-14 09:14:30,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 37 [2022-12-14 09:14:30,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 657 treesize of output 604 [2022-12-14 09:14:30,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 09:14:30,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 584 treesize of output 554 [2022-12-14 09:14:30,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:30,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:30,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:30,761 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:30,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 189 [2022-12-14 09:14:30,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:30,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:30,799 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-12-14 09:14:30,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 173 [2022-12-14 09:14:30,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 09:14:30,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:14:30,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:30,894 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 09:14:30,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 101 [2022-12-14 09:14:30,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-12-14 09:14:30,919 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-12-14 09:14:30,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 194 treesize of output 145 [2022-12-14 09:14:30,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-12-14 09:14:30,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:30,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 91 [2022-12-14 09:14:31,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:31,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:31,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:31,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:31,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:31,073 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:31,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 189 [2022-12-14 09:14:31,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:31,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:31,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:31,096 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:31,113 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-12-14 09:14:31,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-12-14 09:14:31,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:31,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:31,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-12-14 09:14:31,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:31,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:31,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-12-14 09:14:31,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:31,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:31,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-12-14 09:14:31,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:14:31,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 45 [2022-12-14 09:14:31,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:31,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:31,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-12-14 09:14:31,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:14:31,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:31,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:31,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:31,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:31,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:31,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:31,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:31,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:31,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:32,076 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:14:34,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2110497640] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:34,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:14:34,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [4, 5, 5] total 27 [2022-12-14 09:14:34,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779578194] [2022-12-14 09:14:34,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:34,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 09:14:34,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:34,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 09:14:34,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=590, Unknown=2, NotChecked=0, Total=702 [2022-12-14 09:14:34,513 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand has 17 states, 16 states have (on average 1.5625) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:36,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:36,580 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2022-12-14 09:14:36,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 09:14:36,581 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.5625) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-12-14 09:14:36,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:36,582 INFO L225 Difference]: With dead ends: 77 [2022-12-14 09:14:36,582 INFO L226 Difference]: Without dead ends: 48 [2022-12-14 09:14:36,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 76 SyntacticMatches, 7 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=235, Invalid=1169, Unknown=2, NotChecked=0, Total=1406 [2022-12-14 09:14:36,582 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 48 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:36,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 48 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 256 Invalid, 1 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 09:14:36,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-14 09:14:36,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-12-14 09:14:36,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 47 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:36,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2022-12-14 09:14:36,589 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 35 [2022-12-14 09:14:36,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:36,589 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2022-12-14 09:14:36,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.5625) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:36,589 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2022-12-14 09:14:36,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 09:14:36,590 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:36,590 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:36,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-14 09:14:36,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:36,791 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:14:36,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:36,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1830560332, now seen corresponding path program 1 times [2022-12-14 09:14:36,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:36,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321639528] [2022-12-14 09:14:36,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:36,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:36,909 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 09:14:36,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:36,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321639528] [2022-12-14 09:14:36,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321639528] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:14:36,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017236485] [2022-12-14 09:14:36,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:36,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:36,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:14:36,911 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:14:36,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 09:14:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:37,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 09:14:37,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:14:37,134 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 09:14:37,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:14:37,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017236485] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:37,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 09:14:37,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-12-14 09:14:37,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599565120] [2022-12-14 09:14:37,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:37,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:14:37,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:37,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:14:37,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-14 09:14:37,136 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:37,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:37,219 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2022-12-14 09:14:37,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:14:37,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-12-14 09:14:37,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:37,220 INFO L225 Difference]: With dead ends: 48 [2022-12-14 09:14:37,220 INFO L226 Difference]: Without dead ends: 46 [2022-12-14 09:14:37,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:14:37,220 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 23 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:37,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 35 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:14:37,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-14 09:14:37,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-14 09:14:37,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 45 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:37,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2022-12-14 09:14:37,227 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 37 [2022-12-14 09:14:37,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:37,227 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2022-12-14 09:14:37,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:37,227 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2022-12-14 09:14:37,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-14 09:14:37,227 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:37,227 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:37,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-14 09:14:37,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:37,429 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:14:37,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:37,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1647295009, now seen corresponding path program 1 times [2022-12-14 09:14:37,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:37,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733997495] [2022-12-14 09:14:37,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:37,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:37,547 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 09:14:37,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:37,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733997495] [2022-12-14 09:14:37,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733997495] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:14:37,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586315277] [2022-12-14 09:14:37,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:37,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:37,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:14:37,548 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:14:37,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-14 09:14:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:37,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 09:14:37,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:14:37,737 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 09:14:37,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:14:37,769 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 09:14:37,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586315277] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:14:37,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1488817300] [2022-12-14 09:14:37,771 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-12-14 09:14:37,771 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:14:37,772 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:14:37,772 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:14:37,772 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:14:37,807 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 09:14:37,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 09:14:37,829 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:14:37,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:14:37,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:37,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:37,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:14:37,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:37,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:37,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-12-14 09:14:37,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:37,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:37,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 09:14:37,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:37,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:37,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:14:37,964 INFO L321 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2022-12-14 09:14:37,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 227 treesize of output 235 [2022-12-14 09:14:38,013 INFO L321 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2022-12-14 09:14:38,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 230 treesize of output 245 [2022-12-14 09:14:38,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:38,282 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 09:14:38,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 241 treesize of output 227 [2022-12-14 09:14:38,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:38,349 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 09:14:38,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 245 treesize of output 230 [2022-12-14 09:14:38,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 225 [2022-12-14 09:14:38,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 225 [2022-12-14 09:14:38,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:38,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:38,463 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-12-14 09:14:38,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 381 treesize of output 399 [2022-12-14 09:14:38,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,478 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:38,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 446 treesize of output 481 [2022-12-14 09:14:38,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 120 [2022-12-14 09:14:38,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 84 [2022-12-14 09:14:38,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-12-14 09:14:38,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 642 treesize of output 597 [2022-12-14 09:14:38,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 577 treesize of output 557 [2022-12-14 09:14:38,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 09:14:38,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:38,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:38,785 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-12-14 09:14:38,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 589 treesize of output 544 [2022-12-14 09:14:39,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:39,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:39,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:39,059 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:39,099 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 09:14:39,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-12-14 09:14:39,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,120 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:39,152 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:39,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 164 [2022-12-14 09:14:39,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 09:14:39,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:14:39,207 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 09:14:39,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-12-14 09:14:39,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:14:39,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:39,282 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-12-14 09:14:39,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 252 treesize of output 197 [2022-12-14 09:14:39,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 144 [2022-12-14 09:14:39,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 3 [2022-12-14 09:14:39,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:39,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:39,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,384 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:39,384 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:39,413 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 09:14:39,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 185 [2022-12-14 09:14:39,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:39,466 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:39,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 164 [2022-12-14 09:14:39,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 09:14:39,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:14:39,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:39,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-12-14 09:14:39,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-12-14 09:14:39,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-12-14 09:14:39,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 53 [2022-12-14 09:14:39,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-12-14 09:14:39,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:39,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-12-14 09:14:39,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:39,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:39,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:39,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:39,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:39,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:40,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:40,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:40,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:40,322 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:14:43,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1488817300] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:43,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:14:43,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6, 6, 6] total 27 [2022-12-14 09:14:43,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180570332] [2022-12-14 09:14:43,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:43,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 09:14:43,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:43,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 09:14:43,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=618, Unknown=2, NotChecked=0, Total=756 [2022-12-14 09:14:43,387 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand has 16 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:44,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:44,645 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2022-12-14 09:14:44,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 09:14:44,645 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-12-14 09:14:44,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:44,646 INFO L225 Difference]: With dead ends: 65 [2022-12-14 09:14:44,646 INFO L226 Difference]: Without dead ends: 63 [2022-12-14 09:14:44,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 90 SyntacticMatches, 12 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=259, Invalid=1071, Unknown=2, NotChecked=0, Total=1332 [2022-12-14 09:14:44,647 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 69 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:44,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 31 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 217 Invalid, 1 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:14:44,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-12-14 09:14:44,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2022-12-14 09:14:44,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 50 states have (on average 1.12) internal successors, (56), 51 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:44,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2022-12-14 09:14:44,663 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 41 [2022-12-14 09:14:44,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:44,663 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2022-12-14 09:14:44,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:44,664 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2022-12-14 09:14:44,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 09:14:44,664 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:44,664 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:14:44,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-14 09:14:44,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:44,866 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 09:14:44,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:44,867 INFO L85 PathProgramCache]: Analyzing trace with hash -269156888, now seen corresponding path program 1 times [2022-12-14 09:14:44,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:44,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442189960] [2022-12-14 09:14:44,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:44,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:45,006 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 09:14:45,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:45,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442189960] [2022-12-14 09:14:45,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442189960] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:14:45,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628503728] [2022-12-14 09:14:45,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:45,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:45,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:14:45,007 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:14:45,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-14 09:14:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:45,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 09:14:45,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:14:45,184 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 09:14:45,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:14:45,210 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 09:14:45,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628503728] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:14:45,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2130714341] [2022-12-14 09:14:45,211 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-12-14 09:14:45,211 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:14:45,211 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:14:45,211 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:14:45,211 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:14:45,240 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:14:45,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:14:45,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:14:45,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:14:45,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 09:14:45,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-12-14 09:14:45,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 09:14:45,391 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-12-14 09:14:45,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-12-14 09:14:45,418 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 09:14:45,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-12-14 09:14:45,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,676 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 09:14:45,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 233 treesize of output 219 [2022-12-14 09:14:45,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,725 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 09:14:45,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 237 treesize of output 222 [2022-12-14 09:14:45,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 217 [2022-12-14 09:14:45,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 217 [2022-12-14 09:14:45,780 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:45,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:45,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:45,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:45,822 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-12-14 09:14:45,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 373 treesize of output 401 [2022-12-14 09:14:45,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:45,836 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:45,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:45,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:45,871 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-12-14 09:14:45,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 360 treesize of output 389 [2022-12-14 09:14:45,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 54 [2022-12-14 09:14:45,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 09:14:46,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:46,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 17 [2022-12-14 09:14:46,066 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-12-14 09:14:46,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 61 [2022-12-14 09:14:46,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2022-12-14 09:14:46,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-14 09:14:46,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,164 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 09:14:46,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 563 treesize of output 518 [2022-12-14 09:14:46,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:46,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:46,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:46,510 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:46,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-12-14 09:14:46,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,529 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:46,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:46,554 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-12-14 09:14:46,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-12-14 09:14:46,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-12-14 09:14:46,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:46,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-12-14 09:14:46,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-12-14 09:14:46,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 09:14:46,701 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-12-14 09:14:46,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 169 treesize of output 144 [2022-12-14 09:14:46,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 92 [2022-12-14 09:14:46,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:14:46,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:14:46,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:46,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:46,868 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 09:14:46,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-12-14 09:14:46,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,898 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:46,923 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 09:14:46,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 164 [2022-12-14 09:14:46,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:46,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-12-14 09:14:47,002 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 09:14:47,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-12-14 09:14:47,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:47,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:47,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:14:47,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:47,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 09:14:47,062 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-12-14 09:14:47,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 252 treesize of output 197 [2022-12-14 09:14:47,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:47,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:47,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 144 [2022-12-14 09:14:47,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 3 [2022-12-14 09:14:47,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:47,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:47,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:47,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:47,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:47,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:47,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:47,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:14:47,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:14:47,869 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:14:49,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2130714341] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:49,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:14:49,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [8, 8, 8] total 25 [2022-12-14 09:14:49,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16995387] [2022-12-14 09:14:49,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:49,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 09:14:49,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:49,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 09:14:49,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=503, Unknown=2, NotChecked=0, Total=600 [2022-12-14 09:14:49,737 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand has 17 states, 16 states have (on average 1.75) internal successors, (28), 16 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:51,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:51,061 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2022-12-14 09:14:51,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 09:14:51,061 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.75) internal successors, (28), 16 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-12-14 09:14:51,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:51,061 INFO L225 Difference]: With dead ends: 52 [2022-12-14 09:14:51,061 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 09:14:51,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 98 SyntacticMatches, 18 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=199, Invalid=921, Unknown=2, NotChecked=0, Total=1122 [2022-12-14 09:14:51,062 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 41 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:51,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 6 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 256 Invalid, 1 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:14:51,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 09:14:51,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 09:14:51,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:51,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 09:14:51,062 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2022-12-14 09:14:51,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:51,063 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 09:14:51,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.75) internal successors, (28), 16 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:14:51,063 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 09:14:51,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 09:14:51,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2022-12-14 09:14:51,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2022-12-14 09:14:51,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2022-12-14 09:14:51,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2022-12-14 09:14:51,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2022-12-14 09:14:51,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2022-12-14 09:14:51,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2022-12-14 09:14:51,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2022-12-14 09:14:51,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2022-12-14 09:14:51,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2022-12-14 09:14:51,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2022-12-14 09:14:51,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2022-12-14 09:14:51,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2022-12-14 09:14:51,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2022-12-14 09:14:51,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-12-14 09:14:51,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:51,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 09:15:00,371 INFO L902 garLoopResultBuilder]: At program point L573(line 573) the Hoare annotation is: true [2022-12-14 09:15:00,371 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 572 574) the Hoare annotation is: true [2022-12-14 09:15:00,372 INFO L899 garLoopResultBuilder]: For program point myexitEXIT(lines 572 574) no Hoare annotation was computed. [2022-12-14 09:15:00,372 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 630) no Hoare annotation was computed. [2022-12-14 09:15:00,372 INFO L899 garLoopResultBuilder]: For program point L630(line 630) no Hoare annotation was computed. [2022-12-14 09:15:00,372 INFO L899 garLoopResultBuilder]: For program point L630-1(line 630) no Hoare annotation was computed. [2022-12-14 09:15:00,372 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 591) no Hoare annotation was computed. [2022-12-14 09:15:00,372 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 589 591) no Hoare annotation was computed. [2022-12-14 09:15:00,372 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 624 643) the Hoare annotation is: true [2022-12-14 09:15:00,372 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 629) no Hoare annotation was computed. [2022-12-14 09:15:00,372 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 599) no Hoare annotation was computed. [2022-12-14 09:15:00,372 INFO L902 garLoopResultBuilder]: At program point L590(line 590) the Hoare annotation is: true [2022-12-14 09:15:00,372 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 634) no Hoare annotation was computed. [2022-12-14 09:15:00,372 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 599) no Hoare annotation was computed. [2022-12-14 09:15:00,372 INFO L899 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2022-12-14 09:15:00,373 INFO L899 garLoopResultBuilder]: For program point L599-1(line 599) no Hoare annotation was computed. [2022-12-14 09:15:00,373 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 634) no Hoare annotation was computed. [2022-12-14 09:15:00,373 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 09:15:00,373 INFO L899 garLoopResultBuilder]: For program point L633-3(line 633) no Hoare annotation was computed. [2022-12-14 09:15:00,373 INFO L899 garLoopResultBuilder]: For program point L633-4(line 633) no Hoare annotation was computed. [2022-12-14 09:15:00,373 INFO L895 garLoopResultBuilder]: At program point L633-5(lines 633 638) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|)) (.cse1 (let ((.cse33 (= |#NULL.offset| 0))) (or (and .cse33 (= |ULTIMATE.start_dll_create_~head~0#1.base| 0)) (and (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) .cse33)))) (.cse2 (<= 0 |ULTIMATE.start_main_~s~0#1.offset|)) (.cse28 (<= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| 0)) (.cse3 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse4 (< |ULTIMATE.start_main_~i~0#1| 2147483649)) (.cse5 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse29 (<= 1 |ULTIMATE.start_main_~i~0#1|)) (.cse6 (<= |ULTIMATE.start_dll_create_#res#1.offset| 0)) (.cse7 (<= 0 |ULTIMATE.start_dll_update_at_#in~index#1|)) (.cse8 (<= |ULTIMATE.start_dll_update_at_~index#1| 1)) (.cse9 (<= |ULTIMATE.start_dll_create_~len#1| 2)) (.cse10 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse11 (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0)) (.cse12 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse30 (<= 0 |ULTIMATE.start_dll_get_data_at_#in~head#1.offset|)) (.cse13 (<= 0 |ULTIMATE.start_dll_create_~len#1|)) (.cse14 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse31 (<= 0 |ULTIMATE.start_dll_get_data_at_#in~index#1|)) (.cse15 (<= |ULTIMATE.start_dll_create_~len#1| 0)) (.cse16 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse17 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse18 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse19 (<= 2 |ULTIMATE.start_dll_update_at_~data#1|)) (.cse20 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse21 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse32 (<= 2 |ULTIMATE.start_main_~expected~0#1|)) (.cse22 (<= 2 |ULTIMATE.start_main_~new_data~0#1|)) (.cse23 (<= 2 |ULTIMATE.start_dll_update_at_#in~data#1|)) (.cse24 (<= 0 |#StackHeapBarrier|)) (.cse25 (<= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse26 (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|)) (.cse27 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~i~0#1| 0) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27) (and .cse0 .cse1 .cse2 .cse28 .cse3 (<= |ULTIMATE.start_main_~expected~0#1| 4) .cse4 .cse5 .cse29 .cse6 (<= |ULTIMATE.start_dll_get_data_at_#in~index#1| 2) .cse7 .cse8 .cse9 (<= |ULTIMATE.start_main_~i~0#1| 2) .cse10 (<= |ULTIMATE.start_dll_get_data_at_~index#1| 2) .cse11 .cse12 .cse30 .cse13 .cse14 .cse31 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse32 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27) (and .cse0 (<= 0 |ULTIMATE.start_dll_update_at_~index#1|) .cse1 .cse2 .cse28 .cse3 .cse4 .cse5 .cse29 (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse6 .cse7 .cse8 .cse9 (<= 0 |ULTIMATE.start_dll_get_data_at_~index#1|) (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0) .cse10 (<= 0 |ULTIMATE.start_dll_update_at_~head#1.offset|) .cse11 .cse12 .cse30 .cse13 (<= 2 |ULTIMATE.start_dll_get_data_at_#res#1|) (<= |ULTIMATE.start_dll_update_at_~head#1.offset| 0) .cse14 .cse31 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse32 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27))) [2022-12-14 09:15:00,373 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 613) no Hoare annotation was computed. [2022-12-14 09:15:00,373 INFO L899 garLoopResultBuilder]: For program point L634(line 634) no Hoare annotation was computed. [2022-12-14 09:15:00,373 INFO L899 garLoopResultBuilder]: For program point L634-1(line 634) no Hoare annotation was computed. [2022-12-14 09:15:00,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 613) no Hoare annotation was computed. [2022-12-14 09:15:00,374 INFO L895 garLoopResultBuilder]: At program point L618-2(lines 618 621) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|)) (.cse1 (<= 0 |ULTIMATE.start_main_~s~0#1.offset|)) (.cse2 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse3 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse4 (<= |ULTIMATE.start_dll_create_#res#1.offset| 0)) (.cse5 (<= 0 |ULTIMATE.start_dll_update_at_#in~index#1|)) (.cse6 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse7 (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0)) (.cse8 (<= 0 |ULTIMATE.start_dll_create_~len#1|)) (.cse9 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse10 (<= |ULTIMATE.start_dll_create_~len#1| 0)) (.cse11 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse12 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse13 (= |#NULL.offset| 0)) (.cse14 (let ((.cse25 (= |ULTIMATE.start_main_~data~0#1| 1))) (or (and (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) .cse25) (and .cse25 (= |ULTIMATE.start_dll_create_~head~0#1.base| 0))))) (.cse15 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse16 (<= 2 |ULTIMATE.start_dll_update_at_~data#1|)) (.cse17 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse18 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse19 (<= 2 |ULTIMATE.start_main_~new_data~0#1|)) (.cse20 (<= 2 |ULTIMATE.start_dll_update_at_#in~data#1|)) (.cse21 (<= 0 |#StackHeapBarrier|)) (.cse22 (<= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse23 (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|)) (.cse24 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse4 .cse5 (<= |ULTIMATE.start_dll_update_at_~index#1| 1) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~len~0#1|) .cse21 .cse22 .cse23 .cse24) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~i~0#1| 0) .cse3 .cse4 .cse5 .cse6 (<= 0 |ULTIMATE.start_dll_update_at_~head#1.offset|) .cse7 .cse8 (<= |ULTIMATE.start_dll_update_at_~head#1.offset| 0) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 (= |ULTIMATE.start_dll_update_at_~index#1| 0) .cse24))) [2022-12-14 09:15:00,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 620) no Hoare annotation was computed. [2022-12-14 09:15:00,374 INFO L895 garLoopResultBuilder]: At program point L635(lines 635 637) the Hoare annotation is: (let ((.cse2 (<= 0 |ULTIMATE.start_main_~s~0#1.offset|)) (.cse3 (<= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| 0)) (.cse5 (<= |ULTIMATE.start_main_~expected~0#1| 4)) (.cse8 (<= |ULTIMATE.start_dll_get_data_at_#in~index#1| 2)) (.cse0 (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|)) (.cse1 (let ((.cse39 (= |#NULL.offset| 0))) (or (and .cse39 (= |ULTIMATE.start_dll_create_~head~0#1.base| 0)) (and (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) .cse39)))) (.cse4 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse6 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse7 (<= |ULTIMATE.start_dll_create_#res#1.offset| 0)) (.cse9 (= (select (select |#memory_int| |ULTIMATE.start_dll_get_data_at_~head#1.base|) |ULTIMATE.start_dll_get_data_at_~head#1.offset|) |ULTIMATE.start_dll_get_data_at_#res#1|)) (.cse10 (<= 0 |ULTIMATE.start_dll_update_at_#in~index#1|)) (.cse11 (<= |ULTIMATE.start_dll_update_at_~index#1| 1)) (.cse12 (<= |ULTIMATE.start_dll_create_~len#1| 2)) (.cse13 (<= 0 (+ |ULTIMATE.start_main_#t~ret15#1| 2147483648))) (.cse14 (= |ULTIMATE.start_dll_get_data_at_#res#1| |ULTIMATE.start_main_#t~ret15#1|)) (.cse15 (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0)) (.cse16 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse17 (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0)) (.cse18 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse19 (<= 0 |ULTIMATE.start_dll_get_data_at_#in~head#1.offset|)) (.cse20 (<= |ULTIMATE.start_main_#t~ret15#1| 2147483647)) (.cse21 (<= 0 |ULTIMATE.start_dll_create_~len#1|)) (.cse22 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse23 (<= 0 |ULTIMATE.start_dll_get_data_at_#in~index#1|)) (.cse24 (<= |ULTIMATE.start_dll_create_~len#1| 0)) (.cse25 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse26 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse27 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse28 (<= 2 |ULTIMATE.start_dll_update_at_~data#1|)) (.cse29 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse30 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse31 (<= 2 |ULTIMATE.start_main_~expected~0#1|)) (.cse32 (<= 2 |ULTIMATE.start_main_~new_data~0#1|)) (.cse33 (<= |ULTIMATE.start_main_~i~0#1| 1)) (.cse34 (<= 2 |ULTIMATE.start_dll_update_at_#in~data#1|)) (.cse35 (<= 0 |#StackHeapBarrier|)) (.cse36 (<= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse37 (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|)) (.cse38 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38) (and .cse0 (<= 0 |ULTIMATE.start_dll_update_at_~index#1|) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_dll_update_at_~head#1.offset|) .cse17 .cse18 .cse19 .cse20 .cse21 (<= |ULTIMATE.start_dll_update_at_~head#1.offset| 0) .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38) (and .cse0 .cse1 .cse4 .cse6 .cse7 (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) .cse9 (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) .cse10 (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) .cse11 .cse12 (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) .cse13 .cse14 .cse15 .cse16 (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) .cse38))) [2022-12-14 09:15:00,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 633) no Hoare annotation was computed. [2022-12-14 09:15:00,375 INFO L895 garLoopResultBuilder]: At program point L611-2(lines 611 614) the Hoare annotation is: (let ((.cse1 (<= 0 |ULTIMATE.start_main_~s~0#1.offset|)) (.cse2 (<= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| 0)) (.cse4 (<= |ULTIMATE.start_main_~expected~0#1| 4)) (.cse8 (<= |ULTIMATE.start_dll_get_data_at_#in~index#1| 2)) (.cse12 (<= |ULTIMATE.start_dll_get_data_at_~index#1| 2)) (.cse18 (<= 0 |ULTIMATE.start_dll_get_data_at_#in~index#1|)) (.cse0 (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|)) (.cse3 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse5 (or (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= |ULTIMATE.start_dll_create_~head~0#1.base| 0))) (.cse6 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse7 (<= |ULTIMATE.start_dll_create_#res#1.offset| 0)) (.cse9 (<= 0 |ULTIMATE.start_dll_update_at_#in~index#1|)) (.cse10 (<= |ULTIMATE.start_dll_update_at_~index#1| 1)) (.cse11 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse13 (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0)) (.cse14 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse15 (<= 0 |ULTIMATE.start_dll_get_data_at_#in~head#1.offset|)) (.cse16 (<= 0 |ULTIMATE.start_dll_create_~len#1|)) (.cse17 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse19 (<= |ULTIMATE.start_dll_create_~len#1| 0)) (.cse20 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse21 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse22 (= |#NULL.offset| 0)) (.cse23 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse24 (<= 2 |ULTIMATE.start_dll_update_at_~data#1|)) (.cse25 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse26 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse27 (<= 2 |ULTIMATE.start_main_~expected~0#1|)) (.cse28 (<= 2 |ULTIMATE.start_main_~new_data~0#1|)) (.cse29 (<= |ULTIMATE.start_main_~i~0#1| 1)) (.cse30 (<= 2 |ULTIMATE.start_dll_update_at_#in~data#1|)) (.cse31 (<= 0 |#StackHeapBarrier|)) (.cse32 (<= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse33 (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|)) (.cse34 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 .cse34) (and .cse0 (<= 0 |ULTIMATE.start_dll_update_at_~index#1|) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_dll_update_at_~head#1.offset|) .cse13 .cse14 .cse15 .cse16 (<= |ULTIMATE.start_dll_update_at_~head#1.offset| 0) .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 .cse34) (and .cse0 .cse3 .cse5 .cse6 .cse7 (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) .cse9 (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) .cse10 (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) .cse11 (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) .cse13 .cse14 .cse15 .cse16 .cse17 (= |ULTIMATE.start_dll_get_data_at_~index#1| 0) .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) .cse34))) [2022-12-14 09:15:00,375 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 09:15:00,375 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 620) no Hoare annotation was computed. [2022-12-14 09:15:00,375 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 633) no Hoare annotation was computed. [2022-12-14 09:15:00,375 INFO L899 garLoopResultBuilder]: For program point L620(line 620) no Hoare annotation was computed. [2022-12-14 09:15:00,375 INFO L899 garLoopResultBuilder]: For program point L620-1(line 620) no Hoare annotation was computed. [2022-12-14 09:15:00,375 INFO L895 garLoopResultBuilder]: At program point L587-2(lines 587 600) the Hoare annotation is: (and (let ((.cse0 (= |#NULL.offset| 0))) (or (and .cse0 (= |ULTIMATE.start_dll_create_~head~0#1.base| 0)) (and (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) .cse0))) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_~len#1| 2) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-12-14 09:15:00,375 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 630) no Hoare annotation was computed. [2022-12-14 09:15:00,375 INFO L902 garLoopResultBuilder]: At program point L604-2(lines 604 608) the Hoare annotation is: true [2022-12-14 09:15:00,375 INFO L899 garLoopResultBuilder]: For program point L629-3(line 629) no Hoare annotation was computed. [2022-12-14 09:15:00,376 INFO L899 garLoopResultBuilder]: For program point L629-4(line 629) no Hoare annotation was computed. [2022-12-14 09:15:00,376 INFO L895 garLoopResultBuilder]: At program point L629-5(lines 629 632) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|)) (.cse1 (<= 0 |ULTIMATE.start_main_~s~0#1.offset|)) (.cse2 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse3 (or (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= |ULTIMATE.start_dll_create_~head~0#1.base| 0))) (.cse4 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse5 (<= |ULTIMATE.start_dll_create_#res#1.offset| 0)) (.cse6 (<= 0 |ULTIMATE.start_dll_update_at_#in~index#1|)) (.cse7 (<= |ULTIMATE.start_dll_update_at_~index#1| 1)) (.cse8 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse9 (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0)) (.cse10 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse11 (<= 0 |ULTIMATE.start_dll_create_~len#1|)) (.cse12 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse13 (<= |ULTIMATE.start_dll_create_~len#1| 0)) (.cse14 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse15 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse16 (= |#NULL.offset| 0)) (.cse17 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse18 (<= 2 |ULTIMATE.start_dll_update_at_~data#1|)) (.cse19 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse20 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse21 (<= 2 |ULTIMATE.start_main_~new_data~0#1|)) (.cse22 (<= 2 |ULTIMATE.start_dll_update_at_#in~data#1|)) (.cse23 (<= 0 |#StackHeapBarrier|)) (.cse24 (<= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse25 (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|)) (.cse26 (= |#NULL.base| 0))) (or (and .cse0 (<= 0 |ULTIMATE.start_dll_update_at_~index#1|) .cse1 .cse2 .cse3 .cse4 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse5 .cse6 .cse7 .cse8 (<= 0 |ULTIMATE.start_dll_update_at_~head#1.offset|) .cse9 .cse10 .cse11 (<= |ULTIMATE.start_dll_update_at_~head#1.offset| 0) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 (<= |ULTIMATE.start_main_~i~0#1| 1) .cse22 .cse23 .cse24 .cse25 .cse26) (and .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~i~0#1| 0) .cse4 .cse5 .cse8 (= |ULTIMATE.start_dll_create_~head~0#1.base| |ULTIMATE.start_dll_create_#res#1.base|) .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse19 (= |ULTIMATE.start_dll_create_#res#1.base| |ULTIMATE.start_main_~s~0#1.base|) .cse20 .cse23 .cse24 .cse25 .cse26) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (<= |ULTIMATE.start_main_~i~0#1| 2) .cse8 .cse9 (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26))) [2022-12-14 09:15:00,376 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 629) no Hoare annotation was computed. [2022-12-14 09:15:00,376 INFO L899 garLoopResultBuilder]: For program point L613(line 613) no Hoare annotation was computed. [2022-12-14 09:15:00,376 INFO L899 garLoopResultBuilder]: For program point L613-1(line 613) no Hoare annotation was computed. [2022-12-14 09:15:00,379 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:15:00,380 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:15:00,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:15:00 BoogieIcfgContainer [2022-12-14 09:15:00,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:15:00,402 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:15:00,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:15:00,402 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:15:00,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:13:52" (3/4) ... [2022-12-14 09:15:00,404 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 09:15:00,408 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2022-12-14 09:15:00,411 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-12-14 09:15:00,411 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-12-14 09:15:00,412 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 09:15:00,412 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 09:15:00,428 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0)) && 1 <= data) && 2 <= \old(len)) && len <= 2) && data <= 1) && data == 1) && 0 <= len) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 [2022-12-14 09:15:00,429 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((0 <= head && 0 <= index) && 0 <= s) && 1 <= data) && (new_head == 0 || head == 0)) && 2 <= \old(len)) && 1 <= i) && \result <= 0) && 0 <= \old(index)) && index <= 1) && data <= 1) && 0 <= head) && head <= 0) && data == 1) && 0 <= len) && head <= 0) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((0 <= s && 1 <= data) && (new_head == 0 || head == 0)) && i == 0) && 2 <= \old(len)) && \result <= 0) && data <= 1) && head == \result) && data == 1) && 0 <= len) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && head <= 0) && \result == s) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0)) || ((((((((((((((((((((((((((((0 <= head && 0 <= s) && 1 <= data) && (new_head == 0 || head == 0)) && 2 <= \old(len)) && \result <= 0) && 0 <= \old(index)) && index <= 1) && i <= 2) && data <= 1) && head <= 0) && 2 <= i) && data == 1) && 0 <= len) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) [2022-12-14 09:15:00,429 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((0 <= head && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && 1 <= data) && i < 2147483649) && i == 0) && 2 <= \old(len)) && \result <= 0) && 0 <= \old(index)) && index <= 1) && len <= 2) && data <= 1) && head <= 0) && data == 1) && 0 <= len) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((((((((((0 <= head && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && head <= 0) && 1 <= data) && expected <= 4) && i < 2147483649) && 2 <= \old(len)) && 1 <= i) && \result <= 0) && \old(index) <= 2) && 0 <= \old(index)) && index <= 1) && len <= 2) && i <= 2) && data <= 1) && index <= 2) && head <= 0) && data == 1) && 0 <= head) && 0 <= len) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0)) || (((((((((((((((((((((((((((((((((((((((0 <= head && 0 <= index) && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && head <= 0) && 1 <= data) && i < 2147483649) && 2 <= \old(len)) && 1 <= i) && i <= 2147483647) && \result <= 0) && 0 <= \old(index)) && index <= 1) && len <= 2) && 0 <= index) && index <= 0) && data <= 1) && 0 <= head) && head <= 0) && data == 1) && 0 <= head) && 0 <= len) && 2 <= \result) && head <= 0) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) [2022-12-14 09:15:00,429 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((0 <= head && 0 <= s) && 1 <= data) && 2 <= \old(len)) && 1 <= i) && \result <= 0) && 0 <= \old(index)) && index <= 1) && data <= 1) && head <= 0) && 0 <= len) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && ((new_head == 0 && data == 1) || (data == 1 && head == 0))) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= \old(data)) && i < len) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((0 <= head && 0 <= s) && 1 <= data) && i == 0) && 2 <= \old(len)) && \result <= 0) && 0 <= \old(index)) && data <= 1) && 0 <= head) && head <= 0) && 0 <= len) && head <= 0) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && ((new_head == 0 && data == 1) || (data == 1 && head == 0))) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && index == 0) && #NULL == 0) [2022-12-14 09:15:00,429 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((((0 <= head && 0 <= s) && head <= 0) && 1 <= data) && expected <= 4) && (new_head == 0 || head == 0)) && 2 <= \old(len)) && 1 <= i) && \result <= 0) && \old(index) <= 2) && 0 <= \old(index)) && index <= 1) && data <= 1) && index <= 2) && head <= 0) && data == 1) && 0 <= head) && 0 <= len) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((((((((((((0 <= head && 0 <= index) && 0 <= s) && head <= 0) && 1 <= data) && expected <= 4) && (new_head == 0 || head == 0)) && 2 <= \old(len)) && \result <= 0) && \old(index) <= 2) && 0 <= \old(index)) && index <= 1) && data <= 1) && index <= 2) && 0 <= i) && 0 <= head) && head <= 0) && data == 1) && 0 <= head) && 0 <= len) && head <= 0) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0)) || (((((((((((((((((((((((((((((((((((0 <= head && 1 <= data) && (new_head == 0 || head == 0)) && 2 <= \old(len)) && \result <= 0) && head == s) && head == head) && 0 <= \old(index)) && head == head) && index <= 1) && len + i == expected) && data <= 1) && index == \old(index)) && head <= 0) && data == 1) && 0 <= head) && 0 <= len) && \old(len) <= 2) && index == 0) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && head == s) && #NULL == 0) [2022-12-14 09:15:00,430 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((((((((0 <= head && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && head <= 0) && 1 <= data) && expected <= 4) && 2 <= \old(len)) && 1 <= i) && \result <= 0) && \old(index) <= 2) && unknown-#memory_int-unknown[head][head] == \result) && 0 <= \old(index)) && index <= 1) && len <= 2) && 0 <= aux-dll_get_data_at(s, i)-aux + 2147483648) && \result == aux-dll_get_data_at(s, i)-aux) && index <= 0) && data <= 1) && head <= 0) && data == 1) && 0 <= head) && aux-dll_get_data_at(s, i)-aux <= 2147483647) && 0 <= len) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((((((((((((((((0 <= head && 0 <= index) && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && head <= 0) && 1 <= data) && expected <= 4) && 2 <= \old(len)) && \result <= 0) && \old(index) <= 2) && unknown-#memory_int-unknown[head][head] == \result) && 0 <= \old(index)) && index <= 1) && len <= 2) && 0 <= aux-dll_get_data_at(s, i)-aux + 2147483648) && \result == aux-dll_get_data_at(s, i)-aux) && index <= 0) && data <= 1) && 0 <= i) && 0 <= head) && head <= 0) && data == 1) && 0 <= head) && aux-dll_get_data_at(s, i)-aux <= 2147483647) && 0 <= len) && head <= 0) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0)) || ((((((((((((((((((((((((((((((((((((((((0 <= head && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 1 <= data) && 2 <= \old(len)) && \result <= 0) && head == s) && unknown-#memory_int-unknown[head][head] == \result) && head == head) && 0 <= \old(index)) && head == head) && index <= 1) && len <= 2) && len + i == expected) && 0 <= aux-dll_get_data_at(s, i)-aux + 2147483648) && \result == aux-dll_get_data_at(s, i)-aux) && index <= 0) && data <= 1) && index == \old(index)) && head <= 0) && data == 1) && 0 <= head) && aux-dll_get_data_at(s, i)-aux <= 2147483647) && 0 <= len) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && head == s) && #NULL == 0) [2022-12-14 09:15:00,437 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 09:15:00,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:15:00,438 INFO L158 Benchmark]: Toolchain (without parser) took 68403.06ms. Allocated memory was 130.0MB in the beginning and 406.8MB in the end (delta: 276.8MB). Free memory was 92.8MB in the beginning and 323.5MB in the end (delta: -230.7MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2022-12-14 09:15:00,438 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 130.0MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:15:00,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.01ms. Allocated memory is still 130.0MB. Free memory was 92.4MB in the beginning and 75.2MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 09:15:00,438 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.73ms. Allocated memory is still 130.0MB. Free memory was 75.2MB in the beginning and 73.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:15:00,438 INFO L158 Benchmark]: Boogie Preprocessor took 26.91ms. Allocated memory is still 130.0MB. Free memory was 73.1MB in the beginning and 71.4MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 09:15:00,438 INFO L158 Benchmark]: RCFGBuilder took 376.24ms. Allocated memory is still 130.0MB. Free memory was 71.4MB in the beginning and 51.8MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 09:15:00,438 INFO L158 Benchmark]: TraceAbstraction took 67558.57ms. Allocated memory was 130.0MB in the beginning and 406.8MB in the end (delta: 276.8MB). Free memory was 51.0MB in the beginning and 327.7MB in the end (delta: -276.6MB). Peak memory consumption was 201.3MB. Max. memory is 16.1GB. [2022-12-14 09:15:00,438 INFO L158 Benchmark]: Witness Printer took 35.77ms. Allocated memory is still 406.8MB. Free memory was 327.7MB in the beginning and 323.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 09:15:00,439 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 130.0MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.01ms. Allocated memory is still 130.0MB. Free memory was 92.4MB in the beginning and 75.2MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.73ms. Allocated memory is still 130.0MB. Free memory was 75.2MB in the beginning and 73.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.91ms. Allocated memory is still 130.0MB. Free memory was 73.1MB in the beginning and 71.4MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 376.24ms. Allocated memory is still 130.0MB. Free memory was 71.4MB in the beginning and 51.8MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 67558.57ms. Allocated memory was 130.0MB in the beginning and 406.8MB in the end (delta: 276.8MB). Free memory was 51.0MB in the beginning and 327.7MB in the end (delta: -276.6MB). Peak memory consumption was 201.3MB. Max. memory is 16.1GB. * Witness Printer took 35.77ms. Allocated memory is still 406.8MB. Free memory was 327.7MB in the beginning and 323.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 599]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 599]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 620]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 620]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 634]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 634]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 613]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 613]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 633]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 633]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 67.5s, OverallIterations: 23, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 966 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 966 mSDsluCounter, 1473 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1051 mSDsCounter, 89 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2259 IncrementalHoareTripleChecker+Invalid, 2354 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 89 mSolverCounterUnsat, 422 mSDtfsCounter, 2259 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1091 GetRequests, 700 SyntacticMatches, 83 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2398 ImplicationChecksByTransitivity, 24.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=15, InterpolantAutomatonStates: 186, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 23 MinimizatonAttempts, 192 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 13 PreInvPairs, 41 NumberOfFragments, 1670 HoareAnnotationTreeSize, 13 FomulaSimplifications, 59201 FormulaSimplificationTreeSizeReduction, 5.5s HoareSimplificationTime, 11 FomulaSimplificationsInter, 139406 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 929 NumberOfCodeBlocks, 913 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 1156 ConstructedInterpolants, 0 QuantifiedInterpolants, 2812 SizeOfPredicates, 34 NumberOfNonLiveVariables, 3804 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 47 InterpolantComputations, 13 PerfectInterpolantSequences, 422/530 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 16.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 7, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 130, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 454, TOOLS_POST_TIME: 15.7s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 454, TOOLS_QUANTIFIERELIM_TIME: 15.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.9s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 731, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 42, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 27, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 53, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 130, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 26, LOOP_SUMMARIZER_CACHE_MISSES: 26, LOOP_SUMMARIZER_OVERALL_TIME: 12.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 12.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 53, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 3433, DAG_COMPRESSION_RETAINED_NODES: 505, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((0 <= head && 0 <= index) && 0 <= s) && 1 <= data) && (new_head == 0 || head == 0)) && 2 <= \old(len)) && 1 <= i) && \result <= 0) && 0 <= \old(index)) && index <= 1) && data <= 1) && 0 <= head) && head <= 0) && data == 1) && 0 <= len) && head <= 0) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((0 <= s && 1 <= data) && (new_head == 0 || head == 0)) && i == 0) && 2 <= \old(len)) && \result <= 0) && data <= 1) && head == \result) && data == 1) && 0 <= len) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && head <= 0) && \result == s) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0)) || ((((((((((((((((((((((((((((0 <= head && 0 <= s) && 1 <= data) && (new_head == 0 || head == 0)) && 2 <= \old(len)) && \result <= 0) && 0 <= \old(index)) && index <= 1) && i <= 2) && data <= 1) && head <= 0) && 2 <= i) && data == 1) && 0 <= len) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((0 <= head && 0 <= s) && head <= 0) && 1 <= data) && expected <= 4) && (new_head == 0 || head == 0)) && 2 <= \old(len)) && 1 <= i) && \result <= 0) && \old(index) <= 2) && 0 <= \old(index)) && index <= 1) && data <= 1) && index <= 2) && head <= 0) && data == 1) && 0 <= head) && 0 <= len) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((((((((((((0 <= head && 0 <= index) && 0 <= s) && head <= 0) && 1 <= data) && expected <= 4) && (new_head == 0 || head == 0)) && 2 <= \old(len)) && \result <= 0) && \old(index) <= 2) && 0 <= \old(index)) && index <= 1) && data <= 1) && index <= 2) && 0 <= i) && 0 <= head) && head <= 0) && data == 1) && 0 <= head) && 0 <= len) && head <= 0) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0)) || (((((((((((((((((((((((((((((((((((0 <= head && 1 <= data) && (new_head == 0 || head == 0)) && 2 <= \old(len)) && \result <= 0) && head == s) && head == head) && 0 <= \old(index)) && head == head) && index <= 1) && len + i == expected) && data <= 1) && index == \old(index)) && head <= 0) && data == 1) && 0 <= head) && 0 <= len) && \old(len) <= 2) && index == 0) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && head == s) && #NULL == 0) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: (((((((((((((((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0)) && 1 <= data) && 2 <= \old(len)) && len <= 2) && data <= 1) && data == 1) && 0 <= len) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((0 <= head && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && 1 <= data) && i < 2147483649) && i == 0) && 2 <= \old(len)) && \result <= 0) && 0 <= \old(index)) && index <= 1) && len <= 2) && data <= 1) && head <= 0) && data == 1) && 0 <= len) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((((((((((0 <= head && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && head <= 0) && 1 <= data) && expected <= 4) && i < 2147483649) && 2 <= \old(len)) && 1 <= i) && \result <= 0) && \old(index) <= 2) && 0 <= \old(index)) && index <= 1) && len <= 2) && i <= 2) && data <= 1) && index <= 2) && head <= 0) && data == 1) && 0 <= head) && 0 <= len) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0)) || (((((((((((((((((((((((((((((((((((((((0 <= head && 0 <= index) && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && head <= 0) && 1 <= data) && i < 2147483649) && 2 <= \old(len)) && 1 <= i) && i <= 2147483647) && \result <= 0) && 0 <= \old(index)) && index <= 1) && len <= 2) && 0 <= index) && index <= 0) && data <= 1) && 0 <= head) && head <= 0) && data == 1) && 0 <= head) && 0 <= len) && 2 <= \result) && head <= 0) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((0 <= head && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && head <= 0) && 1 <= data) && expected <= 4) && 2 <= \old(len)) && 1 <= i) && \result <= 0) && \old(index) <= 2) && unknown-#memory_int-unknown[head][head] == \result) && 0 <= \old(index)) && index <= 1) && len <= 2) && 0 <= aux-dll_get_data_at(s, i)-aux + 2147483648) && \result == aux-dll_get_data_at(s, i)-aux) && index <= 0) && data <= 1) && head <= 0) && data == 1) && 0 <= head) && aux-dll_get_data_at(s, i)-aux <= 2147483647) && 0 <= len) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((((((((((((((((0 <= head && 0 <= index) && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && head <= 0) && 1 <= data) && expected <= 4) && 2 <= \old(len)) && \result <= 0) && \old(index) <= 2) && unknown-#memory_int-unknown[head][head] == \result) && 0 <= \old(index)) && index <= 1) && len <= 2) && 0 <= aux-dll_get_data_at(s, i)-aux + 2147483648) && \result == aux-dll_get_data_at(s, i)-aux) && index <= 0) && data <= 1) && 0 <= i) && 0 <= head) && head <= 0) && data == 1) && 0 <= head) && aux-dll_get_data_at(s, i)-aux <= 2147483647) && 0 <= len) && head <= 0) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0)) || ((((((((((((((((((((((((((((((((((((((((0 <= head && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 1 <= data) && 2 <= \old(len)) && \result <= 0) && head == s) && unknown-#memory_int-unknown[head][head] == \result) && head == head) && 0 <= \old(index)) && head == head) && index <= 1) && len <= 2) && len + i == expected) && 0 <= aux-dll_get_data_at(s, i)-aux + 2147483648) && \result == aux-dll_get_data_at(s, i)-aux) && index <= 0) && data <= 1) && index == \old(index)) && head <= 0) && data == 1) && 0 <= head) && aux-dll_get_data_at(s, i)-aux <= 2147483647) && 0 <= len) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && head == s) && #NULL == 0) - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((0 <= head && 0 <= s) && 1 <= data) && 2 <= \old(len)) && 1 <= i) && \result <= 0) && 0 <= \old(index)) && index <= 1) && data <= 1) && head <= 0) && 0 <= len) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && ((new_head == 0 && data == 1) || (data == 1 && head == 0))) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= \old(data)) && i < len) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((0 <= head && 0 <= s) && 1 <= data) && i == 0) && 2 <= \old(len)) && \result <= 0) && 0 <= \old(index)) && data <= 1) && 0 <= head) && head <= 0) && 0 <= len) && head <= 0) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && ((new_head == 0 && data == 1) || (data == 1 && head == 0))) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && index == 0) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-12-14 09:15:00,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff70ffc5-30c7-47e7-8b91-0ae87e28e15f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE