./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 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW --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-4e7fbc6 [2022-11-23 15:34:56,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:34:56,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:34:56,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:34:56,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:34:56,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:34:56,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:34:56,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:34:56,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:34:56,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:34:56,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:34:56,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:34:56,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:34:56,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:34:56,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:34:56,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:34:56,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:34:56,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:34:56,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:34:56,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:34:56,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:34:56,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:34:56,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:34:56,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:34:56,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:34:56,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:34:56,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:34:56,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:34:56,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:34:56,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:34:56,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:34:56,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:34:56,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:34:56,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:34:56,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:34:56,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:34:56,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:34:56,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:34:56,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:34:56,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:34:56,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:34:56,232 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 15:34:56,258 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:34:56,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:34:56,264 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:34:56,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:34:56,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:34:56,265 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:34:56,266 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:34:56,266 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:34:56,266 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:34:56,266 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:34:56,267 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:34:56,268 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:34:56,268 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:34:56,268 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:34:56,268 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:34:56,268 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:34:56,269 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:34:56,269 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:34:56,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:34:56,270 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:34:56,270 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:34:56,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:34:56,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:34:56,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:34:56,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:34:56,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:34:56,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:34:56,272 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:34:56,273 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:34:56,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:34:56,273 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:34:56,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:34:56,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:34:56,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:34:56,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:34:56,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:34:56,275 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:34:56,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:34:56,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:34:56,275 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:34:56,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:34:56,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:34:56,276 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:34:56,276 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_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 [2022-11-23 15:34:56,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:34:56,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:34:56,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:34:56,582 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:34:56,582 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:34:56,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/list-simple/dll2n_update_all.i [2022-11-23 15:34:59,614 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:34:59,922 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:34:59,923 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/sv-benchmarks/c/list-simple/dll2n_update_all.i [2022-11-23 15:34:59,938 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/data/9e757cb1d/08f8482f13284267b5db58f989cdde93/FLAG726aed5f7 [2022-11-23 15:34:59,953 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/data/9e757cb1d/08f8482f13284267b5db58f989cdde93 [2022-11-23 15:34:59,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:34:59,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:34:59,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:34:59,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:34:59,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:34:59,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:59" (1/1) ... [2022-11-23 15:34:59,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33eeaf4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:59, skipping insertion in model container [2022-11-23 15:34:59,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:59" (1/1) ... [2022-11-23 15:34:59,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:35:00,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:35:00,354 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_882ff986-881d-4c6b-abba-4d37dc4a31dd/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2022-11-23 15:35:00,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:35:00,370 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:35:00,432 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_882ff986-881d-4c6b-abba-4d37dc4a31dd/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2022-11-23 15:35:00,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:35:00,471 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:35:00,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:00 WrapperNode [2022-11-23 15:35:00,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:35:00,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:35:00,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:35:00,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:35:00,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:00" (1/1) ... [2022-11-23 15:35:00,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:00" (1/1) ... [2022-11-23 15:35:00,521 INFO L138 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 125 [2022-11-23 15:35:00,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:35:00,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:35:00,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:35:00,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:35:00,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:00" (1/1) ... [2022-11-23 15:35:00,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:00" (1/1) ... [2022-11-23 15:35:00,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:00" (1/1) ... [2022-11-23 15:35:00,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:00" (1/1) ... [2022-11-23 15:35:00,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:00" (1/1) ... [2022-11-23 15:35:00,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:00" (1/1) ... [2022-11-23 15:35:00,554 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:00" (1/1) ... [2022-11-23 15:35:00,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:00" (1/1) ... [2022-11-23 15:35:00,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:35:00,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:35:00,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:35:00,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:35:00,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:00" (1/1) ... [2022-11-23 15:35:00,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:35:00,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:35:00,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:35:00,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:35:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-11-23 15:35:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-11-23 15:35:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:35:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:35:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:35:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:35:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:35:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:35:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:35:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:35:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:35:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:35:00,850 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:35:00,852 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:35:00,923 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-11-23 15:35:01,247 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:35:01,333 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:35:01,337 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-23 15:35:01,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:35:01 BoogieIcfgContainer [2022-11-23 15:35:01,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:35:01,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:35:01,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:35:01,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:35:01,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:34:59" (1/3) ... [2022-11-23 15:35:01,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2455285f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:35:01, skipping insertion in model container [2022-11-23 15:35:01,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:00" (2/3) ... [2022-11-23 15:35:01,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2455285f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:35:01, skipping insertion in model container [2022-11-23 15:35:01,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:35:01" (3/3) ... [2022-11-23 15:35:01,356 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_update_all.i [2022-11-23 15:35:01,376 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:35:01,377 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-23 15:35:01,446 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:35:01,456 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;@50557486, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:35:01,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-23 15:35:01,461 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) [2022-11-23 15:35:01,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 15:35:01,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:01,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 15:35:01,470 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)] === [2022-11-23 15:35:01,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:01,479 INFO L85 PathProgramCache]: Analyzing trace with hash 5638795, now seen corresponding path program 1 times [2022-11-23 15:35:01,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:01,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924152287] [2022-11-23 15:35:01,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:01,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:01,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:35:01,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:01,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924152287] [2022-11-23 15:35:01,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924152287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:01,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:35:01,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:35:01,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995481745] [2022-11-23 15:35:01,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:01,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:35:01,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:01,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:35:01,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:35:01,824 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) [2022-11-23 15:35:01,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:01,938 INFO L93 Difference]: Finished difference Result 83 states and 97 transitions. [2022-11-23 15:35:01,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:35:01,940 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 [2022-11-23 15:35:01,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:01,948 INFO L225 Difference]: With dead ends: 83 [2022-11-23 15:35:01,949 INFO L226 Difference]: Without dead ends: 44 [2022-11-23 15:35:01,952 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 [2022-11-23 15:35:01,958 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 7 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:35:01,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 75 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:35:01,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-23 15:35:01,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2022-11-23 15:35:01,996 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) [2022-11-23 15:35:01,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-11-23 15:35:02,000 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 4 [2022-11-23 15:35:02,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:02,001 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-11-23 15:35:02,001 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) [2022-11-23 15:35:02,001 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-11-23 15:35:02,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 15:35:02,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:02,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 15:35:02,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:35:02,003 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)] === [2022-11-23 15:35:02,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:02,004 INFO L85 PathProgramCache]: Analyzing trace with hash 170430933, now seen corresponding path program 1 times [2022-11-23 15:35:02,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:02,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388697890] [2022-11-23 15:35:02,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:02,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:02,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:35:02,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:02,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388697890] [2022-11-23 15:35:02,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388697890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:02,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:35:02,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:35:02,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474848236] [2022-11-23 15:35:02,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:02,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:35:02,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:02,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:35:02,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:35:02,230 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) [2022-11-23 15:35:02,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:02,311 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2022-11-23 15:35:02,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:35:02,315 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 [2022-11-23 15:35:02,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:02,316 INFO L225 Difference]: With dead ends: 44 [2022-11-23 15:35:02,317 INFO L226 Difference]: Without dead ends: 43 [2022-11-23 15:35:02,321 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 [2022-11-23 15:35:02,322 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 5 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:35:02,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 91 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:35:02,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-23 15:35:02,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2022-11-23 15:35:02,327 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) [2022-11-23 15:35:02,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-11-23 15:35:02,328 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 5 [2022-11-23 15:35:02,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:02,328 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-11-23 15:35:02,329 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) [2022-11-23 15:35:02,331 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-11-23 15:35:02,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 15:35:02,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:02,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 15:35:02,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:35:02,332 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)] === [2022-11-23 15:35:02,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:02,342 INFO L85 PathProgramCache]: Analyzing trace with hash 988391692, now seen corresponding path program 1 times [2022-11-23 15:35:02,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:02,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593525923] [2022-11-23 15:35:02,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:02,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:02,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:35:02,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:02,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593525923] [2022-11-23 15:35:02,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593525923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:02,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:35:02,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:35:02,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694938670] [2022-11-23 15:35:02,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:02,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:35:02,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:02,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:35:02,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:35:02,549 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) [2022-11-23 15:35:02,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:02,623 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2022-11-23 15:35:02,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:35:02,624 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 [2022-11-23 15:35:02,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:02,625 INFO L225 Difference]: With dead ends: 43 [2022-11-23 15:35:02,625 INFO L226 Difference]: Without dead ends: 42 [2022-11-23 15:35:02,626 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 [2022-11-23 15:35:02,627 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:35:02,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 92 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:35:02,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-23 15:35:02,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-23 15:35:02,632 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) [2022-11-23 15:35:02,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-11-23 15:35:02,637 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 6 [2022-11-23 15:35:02,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:02,637 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-11-23 15:35:02,638 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) [2022-11-23 15:35:02,638 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-11-23 15:35:02,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 15:35:02,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:02,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:35:02,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:35:02,640 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)] === [2022-11-23 15:35:02,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:02,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1118697962, now seen corresponding path program 1 times [2022-11-23 15:35:02,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:02,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687185224] [2022-11-23 15:35:02,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:02,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:02,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:35:02,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:02,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687185224] [2022-11-23 15:35:02,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687185224] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:35:02,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974725847] [2022-11-23 15:35:02,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:02,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:35:02,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:35:02,833 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:35:02,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:35:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:02,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 15:35:02,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:35:03,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:35:03,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:35:03,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:35:03,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974725847] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:35:03,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1506384739] [2022-11-23 15:35:03,101 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-23 15:35:03,101 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:35:03,105 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:35:03,110 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:35:03,110 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:35:03,219 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 15:35:03,220 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 [2022-11-23 15:35:03,271 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:35:03,272 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 [2022-11-23 15:35:03,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,368 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 [2022-11-23 15:35:03,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,389 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 [2022-11-23 15:35:03,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,420 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 [2022-11-23 15:35:03,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,467 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 [2022-11-23 15:35:03,665 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-23 15:35:03,666 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 [2022-11-23 15:35:03,694 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 [2022-11-23 15:35:03,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,842 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 [2022-11-23 15:35:03,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,891 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 [2022-11-23 15:35:03,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,937 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 [2022-11-23 15:35:03,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:03,970 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 [2022-11-23 15:35:04,391 INFO L321 Elim1Store]: treesize reduction 132, result has 17.0 percent of original size [2022-11-23 15:35:04,392 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 [2022-11-23 15:35:04,496 INFO L321 Elim1Store]: treesize reduction 196, result has 10.5 percent of original size [2022-11-23 15:35:04,496 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 [2022-11-23 15:35:04,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:04,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:04,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:04,713 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 [2022-11-23 15:35:04,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:04,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:04,774 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 [2022-11-23 15:35:04,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:04,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:04,815 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 [2022-11-23 15:35:04,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:04,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:04,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:04,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:04,851 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 [2022-11-23 15:35:05,178 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 [2022-11-23 15:35:05,199 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 [2022-11-23 15:35:05,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:05,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:05,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:05,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:05,332 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-23 15:35:05,333 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 [2022-11-23 15:35:05,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:05,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:05,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:05,414 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:35:05,415 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 [2022-11-23 15:35:05,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:05,454 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 [2022-11-23 15:35:05,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:05,479 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 [2022-11-23 15:35:05,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:05,562 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 [2022-11-23 15:35:05,595 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-23 15:35:05,595 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 [2022-11-23 15:35:05,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:05,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:05,611 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 [2022-11-23 15:35:05,666 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 [2022-11-23 15:35:05,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:05,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:05,681 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 [2022-11-23 15:35:05,704 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 [2022-11-23 15:35:05,779 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:35:07,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1506384739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:07,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:35:07,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 4] total 10 [2022-11-23 15:35:07,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020334225] [2022-11-23 15:35:07,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:07,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 15:35:07,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:07,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 15:35:07,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=77, Unknown=2, NotChecked=0, Total=110 [2022-11-23 15:35:07,486 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) [2022-11-23 15:35:08,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:08,437 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2022-11-23 15:35:08,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:35:08,438 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 [2022-11-23 15:35:08,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:08,439 INFO L225 Difference]: With dead ends: 71 [2022-11-23 15:35:08,439 INFO L226 Difference]: Without dead ends: 52 [2022-11-23 15:35:08,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=38, Invalid=91, Unknown=3, NotChecked=0, Total=132 [2022-11-23 15:35:08,440 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 61 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:35:08,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 52 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:35:08,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-23 15:35:08,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 39. [2022-11-23 15:35:08,451 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) [2022-11-23 15:35:08,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-11-23 15:35:08,457 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 9 [2022-11-23 15:35:08,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:08,457 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-11-23 15:35:08,457 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) [2022-11-23 15:35:08,457 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-11-23 15:35:08,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:35:08,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:08,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:35:08,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 15:35:08,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:35:08,663 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)] === [2022-11-23 15:35:08,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:08,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1815317118, now seen corresponding path program 1 times [2022-11-23 15:35:08,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:08,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397725141] [2022-11-23 15:35:08,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:08,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:08,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:35:08,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:08,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397725141] [2022-11-23 15:35:08,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397725141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:08,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:35:08,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:35:08,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895204534] [2022-11-23 15:35:08,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:08,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:35:08,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:08,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:35:08,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:35:08,768 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) [2022-11-23 15:35:08,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:08,863 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-11-23 15:35:08,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:35:08,863 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 [2022-11-23 15:35:08,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:08,864 INFO L225 Difference]: With dead ends: 63 [2022-11-23 15:35:08,864 INFO L226 Difference]: Without dead ends: 61 [2022-11-23 15:35:08,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:35:08,866 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 23 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-23 15:35:08,866 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] [2022-11-23 15:35:08,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-23 15:35:08,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 44. [2022-11-23 15:35:08,874 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) [2022-11-23 15:35:08,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2022-11-23 15:35:08,875 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 12 [2022-11-23 15:35:08,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:08,875 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2022-11-23 15:35:08,876 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) [2022-11-23 15:35:08,876 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2022-11-23 15:35:08,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:35:08,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:08,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:35:08,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:35:08,877 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)] === [2022-11-23 15:35:08,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:08,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1815313727, now seen corresponding path program 1 times [2022-11-23 15:35:08,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:08,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189451034] [2022-11-23 15:35:08,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:08,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:08,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:35:08,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:08,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189451034] [2022-11-23 15:35:08,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189451034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:08,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:35:08,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:35:08,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443443621] [2022-11-23 15:35:08,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:08,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:35:08,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:08,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:35:08,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:35:08,943 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) [2022-11-23 15:35:09,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:09,042 INFO L93 Difference]: Finished difference Result 126 states and 141 transitions. [2022-11-23 15:35:09,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:35:09,043 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 [2022-11-23 15:35:09,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:09,044 INFO L225 Difference]: With dead ends: 126 [2022-11-23 15:35:09,044 INFO L226 Difference]: Without dead ends: 92 [2022-11-23 15:35:09,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:35:09,046 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 [2022-11-23 15:35:09,046 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] [2022-11-23 15:35:09,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-23 15:35:09,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 42. [2022-11-23 15:35:09,055 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) [2022-11-23 15:35:09,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-11-23 15:35:09,056 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 12 [2022-11-23 15:35:09,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:09,056 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-11-23 15:35:09,056 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) [2022-11-23 15:35:09,056 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-11-23 15:35:09,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 15:35:09,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:09,057 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:35:09,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:35:09,058 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)] === [2022-11-23 15:35:09,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:09,058 INFO L85 PathProgramCache]: Analyzing trace with hash -2115822576, now seen corresponding path program 1 times [2022-11-23 15:35:09,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:09,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317166945] [2022-11-23 15:35:09,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:09,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:35:09,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:09,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317166945] [2022-11-23 15:35:09,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317166945] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:35:09,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130379972] [2022-11-23 15:35:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:09,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:35:09,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:35:09,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:35:09,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:35:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:09,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 15:35:09,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:35:09,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:35:09,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:35:09,334 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:35:09,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130379972] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:35:09,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [810003391] [2022-11-23 15:35:09,339 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-23 15:35:09,339 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:35:09,340 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:35:09,340 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:35:09,340 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:35:09,403 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 15:35:09,404 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 [2022-11-23 15:35:09,449 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:35:09,450 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 [2022-11-23 15:35:09,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:09,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:09,495 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 [2022-11-23 15:35:09,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:09,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:09,516 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 [2022-11-23 15:35:09,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:09,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:09,537 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 [2022-11-23 15:35:09,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:09,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:09,551 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 [2022-11-23 15:35:09,704 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-23 15:35:09,705 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 [2022-11-23 15:35:09,744 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-23 15:35:09,745 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 [2022-11-23 15:35:10,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:10,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:10,298 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-23 15:35:10,299 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 [2022-11-23 15:35:10,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:10,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:10,381 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-23 15:35:10,381 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 [2022-11-23 15:35:10,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:10,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:10,431 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 [2022-11-23 15:35:10,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:10,460 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:10,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:10,462 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:10,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:10,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:10,526 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-23 15:35:10,527 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 [2022-11-23 15:35:10,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:10,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:10,580 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 [2022-11-23 15:35:10,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:10,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:10,610 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:10,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:10,681 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-23 15:35:10,682 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 [2022-11-23 15:35:10,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:10,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:10,810 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 [2022-11-23 15:35:10,825 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 [2022-11-23 15:35:10,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:10,842 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 [2022-11-23 15:35:11,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:11,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:11,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:11,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:11,123 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-23 15:35:11,123 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 [2022-11-23 15:35:11,263 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-23 15:35:11,263 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 [2022-11-23 15:35:11,277 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 [2022-11-23 15:35:11,299 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 [2022-11-23 15:35:11,727 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 [2022-11-23 15:35:11,734 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 [2022-11-23 15:35:11,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:11,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:11,775 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:11,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:11,827 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-23 15:35:11,828 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 [2022-11-23 15:35:11,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:11,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:11,865 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:11,900 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:35:11,901 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 [2022-11-23 15:35:11,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:11,941 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 [2022-11-23 15:35:11,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:11,961 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 [2022-11-23 15:35:12,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:12,005 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 [2022-11-23 15:35:12,062 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-23 15:35:12,062 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 [2022-11-23 15:35:12,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:12,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:12,076 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 [2022-11-23 15:35:12,150 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-23 15:35:12,150 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 [2022-11-23 15:35:12,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:12,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:12,162 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 [2022-11-23 15:35:12,340 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 [2022-11-23 15:35:12,349 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 [2022-11-23 15:35:12,366 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 [2022-11-23 15:35:12,475 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 [2022-11-23 15:35:12,484 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 [2022-11-23 15:35:12,495 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 [2022-11-23 15:35:12,571 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 [2022-11-23 15:35:12,579 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 [2022-11-23 15:35:12,588 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 [2022-11-23 15:35:12,688 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 [2022-11-23 15:35:12,695 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 [2022-11-23 15:35:12,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:12,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:12,737 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:12,738 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:12,784 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-23 15:35:12,784 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 [2022-11-23 15:35:12,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:12,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:12,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:12,853 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:35:12,854 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 [2022-11-23 15:35:12,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:12,888 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 [2022-11-23 15:35:12,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:12,909 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 [2022-11-23 15:35:12,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:12,938 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 [2022-11-23 15:35:12,980 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-23 15:35:12,980 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 [2022-11-23 15:35:12,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:12,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:12,992 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 [2022-11-23 15:35:13,076 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-23 15:35:13,076 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 [2022-11-23 15:35:13,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:13,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:13,087 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 [2022-11-23 15:35:13,153 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:35:14,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [810003391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:14,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:35:14,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4, 4] total 13 [2022-11-23 15:35:14,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844470884] [2022-11-23 15:35:14,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:14,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 15:35:14,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:14,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 15:35:14,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=137, Unknown=3, NotChecked=0, Total=182 [2022-11-23 15:35:14,527 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) [2022-11-23 15:35:15,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:15,177 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2022-11-23 15:35:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 15:35:15,178 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 [2022-11-23 15:35:15,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:15,178 INFO L225 Difference]: With dead ends: 76 [2022-11-23 15:35:15,179 INFO L226 Difference]: Without dead ends: 70 [2022-11-23 15:35:15,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=63, Invalid=206, Unknown=3, NotChecked=0, Total=272 [2022-11-23 15:35:15,180 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 143 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:35:15,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 85 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 157 Invalid, 1 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:35:15,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-23 15:35:15,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 49. [2022-11-23 15:35:15,190 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) [2022-11-23 15:35:15,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2022-11-23 15:35:15,191 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 15 [2022-11-23 15:35:15,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:15,191 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2022-11-23 15:35:15,192 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) [2022-11-23 15:35:15,192 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2022-11-23 15:35:15,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 15:35:15,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:15,197 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:35:15,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:35:15,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-23 15:35:15,398 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)] === [2022-11-23 15:35:15,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:15,398 INFO L85 PathProgramCache]: Analyzing trace with hash 469757189, now seen corresponding path program 1 times [2022-11-23 15:35:15,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:15,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811563853] [2022-11-23 15:35:15,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:15,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:15,465 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:35:15,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:15,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811563853] [2022-11-23 15:35:15,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811563853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:15,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:35:15,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:35:15,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130465311] [2022-11-23 15:35:15,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:15,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:35:15,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:15,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:35:15,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:35:15,467 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) [2022-11-23 15:35:15,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:15,505 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2022-11-23 15:35:15,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:35:15,506 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 [2022-11-23 15:35:15,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:15,506 INFO L225 Difference]: With dead ends: 49 [2022-11-23 15:35:15,506 INFO L226 Difference]: Without dead ends: 48 [2022-11-23 15:35:15,507 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 [2022-11-23 15:35:15,507 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 [2022-11-23 15:35:15,508 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] [2022-11-23 15:35:15,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-23 15:35:15,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-11-23 15:35:15,517 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) [2022-11-23 15:35:15,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2022-11-23 15:35:15,518 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 18 [2022-11-23 15:35:15,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:15,518 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2022-11-23 15:35:15,519 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) [2022-11-23 15:35:15,519 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2022-11-23 15:35:15,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 15:35:15,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:15,520 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:35:15,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:35:15,520 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)] === [2022-11-23 15:35:15,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:15,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1677571067, now seen corresponding path program 1 times [2022-11-23 15:35:15,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:15,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279734025] [2022-11-23 15:35:15,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:15,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:15,604 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 15:35:15,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:15,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279734025] [2022-11-23 15:35:15,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279734025] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:35:15,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888809206] [2022-11-23 15:35:15,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:15,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:35:15,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:35:15,606 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:35:15,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:35:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:15,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 15:35:15,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:35:15,751 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 15:35:15,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:35:15,782 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 15:35:15,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888809206] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:35:15,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2057396839] [2022-11-23 15:35:15,784 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 15:35:15,784 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:35:15,785 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:35:15,785 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:35:15,785 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:35:15,825 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 15:35:15,826 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 [2022-11-23 15:35:15,871 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:35:15,871 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 [2022-11-23 15:35:15,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:15,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:15,904 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 [2022-11-23 15:35:15,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:15,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:15,931 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 [2022-11-23 15:35:15,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:15,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:15,947 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 [2022-11-23 15:35:15,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:15,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:15,972 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 [2022-11-23 15:35:16,092 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-23 15:35:16,093 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 [2022-11-23 15:35:16,131 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-23 15:35:16,131 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 [2022-11-23 15:35:16,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:16,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:16,488 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-23 15:35:16,488 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 [2022-11-23 15:35:16,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:16,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:16,558 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-23 15:35:16,558 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 [2022-11-23 15:35:16,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:16,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:16,602 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 [2022-11-23 15:35:16,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:16,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:16,623 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:16,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:16,777 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-23 15:35:16,777 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 [2022-11-23 15:35:16,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:16,824 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 [2022-11-23 15:35:16,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:16,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:16,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:16,850 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:16,851 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 [2022-11-23 15:35:16,894 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 [2022-11-23 15:35:16,906 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 [2022-11-23 15:35:16,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:16,921 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 [2022-11-23 15:35:17,005 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-23 15:35:17,006 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 [2022-11-23 15:35:17,020 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 [2022-11-23 15:35:17,034 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:17,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:17,036 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 [2022-11-23 15:35:17,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:17,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:17,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:17,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:17,157 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-23 15:35:17,158 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 [2022-11-23 15:35:17,681 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 [2022-11-23 15:35:17,688 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 [2022-11-23 15:35:17,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:17,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:17,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:17,734 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:17,767 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-23 15:35:17,768 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 [2022-11-23 15:35:17,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:17,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:17,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:17,831 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:35:17,832 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 [2022-11-23 15:35:17,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:17,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:17,870 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 [2022-11-23 15:35:17,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:17,896 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 [2022-11-23 15:35:17,940 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-23 15:35:17,941 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 [2022-11-23 15:35:17,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:17,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:17,953 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 [2022-11-23 15:35:17,979 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 [2022-11-23 15:35:17,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:17,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:17,990 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 [2022-11-23 15:35:17,999 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 [2022-11-23 15:35:18,164 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 [2022-11-23 15:35:18,180 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 [2022-11-23 15:35:18,189 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 [2022-11-23 15:35:18,280 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 [2022-11-23 15:35:18,288 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 [2022-11-23 15:35:18,295 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 [2022-11-23 15:35:18,400 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 [2022-11-23 15:35:18,407 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 [2022-11-23 15:35:18,417 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 [2022-11-23 15:35:18,479 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 [2022-11-23 15:35:18,486 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 [2022-11-23 15:35:18,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:18,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:18,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:18,576 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:35:18,577 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 [2022-11-23 15:35:18,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:18,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:18,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:18,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:18,633 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-23 15:35:18,633 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 [2022-11-23 15:35:18,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:18,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:18,676 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 [2022-11-23 15:35:18,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:18,704 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 [2022-11-23 15:35:18,751 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 [2022-11-23 15:35:18,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:18,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:18,762 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 [2022-11-23 15:35:18,773 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 [2022-11-23 15:35:18,798 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 [2022-11-23 15:35:18,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:18,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:18,809 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 [2022-11-23 15:35:18,818 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 [2022-11-23 15:35:19,013 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:35:20,793 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 [2022-11-23 15:35:20,793 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:35:20,793 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:35:20,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2022-11-23 15:35:20,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996482215] [2022-11-23 15:35:20,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:35:20,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:35:20,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:20,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:35:20,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=189, Unknown=2, NotChecked=0, Total=240 [2022-11-23 15:35:20,795 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) [2022-11-23 15:35:20,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:20,890 INFO L93 Difference]: Finished difference Result 94 states and 106 transitions. [2022-11-23 15:35:20,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:35:20,891 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 [2022-11-23 15:35:20,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:20,891 INFO L225 Difference]: With dead ends: 94 [2022-11-23 15:35:20,892 INFO L226 Difference]: Without dead ends: 53 [2022-11-23 15:35:20,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=55, Invalid=215, Unknown=2, NotChecked=0, Total=272 [2022-11-23 15:35:20,893 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 8 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:35:20,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 114 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:35:20,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-23 15:35:20,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-23 15:35:20,903 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) [2022-11-23 15:35:20,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2022-11-23 15:35:20,903 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 19 [2022-11-23 15:35:20,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:20,904 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2022-11-23 15:35:20,904 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) [2022-11-23 15:35:20,904 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2022-11-23 15:35:20,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 15:35:20,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:20,905 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:35:20,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:35:21,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-23 15:35:21,111 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)] === [2022-11-23 15:35:21,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:21,111 INFO L85 PathProgramCache]: Analyzing trace with hash 811585808, now seen corresponding path program 2 times [2022-11-23 15:35:21,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:21,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892899476] [2022-11-23 15:35:21,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:21,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:21,251 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-23 15:35:21,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:21,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892899476] [2022-11-23 15:35:21,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892899476] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:35:21,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420846957] [2022-11-23 15:35:21,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 15:35:21,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:35:21,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:35:21,254 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:35:21,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:35:21,367 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 15:35:21,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:35:21,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 15:35:21,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:35:21,407 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 15:35:21,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:35:21,485 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 15:35:21,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420846957] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:35:21,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1009395276] [2022-11-23 15:35:21,487 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 15:35:21,487 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:35:21,488 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:35:21,488 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:35:21,488 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:35:21,527 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 15:35:21,527 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 [2022-11-23 15:35:21,567 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:35:21,568 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 [2022-11-23 15:35:21,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:21,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:21,608 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 [2022-11-23 15:35:21,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:21,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:21,617 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 [2022-11-23 15:35:21,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:21,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:21,639 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 [2022-11-23 15:35:21,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:21,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:21,659 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 [2022-11-23 15:35:21,777 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-23 15:35:21,778 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 [2022-11-23 15:35:21,813 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-23 15:35:21,813 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 [2022-11-23 15:35:22,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:22,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:22,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:22,164 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-23 15:35:22,164 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 [2022-11-23 15:35:22,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:22,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:22,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:22,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:22,249 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-23 15:35:22,250 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 [2022-11-23 15:35:22,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:22,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:22,293 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 [2022-11-23 15:35:22,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:22,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:22,330 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 [2022-11-23 15:35:22,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:22,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:22,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:22,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:22,407 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-23 15:35:22,407 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 [2022-11-23 15:35:22,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:22,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:22,486 INFO L321 Elim1Store]: treesize reduction 90, result has 37.9 percent of original size [2022-11-23 15:35:22,487 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 [2022-11-23 15:35:22,763 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-23 15:35:22,763 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 [2022-11-23 15:35:22,776 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 [2022-11-23 15:35:22,814 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 [2022-11-23 15:35:22,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:22,855 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 [2022-11-23 15:35:22,868 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 [2022-11-23 15:35:22,882 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 [2022-11-23 15:35:22,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:22,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:22,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:22,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:22,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:22,967 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-23 15:35:22,967 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 [2022-11-23 15:35:23,325 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 [2022-11-23 15:35:23,331 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 [2022-11-23 15:35:23,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:23,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:23,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:23,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:23,403 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-23 15:35:23,404 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 [2022-11-23 15:35:23,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:23,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:23,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:23,498 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:35:23,499 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 [2022-11-23 15:35:23,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:23,530 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 [2022-11-23 15:35:23,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:23,564 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 [2022-11-23 15:35:23,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:23,588 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 [2022-11-23 15:35:23,646 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 [2022-11-23 15:35:23,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:23,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:23,657 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 [2022-11-23 15:35:23,666 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 [2022-11-23 15:35:23,705 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-23 15:35:23,705 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 [2022-11-23 15:35:23,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:23,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:23,715 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 [2022-11-23 15:35:23,724 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 [2022-11-23 15:35:23,842 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 [2022-11-23 15:35:23,851 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 [2022-11-23 15:35:23,860 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 [2022-11-23 15:35:23,934 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 [2022-11-23 15:35:23,941 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 [2022-11-23 15:35:23,950 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 [2022-11-23 15:35:24,068 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 [2022-11-23 15:35:24,074 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 [2022-11-23 15:35:24,081 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 [2022-11-23 15:35:24,140 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 [2022-11-23 15:35:24,146 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 [2022-11-23 15:35:24,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:24,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:24,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:24,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:24,230 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-23 15:35:24,231 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 [2022-11-23 15:35:24,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:24,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:24,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:24,294 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:35:24,295 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 [2022-11-23 15:35:24,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:24,322 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 [2022-11-23 15:35:24,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:24,341 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 [2022-11-23 15:35:24,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:24,369 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 [2022-11-23 15:35:24,393 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-23 15:35:24,394 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 [2022-11-23 15:35:24,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:24,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:24,406 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 [2022-11-23 15:35:24,457 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 [2022-11-23 15:35:24,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:24,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:24,469 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 [2022-11-23 15:35:24,481 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 [2022-11-23 15:35:24,595 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:35:26,598 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 [2022-11-23 15:35:26,598 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:35:26,599 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:35:26,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 11 [2022-11-23 15:35:26,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602901818] [2022-11-23 15:35:26,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:35:26,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 15:35:26,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:26,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 15:35:26,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=375, Unknown=2, NotChecked=0, Total=462 [2022-11-23 15:35:26,601 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) [2022-11-23 15:35:26,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:26,826 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2022-11-23 15:35:26,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 15:35:26,826 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 [2022-11-23 15:35:26,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:26,827 INFO L225 Difference]: With dead ends: 70 [2022-11-23 15:35:26,827 INFO L226 Difference]: Without dead ends: 67 [2022-11-23 15:35:26,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=146, Invalid=608, Unknown=2, NotChecked=0, Total=756 [2022-11-23 15:35:26,829 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 197 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:35:26,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 81 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:35:26,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-23 15:35:26,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 49. [2022-11-23 15:35:26,839 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) [2022-11-23 15:35:26,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2022-11-23 15:35:26,839 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 24 [2022-11-23 15:35:26,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:26,840 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2022-11-23 15:35:26,840 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) [2022-11-23 15:35:26,840 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2022-11-23 15:35:26,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 15:35:26,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:26,841 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:35:26,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:35:27,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:35:27,047 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)] === [2022-11-23 15:35:27,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:27,048 INFO L85 PathProgramCache]: Analyzing trace with hash -325592861, now seen corresponding path program 1 times [2022-11-23 15:35:27,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:27,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163749721] [2022-11-23 15:35:27,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:27,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:27,131 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 15:35:27,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:27,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163749721] [2022-11-23 15:35:27,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163749721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:27,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:35:27,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:35:27,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966890904] [2022-11-23 15:35:27,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:27,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:35:27,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:27,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:35:27,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:35:27,133 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) [2022-11-23 15:35:27,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:27,211 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2022-11-23 15:35:27,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:35:27,211 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 [2022-11-23 15:35:27,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:27,212 INFO L225 Difference]: With dead ends: 79 [2022-11-23 15:35:27,212 INFO L226 Difference]: Without dead ends: 65 [2022-11-23 15:35:27,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:35:27,213 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 21 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-23 15:35:27,214 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] [2022-11-23 15:35:27,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-23 15:35:27,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2022-11-23 15:35:27,225 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) [2022-11-23 15:35:27,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2022-11-23 15:35:27,225 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 24 [2022-11-23 15:35:27,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:27,226 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2022-11-23 15:35:27,226 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) [2022-11-23 15:35:27,226 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2022-11-23 15:35:27,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-23 15:35:27,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:27,227 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] [2022-11-23 15:35:27,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 15:35:27,228 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)] === [2022-11-23 15:35:27,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:27,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1503387806, now seen corresponding path program 1 times [2022-11-23 15:35:27,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:27,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140620811] [2022-11-23 15:35:27,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:27,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:27,318 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 15:35:27,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:27,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140620811] [2022-11-23 15:35:27,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140620811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:27,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:35:27,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:35:27,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008533651] [2022-11-23 15:35:27,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:27,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:35:27,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:27,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:35:27,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:35:27,321 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) [2022-11-23 15:35:27,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:27,403 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2022-11-23 15:35:27,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:35:27,403 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 [2022-11-23 15:35:27,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:27,404 INFO L225 Difference]: With dead ends: 61 [2022-11-23 15:35:27,404 INFO L226 Difference]: Without dead ends: 59 [2022-11-23 15:35:27,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:35:27,405 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-23 15:35:27,405 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] [2022-11-23 15:35:27,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-23 15:35:27,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 56. [2022-11-23 15:35:27,416 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) [2022-11-23 15:35:27,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2022-11-23 15:35:27,416 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 25 [2022-11-23 15:35:27,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:27,416 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2022-11-23 15:35:27,417 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) [2022-11-23 15:35:27,417 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2022-11-23 15:35:27,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-23 15:35:27,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:27,418 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:35:27,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 15:35:27,418 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)] === [2022-11-23 15:35:27,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:27,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1750080047, now seen corresponding path program 1 times [2022-11-23 15:35:27,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:27,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743113450] [2022-11-23 15:35:27,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:27,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:27,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:27,528 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:35:27,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:27,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743113450] [2022-11-23 15:35:27,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743113450] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:35:27,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853977711] [2022-11-23 15:35:27,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:27,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:35:27,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:35:27,533 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:35:27,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 15:35:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:27,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:35:27,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:35:27,735 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 15:35:27,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:35:27,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853977711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:27,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:35:27,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 6 [2022-11-23 15:35:27,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25424592] [2022-11-23 15:35:27,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:27,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:35:27,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:27,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:35:27,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:35:27,738 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) [2022-11-23 15:35:27,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:27,859 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2022-11-23 15:35:27,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:35:27,859 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 [2022-11-23 15:35:27,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:27,860 INFO L225 Difference]: With dead ends: 59 [2022-11-23 15:35:27,860 INFO L226 Difference]: Without dead ends: 58 [2022-11-23 15:35:27,860 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 [2022-11-23 15:35:27,861 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 18 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:35:27,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 75 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:35:27,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-23 15:35:27,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2022-11-23 15:35:27,874 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) [2022-11-23 15:35:27,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2022-11-23 15:35:27,875 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 26 [2022-11-23 15:35:27,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:27,875 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2022-11-23 15:35:27,876 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) [2022-11-23 15:35:27,876 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2022-11-23 15:35:27,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-23 15:35:27,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:27,882 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:35:27,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 15:35:28,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-23 15:35:28,089 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)] === [2022-11-23 15:35:28,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:28,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1582093499, now seen corresponding path program 1 times [2022-11-23 15:35:28,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:28,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490815119] [2022-11-23 15:35:28,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:28,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:28,333 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-23 15:35:28,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:28,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490815119] [2022-11-23 15:35:28,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490815119] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:35:28,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193786814] [2022-11-23 15:35:28,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:28,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:35:28,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:35:28,335 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:35:28,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 15:35:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:28,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:35:28,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:35:28,535 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 15:35:28,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:35:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 15:35:28,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193786814] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:35:28,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1278969343] [2022-11-23 15:35:28,592 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 15:35:28,592 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:35:28,593 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:35:28,593 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:35:28,593 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:35:28,639 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:35:28,639 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 [2022-11-23 15:35:28,651 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 [2022-11-23 15:35:28,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:28,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:28,687 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 [2022-11-23 15:35:28,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:28,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:28,697 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 [2022-11-23 15:35:28,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:28,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:28,715 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 [2022-11-23 15:35:28,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:28,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:28,730 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 [2022-11-23 15:35:28,843 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-23 15:35:28,843 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 [2022-11-23 15:35:28,876 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-23 15:35:28,877 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 [2022-11-23 15:35:29,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:29,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:29,195 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-23 15:35:29,196 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 [2022-11-23 15:35:29,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:29,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:29,267 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-23 15:35:29,268 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 [2022-11-23 15:35:29,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:29,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:29,305 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 [2022-11-23 15:35:29,333 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:29,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:29,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:29,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:29,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:29,440 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-23 15:35:29,441 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 [2022-11-23 15:35:29,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:29,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:29,489 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 [2022-11-23 15:35:29,512 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:29,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:29,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:29,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:29,564 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-23 15:35:29,564 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 [2022-11-23 15:35:29,793 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 [2022-11-23 15:35:29,805 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 [2022-11-23 15:35:29,819 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 [2022-11-23 15:35:29,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:29,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:29,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:29,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:29,876 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-23 15:35:29,877 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 [2022-11-23 15:35:29,971 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-23 15:35:29,972 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 [2022-11-23 15:35:29,987 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 [2022-11-23 15:35:30,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:30,009 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 [2022-11-23 15:35:30,325 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 [2022-11-23 15:35:30,331 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 [2022-11-23 15:35:30,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:30,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:30,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:30,447 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:35:30,447 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 [2022-11-23 15:35:30,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:30,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:30,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:30,480 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:30,509 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-23 15:35:30,510 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 158 treesize of output 178 [2022-11-23 15:35:30,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:30,538 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 [2022-11-23 15:35:30,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:30,556 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 [2022-11-23 15:35:30,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:30,580 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 [2022-11-23 15:35:30,607 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 [2022-11-23 15:35:30,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:30,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:30,621 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 [2022-11-23 15:35:30,632 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 [2022-11-23 15:35:30,739 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-23 15:35:30,739 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 [2022-11-23 15:35:30,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:30,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:30,752 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 [2022-11-23 15:35:30,958 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 [2022-11-23 15:35:30,975 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 [2022-11-23 15:35:30,984 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 [2022-11-23 15:35:31,158 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 [2022-11-23 15:35:31,164 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 [2022-11-23 15:35:31,170 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 [2022-11-23 15:35:31,281 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 [2022-11-23 15:35:31,288 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 [2022-11-23 15:35:31,295 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 [2022-11-23 15:35:31,387 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 [2022-11-23 15:35:31,392 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 [2022-11-23 15:35:31,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:31,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:31,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:31,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:31,466 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-23 15:35:31,466 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 171 treesize of output 185 [2022-11-23 15:35:31,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:31,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:31,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:31,531 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:35:31,532 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 [2022-11-23 15:35:31,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:31,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:31,587 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 [2022-11-23 15:35:31,622 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-23 15:35:31,622 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 [2022-11-23 15:35:31,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:31,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:31,641 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 [2022-11-23 15:35:31,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:31,688 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 [2022-11-23 15:35:31,704 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 [2022-11-23 15:35:31,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:31,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:31,715 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 [2022-11-23 15:35:31,725 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 [2022-11-23 15:35:31,815 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:35:33,737 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 [2022-11-23 15:35:33,738 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:35:33,738 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:35:33,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-11-23 15:35:33,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187351341] [2022-11-23 15:35:33,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:35:33,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 15:35:33,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:33,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 15:35:33,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=460, Unknown=2, NotChecked=0, Total=552 [2022-11-23 15:35:33,739 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) [2022-11-23 15:35:34,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:34,017 INFO L93 Difference]: Finished difference Result 84 states and 97 transitions. [2022-11-23 15:35:34,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 15:35:34,018 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 [2022-11-23 15:35:34,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:34,018 INFO L225 Difference]: With dead ends: 84 [2022-11-23 15:35:34,018 INFO L226 Difference]: Without dead ends: 83 [2022-11-23 15:35:34,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 60 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=151, Invalid=717, Unknown=2, NotChecked=0, Total=870 [2022-11-23 15:35:34,019 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 31 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:35:34,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 142 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:35:34,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-23 15:35:34,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 76. [2022-11-23 15:35:34,041 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) [2022-11-23 15:35:34,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 90 transitions. [2022-11-23 15:35:34,042 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 90 transitions. Word has length 27 [2022-11-23 15:35:34,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:34,042 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 90 transitions. [2022-11-23 15:35:34,043 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) [2022-11-23 15:35:34,043 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 90 transitions. [2022-11-23 15:35:34,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 15:35:34,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:34,043 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] [2022-11-23 15:35:34,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 15:35:34,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-23 15:35:34,249 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)] === [2022-11-23 15:35:34,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:34,250 INFO L85 PathProgramCache]: Analyzing trace with hash 492985978, now seen corresponding path program 1 times [2022-11-23 15:35:34,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:34,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406805546] [2022-11-23 15:35:34,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:34,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:34,397 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-23 15:35:34,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:34,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406805546] [2022-11-23 15:35:34,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406805546] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:35:34,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215423352] [2022-11-23 15:35:34,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:34,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:35:34,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:35:34,399 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:35:34,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 15:35:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:34,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:35:34,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:35:34,659 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 15:35:34,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:35:34,714 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 15:35:34,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215423352] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:35:34,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [365814259] [2022-11-23 15:35:34,716 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-23 15:35:34,716 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:35:34,717 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:35:34,717 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:35:34,717 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:35:34,763 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 15:35:34,763 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 [2022-11-23 15:35:34,798 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:35:34,799 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 [2022-11-23 15:35:34,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:34,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:34,836 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 [2022-11-23 15:35:34,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:34,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:34,854 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 [2022-11-23 15:35:34,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:34,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:34,865 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 [2022-11-23 15:35:34,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:34,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:34,882 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 [2022-11-23 15:35:35,001 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-23 15:35:35,001 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 [2022-11-23 15:35:35,036 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-23 15:35:35,036 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 [2022-11-23 15:35:35,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,384 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-23 15:35:35,385 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 [2022-11-23 15:35:35,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,452 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-23 15:35:35,452 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 [2022-11-23 15:35:35,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,495 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 [2022-11-23 15:35:35,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,527 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 [2022-11-23 15:35:35,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:35,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:35,548 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:35,614 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-23 15:35:35,615 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 [2022-11-23 15:35:35,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:35,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:35,639 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 [2022-11-23 15:35:35,695 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 [2022-11-23 15:35:35,710 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 [2022-11-23 15:35:35,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:35,729 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 [2022-11-23 15:35:35,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,792 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-23 15:35:35,793 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 [2022-11-23 15:35:35,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,913 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 [2022-11-23 15:35:35,925 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 [2022-11-23 15:35:35,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:35,945 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 [2022-11-23 15:35:36,293 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 [2022-11-23 15:35:36,299 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 [2022-11-23 15:35:36,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:36,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:36,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:36,393 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:35:36,393 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 [2022-11-23 15:35:36,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:36,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:36,421 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:36,422 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:36,445 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-23 15:35:36,445 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 [2022-11-23 15:35:36,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:36,472 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 [2022-11-23 15:35:36,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:36,491 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 [2022-11-23 15:35:36,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:36,531 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 [2022-11-23 15:35:36,559 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 [2022-11-23 15:35:36,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:36,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:36,570 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 [2022-11-23 15:35:36,582 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 [2022-11-23 15:35:36,651 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-23 15:35:36,653 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 [2022-11-23 15:35:36,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:36,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:36,665 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 [2022-11-23 15:35:36,775 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 [2022-11-23 15:35:36,782 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 [2022-11-23 15:35:36,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:36,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:36,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:36,881 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:35:36,881 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 [2022-11-23 15:35:36,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:36,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:36,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:36,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:36,976 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-23 15:35:36,976 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 [2022-11-23 15:35:37,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:37,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:37,017 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 [2022-11-23 15:35:37,049 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-23 15:35:37,050 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 [2022-11-23 15:35:37,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:37,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:37,062 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 [2022-11-23 15:35:37,092 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 [2022-11-23 15:35:37,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:37,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:37,104 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 [2022-11-23 15:35:37,114 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 [2022-11-23 15:35:37,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:37,140 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 [2022-11-23 15:35:37,303 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 [2022-11-23 15:35:37,319 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 [2022-11-23 15:35:37,329 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 [2022-11-23 15:35:37,390 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 [2022-11-23 15:35:37,398 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 [2022-11-23 15:35:37,406 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 [2022-11-23 15:35:37,464 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 [2022-11-23 15:35:37,472 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 [2022-11-23 15:35:37,480 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 [2022-11-23 15:35:37,925 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:35:40,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [365814259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:40,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:35:40,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6, 5, 5] total 26 [2022-11-23 15:35:40,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968835431] [2022-11-23 15:35:40,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:40,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 15:35:40,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:40,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 15:35:40,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=505, Unknown=3, NotChecked=0, Total=650 [2022-11-23 15:35:40,963 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) [2022-11-23 15:35:42,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:42,785 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2022-11-23 15:35:42,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 15:35:42,786 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 [2022-11-23 15:35:42,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:42,786 INFO L225 Difference]: With dead ends: 101 [2022-11-23 15:35:42,787 INFO L226 Difference]: Without dead ends: 98 [2022-11-23 15:35:42,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 57 SyntacticMatches, 9 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=245, Invalid=808, Unknown=3, NotChecked=0, Total=1056 [2022-11-23 15:35:42,788 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 156 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:35:42,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 77 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 203 Invalid, 1 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:35:42,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-23 15:35:42,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 85. [2022-11-23 15:35:42,806 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) [2022-11-23 15:35:42,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 100 transitions. [2022-11-23 15:35:42,807 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 100 transitions. Word has length 28 [2022-11-23 15:35:42,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:42,807 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 100 transitions. [2022-11-23 15:35:42,807 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) [2022-11-23 15:35:42,808 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 100 transitions. [2022-11-23 15:35:42,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-23 15:35:42,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:42,808 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-23 15:35:42,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 15:35:43,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:35:43,017 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)] === [2022-11-23 15:35:43,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:43,018 INFO L85 PathProgramCache]: Analyzing trace with hash -26567715, now seen corresponding path program 1 times [2022-11-23 15:35:43,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:43,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117195007] [2022-11-23 15:35:43,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:43,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:43,223 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 15:35:43,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:43,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117195007] [2022-11-23 15:35:43,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117195007] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:35:43,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550410984] [2022-11-23 15:35:43,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:43,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:35:43,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:35:43,236 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:35:43,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 15:35:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:43,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:35:43,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:35:43,549 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 15:35:43,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:35:43,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550410984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:43,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:35:43,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 13 [2022-11-23 15:35:43,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858693437] [2022-11-23 15:35:43,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:43,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:35:43,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:43,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:35:43,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-23 15:35:43,551 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) [2022-11-23 15:35:43,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:43,666 INFO L93 Difference]: Finished difference Result 136 states and 158 transitions. [2022-11-23 15:35:43,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:35:43,667 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 [2022-11-23 15:35:43,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:43,667 INFO L225 Difference]: With dead ends: 136 [2022-11-23 15:35:43,668 INFO L226 Difference]: Without dead ends: 67 [2022-11-23 15:35:43,668 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 [2022-11-23 15:35:43,669 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 34 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:35:43,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 49 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:35:43,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-23 15:35:43,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2022-11-23 15:35:43,685 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) [2022-11-23 15:35:43,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2022-11-23 15:35:43,686 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 29 [2022-11-23 15:35:43,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:43,686 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2022-11-23 15:35:43,686 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) [2022-11-23 15:35:43,686 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2022-11-23 15:35:43,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 15:35:43,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:43,687 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:35:43,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 15:35:43,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-23 15:35:43,893 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)] === [2022-11-23 15:35:43,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:43,893 INFO L85 PathProgramCache]: Analyzing trace with hash -823493085, now seen corresponding path program 1 times [2022-11-23 15:35:43,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:43,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321763200] [2022-11-23 15:35:43,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:43,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:44,020 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 15:35:44,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:44,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321763200] [2022-11-23 15:35:44,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321763200] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:35:44,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028592253] [2022-11-23 15:35:44,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:44,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:35:44,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:35:44,022 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:35:44,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 15:35:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:44,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:35:44,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:35:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-23 15:35:44,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:35:44,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028592253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:44,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:35:44,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2022-11-23 15:35:44,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343908664] [2022-11-23 15:35:44,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:44,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:35:44,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:44,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:35:44,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:35:44,298 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) [2022-11-23 15:35:44,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:44,358 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2022-11-23 15:35:44,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:35:44,359 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 [2022-11-23 15:35:44,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:44,359 INFO L225 Difference]: With dead ends: 67 [2022-11-23 15:35:44,359 INFO L226 Difference]: Without dead ends: 66 [2022-11-23 15:35:44,360 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 [2022-11-23 15:35:44,360 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 33 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 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 [2022-11-23 15:35:44,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 34 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:35:44,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-23 15:35:44,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2022-11-23 15:35:44,376 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) [2022-11-23 15:35:44,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2022-11-23 15:35:44,377 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 30 [2022-11-23 15:35:44,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:44,377 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2022-11-23 15:35:44,377 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) [2022-11-23 15:35:44,377 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2022-11-23 15:35:44,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 15:35:44,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:44,378 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] [2022-11-23 15:35:44,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 15:35:44,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-23 15:35:44,584 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)] === [2022-11-23 15:35:44,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:44,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2052208996, now seen corresponding path program 1 times [2022-11-23 15:35:44,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:44,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717170979] [2022-11-23 15:35:44,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:44,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:44,662 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 15:35:44,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:44,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717170979] [2022-11-23 15:35:44,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717170979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:44,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:35:44,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:35:44,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794843244] [2022-11-23 15:35:44,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:44,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:35:44,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:44,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:35:44,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:35:44,665 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) [2022-11-23 15:35:44,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:44,710 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-11-23 15:35:44,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:35:44,711 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 [2022-11-23 15:35:44,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:44,711 INFO L225 Difference]: With dead ends: 63 [2022-11-23 15:35:44,711 INFO L226 Difference]: Without dead ends: 62 [2022-11-23 15:35:44,712 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 [2022-11-23 15:35:44,712 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 [2022-11-23 15:35:44,713 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] [2022-11-23 15:35:44,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-23 15:35:44,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-23 15:35:44,728 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) [2022-11-23 15:35:44,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2022-11-23 15:35:44,728 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 31 [2022-11-23 15:35:44,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:44,729 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2022-11-23 15:35:44,729 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) [2022-11-23 15:35:44,729 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2022-11-23 15:35:44,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-23 15:35:44,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:44,732 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] [2022-11-23 15:35:44,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-23 15:35:44,733 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)] === [2022-11-23 15:35:44,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:44,733 INFO L85 PathProgramCache]: Analyzing trace with hash -806030427, now seen corresponding path program 1 times [2022-11-23 15:35:44,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:44,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345959498] [2022-11-23 15:35:44,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:44,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:44,916 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-23 15:35:44,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:44,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345959498] [2022-11-23 15:35:44,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345959498] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:35:44,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973695278] [2022-11-23 15:35:44,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:44,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:35:44,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:35:44,919 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:35:44,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-23 15:35:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:45,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:35:45,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:35:45,237 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 15:35:45,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:35:45,286 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 15:35:45,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973695278] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:35:45,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [743977034] [2022-11-23 15:35:45,289 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-11-23 15:35:45,290 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:35:45,290 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:35:45,290 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:35:45,290 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:35:45,336 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:35:45,336 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 [2022-11-23 15:35:45,346 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 [2022-11-23 15:35:45,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:45,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:45,374 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 [2022-11-23 15:35:45,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:45,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:45,392 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 [2022-11-23 15:35:45,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:45,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:45,401 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 [2022-11-23 15:35:45,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:45,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:45,417 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 [2022-11-23 15:35:45,530 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-23 15:35:45,531 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 [2022-11-23 15:35:45,564 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-23 15:35:45,564 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 [2022-11-23 15:35:45,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:45,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:45,919 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-23 15:35:45,919 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 [2022-11-23 15:35:45,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:45,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:45,983 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-23 15:35:45,984 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 [2022-11-23 15:35:46,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,058 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 [2022-11-23 15:35:46,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:46,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:46,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:46,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:46,160 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-23 15:35:46,160 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 [2022-11-23 15:35:46,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,192 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 [2022-11-23 15:35:46,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:46,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:46,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:46,265 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-23 15:35:46,265 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 [2022-11-23 15:35:46,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,311 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-23 15:35:46,311 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 [2022-11-23 15:35:46,418 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 [2022-11-23 15:35:46,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:46,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,433 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 [2022-11-23 15:35:46,447 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 [2022-11-23 15:35:46,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,541 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 [2022-11-23 15:35:46,552 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 [2022-11-23 15:35:46,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,565 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 [2022-11-23 15:35:46,888 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 [2022-11-23 15:35:46,894 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 [2022-11-23 15:35:46,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:46,928 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:46,963 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-23 15:35:46,963 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 [2022-11-23 15:35:46,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:46,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:47,037 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:35:47,037 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 [2022-11-23 15:35:47,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,074 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 [2022-11-23 15:35:47,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,093 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 [2022-11-23 15:35:47,137 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-23 15:35:47,137 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 [2022-11-23 15:35:47,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,148 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 [2022-11-23 15:35:47,168 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 [2022-11-23 15:35:47,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,178 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 [2022-11-23 15:35:47,187 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 [2022-11-23 15:35:47,357 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 [2022-11-23 15:35:47,363 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 [2022-11-23 15:35:47,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:47,452 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:35:47,452 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 [2022-11-23 15:35:47,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:47,492 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:47,515 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-23 15:35:47,516 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 [2022-11-23 15:35:47,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,556 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 [2022-11-23 15:35:47,590 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-23 15:35:47,591 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 [2022-11-23 15:35:47,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,605 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 [2022-11-23 15:35:47,627 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 [2022-11-23 15:35:47,636 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 [2022-11-23 15:35:47,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,648 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 [2022-11-23 15:35:47,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:47,673 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 [2022-11-23 15:35:47,838 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 [2022-11-23 15:35:47,854 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 [2022-11-23 15:35:47,866 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 [2022-11-23 15:35:47,932 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 [2022-11-23 15:35:47,940 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 [2022-11-23 15:35:47,949 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 [2022-11-23 15:35:48,022 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 [2022-11-23 15:35:48,030 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 [2022-11-23 15:35:48,038 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 [2022-11-23 15:35:48,385 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:35:51,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [743977034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:51,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:35:51,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6, 5, 5] total 23 [2022-11-23 15:35:51,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425755695] [2022-11-23 15:35:51,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:51,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 15:35:51,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:51,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 15:35:51,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=428, Unknown=4, NotChecked=0, Total=552 [2022-11-23 15:35:51,625 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) [2022-11-23 15:35:52,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:35:52,366 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2022-11-23 15:35:52,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 15:35:52,367 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 [2022-11-23 15:35:52,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:35:52,368 INFO L225 Difference]: With dead ends: 74 [2022-11-23 15:35:52,368 INFO L226 Difference]: Without dead ends: 73 [2022-11-23 15:35:52,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 68 SyntacticMatches, 11 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=129, Invalid=467, Unknown=4, NotChecked=0, Total=600 [2022-11-23 15:35:52,369 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 87 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:35:52,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 43 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 200 Invalid, 1 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:35:52,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-23 15:35:52,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 64. [2022-11-23 15:35:52,386 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) [2022-11-23 15:35:52,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2022-11-23 15:35:52,387 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 32 [2022-11-23 15:35:52,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:35:52,387 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2022-11-23 15:35:52,388 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) [2022-11-23 15:35:52,388 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2022-11-23 15:35:52,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-23 15:35:52,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:35:52,388 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] [2022-11-23 15:35:52,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-23 15:35:52,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:35:52,602 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)] === [2022-11-23 15:35:52,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:35:52,602 INFO L85 PathProgramCache]: Analyzing trace with hash 709889470, now seen corresponding path program 1 times [2022-11-23 15:35:52,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:35:52,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599594514] [2022-11-23 15:35:52,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:52,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:35:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:52,715 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 15:35:52,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:35:52,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599594514] [2022-11-23 15:35:52,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599594514] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:35:52,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300759717] [2022-11-23 15:35:52,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:35:52,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:35:52,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:35:52,717 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:35:52,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-23 15:35:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:35:52,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:35:52,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:35:53,052 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-23 15:35:53,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:35:53,110 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-23 15:35:53,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300759717] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:35:53,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [530348590] [2022-11-23 15:35:53,112 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-11-23 15:35:53,112 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:35:53,113 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:35:53,113 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:35:53,113 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:35:53,158 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 15:35:53,159 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 [2022-11-23 15:35:53,199 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:35:53,199 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 [2022-11-23 15:35:53,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,233 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 [2022-11-23 15:35:53,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,247 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 [2022-11-23 15:35:53,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,264 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 [2022-11-23 15:35:53,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,274 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 [2022-11-23 15:35:53,353 INFO L321 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2022-11-23 15:35:53,353 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 [2022-11-23 15:35:53,415 INFO L321 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2022-11-23 15:35:53,416 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 [2022-11-23 15:35:53,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,652 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:53,796 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-23 15:35:53,797 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 [2022-11-23 15:35:53,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:53,870 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-23 15:35:53,870 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 [2022-11-23 15:35:53,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,906 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 [2022-11-23 15:35:53,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:53,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:53,923 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:54,021 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-23 15:35:54,021 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 [2022-11-23 15:35:54,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:54,051 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 [2022-11-23 15:35:54,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:54,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:54,071 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 [2022-11-23 15:35:54,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:54,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:54,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:54,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:54,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:54,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:54,158 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-23 15:35:54,159 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 [2022-11-23 15:35:54,277 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-23 15:35:54,278 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 [2022-11-23 15:35:54,289 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 [2022-11-23 15:35:54,302 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 [2022-11-23 15:35:54,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:54,457 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 [2022-11-23 15:35:54,468 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 21 treesize of output 13 [2022-11-23 15:35:54,481 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 [2022-11-23 15:35:54,746 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 [2022-11-23 15:35:54,751 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 [2022-11-23 15:35:54,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:54,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:54,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:54,842 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:35:54,843 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 [2022-11-23 15:35:54,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:54,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:54,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:54,868 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:54,902 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-23 15:35:54,903 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 [2022-11-23 15:35:54,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:54,927 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 [2022-11-23 15:35:54,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:54,947 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 [2022-11-23 15:35:55,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:55,010 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 [2022-11-23 15:35:55,043 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-23 15:35:55,043 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 [2022-11-23 15:35:55,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:55,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:55,053 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 [2022-11-23 15:35:55,081 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-23 15:35:55,081 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 [2022-11-23 15:35:55,088 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 [2022-11-23 15:35:55,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:55,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:55,102 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 [2022-11-23 15:35:55,183 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 [2022-11-23 15:35:55,191 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 [2022-11-23 15:35:55,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:55,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:55,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:55,269 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:35:55,269 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 [2022-11-23 15:35:55,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:55,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:55,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:55,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:35:55,320 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-23 15:35:55,321 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 [2022-11-23 15:35:55,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:55,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:55,356 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 [2022-11-23 15:35:55,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:55,377 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 [2022-11-23 15:35:55,418 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 [2022-11-23 15:35:55,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:55,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:55,429 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 [2022-11-23 15:35:55,439 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 [2022-11-23 15:35:55,462 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 [2022-11-23 15:35:55,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:55,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:35:55,472 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 [2022-11-23 15:35:55,480 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 [2022-11-23 15:35:55,675 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 [2022-11-23 15:35:55,688 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 [2022-11-23 15:35:55,712 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 [2022-11-23 15:35:55,771 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 15 treesize of output 1 [2022-11-23 15:35:55,777 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 [2022-11-23 15:35:55,787 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 [2022-11-23 15:35:55,831 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 [2022-11-23 15:35:55,839 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 [2022-11-23 15:35:55,846 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 [2022-11-23 15:35:56,489 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:35:59,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [530348590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:35:59,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:35:59,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [4, 5, 5] total 27 [2022-11-23 15:35:59,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719893282] [2022-11-23 15:35:59,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:35:59,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:35:59,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:35:59,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:35:59,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=590, Unknown=2, NotChecked=0, Total=702 [2022-11-23 15:35:59,678 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) [2022-11-23 15:36:02,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:36:02,367 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2022-11-23 15:36:02,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 15:36:02,368 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 [2022-11-23 15:36:02,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:36:02,368 INFO L225 Difference]: With dead ends: 77 [2022-11-23 15:36:02,369 INFO L226 Difference]: Without dead ends: 48 [2022-11-23 15:36:02,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 76 SyntacticMatches, 7 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=235, Invalid=1169, Unknown=2, NotChecked=0, Total=1406 [2022-11-23 15:36:02,370 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 74 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:36:02,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 48 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 256 Invalid, 1 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:36:02,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-23 15:36:02,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-11-23 15:36:02,382 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) [2022-11-23 15:36:02,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2022-11-23 15:36:02,382 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 35 [2022-11-23 15:36:02,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:36:02,383 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2022-11-23 15:36:02,383 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) [2022-11-23 15:36:02,383 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2022-11-23 15:36:02,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-23 15:36:02,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:36:02,384 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] [2022-11-23 15:36:02,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-23 15:36:02,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:36:02,590 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)] === [2022-11-23 15:36:02,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:36:02,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1804875442, now seen corresponding path program 1 times [2022-11-23 15:36:02,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:36:02,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556655564] [2022-11-23 15:36:02,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:02,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:36:02,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:02,772 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-23 15:36:02,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:36:02,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556655564] [2022-11-23 15:36:02,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556655564] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:36:02,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943416371] [2022-11-23 15:36:02,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:02,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:36:02,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:36:02,774 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:36:02,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-23 15:36:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:03,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:36:03,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:36:03,124 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-23 15:36:03,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:36:03,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943416371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:36:03,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:36:03,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-23 15:36:03,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130315924] [2022-11-23 15:36:03,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:36:03,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:36:03,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:36:03,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:36:03,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:36:03,126 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) [2022-11-23 15:36:03,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:36:03,227 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2022-11-23 15:36:03,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:36:03,228 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 [2022-11-23 15:36:03,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:36:03,228 INFO L225 Difference]: With dead ends: 48 [2022-11-23 15:36:03,228 INFO L226 Difference]: Without dead ends: 46 [2022-11-23 15:36:03,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-23 15:36:03,229 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 28 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:36:03,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 35 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:36:03,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-23 15:36:03,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-23 15:36:03,241 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) [2022-11-23 15:36:03,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2022-11-23 15:36:03,241 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 37 [2022-11-23 15:36:03,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:36:03,242 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2022-11-23 15:36:03,243 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) [2022-11-23 15:36:03,243 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2022-11-23 15:36:03,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-23 15:36:03,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:36:03,244 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] [2022-11-23 15:36:03,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-23 15:36:03,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-23 15:36:03,450 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)] === [2022-11-23 15:36:03,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:36:03,450 INFO L85 PathProgramCache]: Analyzing trace with hash -2070941731, now seen corresponding path program 1 times [2022-11-23 15:36:03,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:36:03,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429675889] [2022-11-23 15:36:03,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:03,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:36:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:03,645 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-23 15:36:03,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:36:03,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429675889] [2022-11-23 15:36:03,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429675889] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:36:03,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955099175] [2022-11-23 15:36:03,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:03,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:36:03,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:36:03,647 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:36:03,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-23 15:36:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:03,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:36:03,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:36:03,931 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-23 15:36:03,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:36:04,008 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-23 15:36:04,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955099175] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:36:04,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [433088331] [2022-11-23 15:36:04,011 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-23 15:36:04,011 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:36:04,011 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:36:04,012 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:36:04,012 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:36:04,058 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 15:36:04,058 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 [2022-11-23 15:36:04,105 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:36:04,105 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 [2022-11-23 15:36:04,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,143 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 [2022-11-23 15:36:04,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,164 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 [2022-11-23 15:36:04,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,175 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 [2022-11-23 15:36:04,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,195 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 [2022-11-23 15:36:04,295 INFO L321 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2022-11-23 15:36:04,296 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 [2022-11-23 15:36:04,369 INFO L321 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2022-11-23 15:36:04,370 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 [2022-11-23 15:36:04,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,610 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:04,773 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-23 15:36:04,773 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 [2022-11-23 15:36:04,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:04,846 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-23 15:36:04,847 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 [2022-11-23 15:36:04,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,882 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 [2022-11-23 15:36:04,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,913 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 [2022-11-23 15:36:04,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:04,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:04,929 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:04,982 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-23 15:36:04,982 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 [2022-11-23 15:36:05,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:05,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:05,005 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 [2022-11-23 15:36:05,191 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 [2022-11-23 15:36:05,200 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 [2022-11-23 15:36:05,214 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 [2022-11-23 15:36:05,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:05,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:05,329 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 [2022-11-23 15:36:05,344 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 [2022-11-23 15:36:05,382 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 [2022-11-23 15:36:05,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:05,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:05,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:05,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:05,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:05,436 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-23 15:36:05,436 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 [2022-11-23 15:36:05,701 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 [2022-11-23 15:36:05,707 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 [2022-11-23 15:36:05,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:05,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:05,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:05,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:05,778 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-23 15:36:05,778 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 [2022-11-23 15:36:05,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:05,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:05,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:05,839 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:36:05,839 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 [2022-11-23 15:36:05,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:05,864 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 [2022-11-23 15:36:05,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:05,880 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 [2022-11-23 15:36:05,922 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-23 15:36:05,922 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 [2022-11-23 15:36:05,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:05,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:05,935 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 [2022-11-23 15:36:05,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:05,975 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 [2022-11-23 15:36:06,029 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-23 15:36:06,029 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 [2022-11-23 15:36:06,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:06,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:06,040 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 [2022-11-23 15:36:06,052 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 [2022-11-23 15:36:06,131 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 [2022-11-23 15:36:06,136 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 [2022-11-23 15:36:06,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:06,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:06,168 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:06,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:06,204 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-23 15:36:06,205 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 [2022-11-23 15:36:06,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:06,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:06,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:06,266 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:36:06,266 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 [2022-11-23 15:36:06,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:06,290 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 [2022-11-23 15:36:06,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:06,307 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 [2022-11-23 15:36:06,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:06,354 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 [2022-11-23 15:36:06,373 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 [2022-11-23 15:36:06,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:06,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:06,384 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 [2022-11-23 15:36:06,394 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 [2022-11-23 15:36:06,424 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 [2022-11-23 15:36:06,432 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 [2022-11-23 15:36:06,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:06,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:06,442 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 [2022-11-23 15:36:06,669 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 [2022-11-23 15:36:06,678 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 [2022-11-23 15:36:06,693 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 [2022-11-23 15:36:06,847 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 [2022-11-23 15:36:06,855 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 [2022-11-23 15:36:06,865 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 [2022-11-23 15:36:06,993 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 [2022-11-23 15:36:07,000 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 [2022-11-23 15:36:07,007 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 [2022-11-23 15:36:07,333 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:36:11,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [433088331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:36:11,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:36:11,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6, 6, 6] total 27 [2022-11-23 15:36:11,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681438700] [2022-11-23 15:36:11,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:36:11,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 15:36:11,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:36:11,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 15:36:11,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=618, Unknown=2, NotChecked=0, Total=756 [2022-11-23 15:36:11,215 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) [2022-11-23 15:36:13,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:36:13,132 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2022-11-23 15:36:13,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 15:36:13,135 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 [2022-11-23 15:36:13,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:36:13,136 INFO L225 Difference]: With dead ends: 65 [2022-11-23 15:36:13,136 INFO L226 Difference]: Without dead ends: 63 [2022-11-23 15:36:13,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 90 SyntacticMatches, 12 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=259, Invalid=1071, Unknown=2, NotChecked=0, Total=1332 [2022-11-23 15:36:13,137 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 99 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:36:13,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 31 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 217 Invalid, 1 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:36:13,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-23 15:36:13,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2022-11-23 15:36:13,148 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) [2022-11-23 15:36:13,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2022-11-23 15:36:13,148 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 41 [2022-11-23 15:36:13,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:36:13,148 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2022-11-23 15:36:13,148 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) [2022-11-23 15:36:13,148 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2022-11-23 15:36:13,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-23 15:36:13,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:36:13,149 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] [2022-11-23 15:36:13,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-23 15:36:13,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-23 15:36:13,353 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)] === [2022-11-23 15:36:13,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:36:13,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1780230954, now seen corresponding path program 1 times [2022-11-23 15:36:13,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:36:13,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255524978] [2022-11-23 15:36:13,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:13,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:36:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:13,522 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-23 15:36:13,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:36:13,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255524978] [2022-11-23 15:36:13,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255524978] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:36:13,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728670390] [2022-11-23 15:36:13,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:36:13,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:36:13,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:36:13,525 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:36:13,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-23 15:36:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:36:13,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 15:36:13,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:36:13,847 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-23 15:36:13,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:36:13,909 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-23 15:36:13,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728670390] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:36:13,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1095588296] [2022-11-23 15:36:13,912 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-23 15:36:13,912 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:36:13,913 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:36:13,913 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:36:13,913 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:36:13,959 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:36:13,960 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 [2022-11-23 15:36:13,971 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 [2022-11-23 15:36:13,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:13,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,000 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 [2022-11-23 15:36:14,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,015 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 [2022-11-23 15:36:14,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,033 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 [2022-11-23 15:36:14,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,044 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 [2022-11-23 15:36:14,166 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-23 15:36:14,166 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 [2022-11-23 15:36:14,201 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-23 15:36:14,201 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 [2022-11-23 15:36:14,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,551 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-23 15:36:14,552 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 [2022-11-23 15:36:14,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,627 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-23 15:36:14,648 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 [2022-11-23 15:36:14,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,692 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 [2022-11-23 15:36:14,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,725 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 [2022-11-23 15:36:14,739 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:14,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:14,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,744 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:14,745 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:14,808 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-23 15:36:14,808 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 [2022-11-23 15:36:14,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:14,830 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:14,831 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:14,832 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:14,886 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-23 15:36:14,887 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 [2022-11-23 15:36:15,035 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 [2022-11-23 15:36:15,046 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 [2022-11-23 15:36:15,057 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:15,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,059 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 [2022-11-23 15:36:15,140 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-23 15:36:15,140 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 [2022-11-23 15:36:15,151 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 [2022-11-23 15:36:15,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,163 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 [2022-11-23 15:36:15,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,271 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-23 15:36:15,272 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 [2022-11-23 15:36:15,639 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 [2022-11-23 15:36:15,646 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 [2022-11-23 15:36:15,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:15,725 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:36:15,726 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 [2022-11-23 15:36:15,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:15,758 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:15,784 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-23 15:36:15,785 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 [2022-11-23 15:36:15,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,819 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 [2022-11-23 15:36:15,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,853 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 [2022-11-23 15:36:15,880 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 [2022-11-23 15:36:15,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,891 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 [2022-11-23 15:36:15,900 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 [2022-11-23 15:36:15,958 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-23 15:36:15,959 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 [2022-11-23 15:36:15,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:15,971 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 [2022-11-23 15:36:16,058 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 [2022-11-23 15:36:16,065 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 [2022-11-23 15:36:16,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:16,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:16,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:16,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:16,138 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-23 15:36:16,138 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 [2022-11-23 15:36:16,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:16,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:16,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:36:16,223 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-23 15:36:16,223 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 [2022-11-23 15:36:16,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:16,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:16,260 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 [2022-11-23 15:36:16,309 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-23 15:36:16,310 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 [2022-11-23 15:36:16,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:16,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:16,323 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 [2022-11-23 15:36:16,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:16,351 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 [2022-11-23 15:36:16,398 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-23 15:36:16,398 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 [2022-11-23 15:36:16,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:16,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:36:16,410 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 [2022-11-23 15:36:16,422 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 [2022-11-23 15:36:16,523 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 [2022-11-23 15:36:16,537 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 [2022-11-23 15:36:16,546 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 [2022-11-23 15:36:16,709 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 [2022-11-23 15:36:16,720 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 [2022-11-23 15:36:16,728 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 [2022-11-23 15:36:16,847 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 [2022-11-23 15:36:16,854 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 [2022-11-23 15:36:16,863 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 [2022-11-23 15:36:17,391 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:36:20,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1095588296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:36:20,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:36:20,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [8, 8, 8] total 25 [2022-11-23 15:36:20,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106255127] [2022-11-23 15:36:20,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:36:20,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:36:20,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:36:20,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:36:20,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=503, Unknown=2, NotChecked=0, Total=600 [2022-11-23 15:36:20,192 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) [2022-11-23 15:36:22,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:36:22,164 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2022-11-23 15:36:22,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 15:36:22,165 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 [2022-11-23 15:36:22,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:36:22,165 INFO L225 Difference]: With dead ends: 52 [2022-11-23 15:36:22,165 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:36:22,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 98 SyntacticMatches, 18 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=199, Invalid=921, Unknown=2, NotChecked=0, Total=1122 [2022-11-23 15:36:22,166 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 75 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 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, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:36:22,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 6 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 256 Invalid, 1 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 15:36:22,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:36:22,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:36:22,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:36:22,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:36:22,168 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2022-11-23 15:36:22,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:36:22,168 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:36:22,168 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) [2022-11-23 15:36:22,168 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:36:22,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:36:22,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2022-11-23 15:36:22,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2022-11-23 15:36:22,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2022-11-23 15:36:22,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2022-11-23 15:36:22,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2022-11-23 15:36:22,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2022-11-23 15:36:22,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2022-11-23 15:36:22,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2022-11-23 15:36:22,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2022-11-23 15:36:22,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2022-11-23 15:36:22,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2022-11-23 15:36:22,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2022-11-23 15:36:22,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2022-11-23 15:36:22,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2022-11-23 15:36:22,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-23 15:36:22,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:36:22,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:36:33,420 INFO L902 garLoopResultBuilder]: At program point myexitENTRY(lines 572 574) the Hoare annotation is: true [2022-11-23 15:36:33,420 INFO L902 garLoopResultBuilder]: At program point L573(line 573) the Hoare annotation is: true [2022-11-23 15:36:33,421 INFO L899 garLoopResultBuilder]: For program point myexitEXIT(lines 572 574) no Hoare annotation was computed. [2022-11-23 15:36:33,421 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 630) no Hoare annotation was computed. [2022-11-23 15:36:33,421 INFO L899 garLoopResultBuilder]: For program point L630(line 630) no Hoare annotation was computed. [2022-11-23 15:36:33,421 INFO L899 garLoopResultBuilder]: For program point L630-1(line 630) no Hoare annotation was computed. [2022-11-23 15:36:33,421 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 591) no Hoare annotation was computed. [2022-11-23 15:36:33,421 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 589 591) no Hoare annotation was computed. [2022-11-23 15:36:33,421 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 629) no Hoare annotation was computed. [2022-11-23 15:36:33,421 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 599) no Hoare annotation was computed. [2022-11-23 15:36:33,422 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 15:36:33,422 INFO L902 garLoopResultBuilder]: At program point L590(line 590) the Hoare annotation is: true [2022-11-23 15:36:33,422 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 634) no Hoare annotation was computed. [2022-11-23 15:36:33,422 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 599) no Hoare annotation was computed. [2022-11-23 15:36:33,422 INFO L899 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2022-11-23 15:36:33,422 INFO L899 garLoopResultBuilder]: For program point L599-1(line 599) no Hoare annotation was computed. [2022-11-23 15:36:33,422 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 634) no Hoare annotation was computed. [2022-11-23 15:36:33,422 INFO L899 garLoopResultBuilder]: For program point L633-3(line 633) no Hoare annotation was computed. [2022-11-23 15:36:33,422 INFO L899 garLoopResultBuilder]: For program point L633-4(line 633) no Hoare annotation was computed. [2022-11-23 15:36:33,423 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))) [2022-11-23 15:36:33,423 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 613) no Hoare annotation was computed. [2022-11-23 15:36:33,423 INFO L902 garLoopResultBuilder]: At program point L642(lines 624 643) the Hoare annotation is: true [2022-11-23 15:36:33,423 INFO L899 garLoopResultBuilder]: For program point L634(line 634) no Hoare annotation was computed. [2022-11-23 15:36:33,423 INFO L899 garLoopResultBuilder]: For program point L634-1(line 634) no Hoare annotation was computed. [2022-11-23 15:36:33,423 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 613) no Hoare annotation was computed. [2022-11-23 15:36:33,424 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))) [2022-11-23 15:36:33,424 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 620) no Hoare annotation was computed. [2022-11-23 15:36:33,424 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))) [2022-11-23 15:36:33,424 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 633) no Hoare annotation was computed. [2022-11-23 15:36:33,425 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))) [2022-11-23 15:36:33,425 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:36:33,425 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 620) no Hoare annotation was computed. [2022-11-23 15:36:33,425 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 633) no Hoare annotation was computed. [2022-11-23 15:36:33,425 INFO L899 garLoopResultBuilder]: For program point L620(line 620) no Hoare annotation was computed. [2022-11-23 15:36:33,425 INFO L899 garLoopResultBuilder]: For program point L620-1(line 620) no Hoare annotation was computed. [2022-11-23 15:36:33,425 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)) [2022-11-23 15:36:33,425 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 630) no Hoare annotation was computed. [2022-11-23 15:36:33,426 INFO L902 garLoopResultBuilder]: At program point L604-2(lines 604 608) the Hoare annotation is: true [2022-11-23 15:36:33,426 INFO L899 garLoopResultBuilder]: For program point L629-3(line 629) no Hoare annotation was computed. [2022-11-23 15:36:33,426 INFO L899 garLoopResultBuilder]: For program point L629-4(line 629) no Hoare annotation was computed. [2022-11-23 15:36:33,426 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))) [2022-11-23 15:36:33,426 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 629) no Hoare annotation was computed. [2022-11-23 15:36:33,426 INFO L899 garLoopResultBuilder]: For program point L613(line 613) no Hoare annotation was computed. [2022-11-23 15:36:33,426 INFO L899 garLoopResultBuilder]: For program point L613-1(line 613) no Hoare annotation was computed. [2022-11-23 15:36:33,430 INFO L444 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] [2022-11-23 15:36:33,432 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:36:33,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:36:33 BoogieIcfgContainer [2022-11-23 15:36:33,494 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:36:33,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:36:33,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:36:33,495 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:36:33,496 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:35:01" (3/4) ... [2022-11-23 15:36:33,498 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:36:33,504 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2022-11-23 15:36:33,510 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-23 15:36:33,513 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-23 15:36:33,513 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 15:36:33,513 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:36:33,540 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((0 <= #in~head && 0 <= index) && 0 <= s) && 1 <= data) && (new_head == 0 || head == 0)) && 2 <= unknown-#in~len-unknown) && 1 <= i) && \result <= 0) && 0 <= unknown-#in~index-unknown) && index <= 1) && data <= 1) && 0 <= head) && #in~head <= 0) && data == 1) && 0 <= len) && head <= 0) && unknown-#in~len-unknown <= 2) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && #NULL == 0) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && i <= 1) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((0 <= s && 1 <= data) && (new_head == 0 || head == 0)) && i == 0) && 2 <= unknown-#in~len-unknown) && \result <= 0) && data <= 1) && head == \result) && data == 1) && 0 <= len) && unknown-#in~len-unknown <= 2) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && #NULL == 0) && unknown-#in~data-unknown <= 1) && head <= 0) && \result == s) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0)) || ((((((((((((((((((((((((((((0 <= #in~head && 0 <= s) && 1 <= data) && (new_head == 0 || head == 0)) && 2 <= unknown-#in~len-unknown) && \result <= 0) && 0 <= unknown-#in~index-unknown) && index <= 1) && i <= 2) && data <= 1) && #in~head <= 0) && 2 <= i) && data == 1) && 0 <= len) && unknown-#in~len-unknown <= 2) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && #NULL == 0) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) [2022-11-23 15:36:33,541 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((0 <= #in~head && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && 1 <= data) && i < 2147483649) && i == 0) && 2 <= unknown-#in~len-unknown) && \result <= 0) && 0 <= unknown-#in~index-unknown) && index <= 1) && len <= 2) && data <= 1) && #in~head <= 0) && data == 1) && 0 <= len) && unknown-#in~len-unknown <= 2) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((((((((((0 <= #in~head && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && #in~head <= 0) && 1 <= data) && expected <= 4) && i < 2147483649) && 2 <= unknown-#in~len-unknown) && 1 <= i) && \result <= 0) && unknown-#in~index-unknown <= 2) && 0 <= unknown-#in~index-unknown) && index <= 1) && len <= 2) && i <= 2) && data <= 1) && index <= 2) && #in~head <= 0) && data == 1) && 0 <= #in~head) && 0 <= len) && unknown-#in~len-unknown <= 2) && 0 <= unknown-#in~index-unknown) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0)) || (((((((((((((((((((((((((((((((((((((((0 <= #in~head && 0 <= index) && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && #in~head <= 0) && 1 <= data) && i < 2147483649) && 2 <= unknown-#in~len-unknown) && 1 <= i) && i <= 2147483647) && \result <= 0) && 0 <= unknown-#in~index-unknown) && index <= 1) && len <= 2) && 0 <= index) && index <= 0) && data <= 1) && 0 <= head) && #in~head <= 0) && data == 1) && 0 <= #in~head) && 0 <= len) && 2 <= \result) && head <= 0) && unknown-#in~len-unknown <= 2) && 0 <= unknown-#in~index-unknown) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) [2022-11-23 15:36:33,542 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((0 <= #in~head && 0 <= s) && 1 <= data) && 2 <= unknown-#in~len-unknown) && 1 <= i) && \result <= 0) && 0 <= unknown-#in~index-unknown) && index <= 1) && data <= 1) && #in~head <= 0) && 0 <= len) && unknown-#in~len-unknown <= 2) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && #NULL == 0) && ((new_head == 0 && data == 1) || (data == 1 && head == 0))) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= unknown-#in~data-unknown) && i < len) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((0 <= #in~head && 0 <= s) && 1 <= data) && i == 0) && 2 <= unknown-#in~len-unknown) && \result <= 0) && 0 <= unknown-#in~index-unknown) && data <= 1) && 0 <= head) && #in~head <= 0) && 0 <= len) && head <= 0) && unknown-#in~len-unknown <= 2) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && #NULL == 0) && ((new_head == 0 && data == 1) || (data == 1 && head == 0))) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && index == 0) && #NULL == 0) [2022-11-23 15:36:33,543 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((((0 <= #in~head && 0 <= s) && #in~head <= 0) && 1 <= data) && expected <= 4) && (new_head == 0 || head == 0)) && 2 <= unknown-#in~len-unknown) && 1 <= i) && \result <= 0) && unknown-#in~index-unknown <= 2) && 0 <= unknown-#in~index-unknown) && index <= 1) && data <= 1) && index <= 2) && #in~head <= 0) && data == 1) && 0 <= #in~head) && 0 <= len) && unknown-#in~len-unknown <= 2) && 0 <= unknown-#in~index-unknown) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && #NULL == 0) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((((((((((((0 <= #in~head && 0 <= index) && 0 <= s) && #in~head <= 0) && 1 <= data) && expected <= 4) && (new_head == 0 || head == 0)) && 2 <= unknown-#in~len-unknown) && \result <= 0) && unknown-#in~index-unknown <= 2) && 0 <= unknown-#in~index-unknown) && index <= 1) && data <= 1) && index <= 2) && 0 <= i) && 0 <= head) && #in~head <= 0) && data == 1) && 0 <= #in~head) && 0 <= len) && head <= 0) && unknown-#in~len-unknown <= 2) && 0 <= unknown-#in~index-unknown) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && #NULL == 0) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0)) || (((((((((((((((((((((((((((((((((((0 <= #in~head && 1 <= data) && (new_head == 0 || head == 0)) && 2 <= unknown-#in~len-unknown) && \result <= 0) && #in~head == s) && #in~head == head) && 0 <= unknown-#in~index-unknown) && #in~head == head) && index <= 1) && len + i == expected) && data <= 1) && index == unknown-#in~index-unknown) && #in~head <= 0) && data == 1) && 0 <= #in~head) && 0 <= len) && unknown-#in~len-unknown <= 2) && index == 0) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && #NULL == 0) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #in~head == s) && #NULL == 0) [2022-11-23 15:36:33,544 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((((((((0 <= #in~head && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && #in~head <= 0) && 1 <= data) && expected <= 4) && 2 <= unknown-#in~len-unknown) && 1 <= i) && \result <= 0) && unknown-#in~index-unknown <= 2) && unknown-#memory_int-unknown[head][head] == \result) && 0 <= unknown-#in~index-unknown) && 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) && #in~head <= 0) && data == 1) && 0 <= #in~head) && aux-dll_get_data_at(s, i)-aux <= 2147483647) && 0 <= len) && unknown-#in~len-unknown <= 2) && 0 <= unknown-#in~index-unknown) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((((((((((((((((0 <= #in~head && 0 <= index) && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && #in~head <= 0) && 1 <= data) && expected <= 4) && 2 <= unknown-#in~len-unknown) && \result <= 0) && unknown-#in~index-unknown <= 2) && unknown-#memory_int-unknown[head][head] == \result) && 0 <= unknown-#in~index-unknown) && 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) && #in~head <= 0) && data == 1) && 0 <= #in~head) && aux-dll_get_data_at(s, i)-aux <= 2147483647) && 0 <= len) && head <= 0) && unknown-#in~len-unknown <= 2) && 0 <= unknown-#in~index-unknown) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0)) || ((((((((((((((((((((((((((((((((((((((((0 <= #in~head && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 1 <= data) && 2 <= unknown-#in~len-unknown) && \result <= 0) && #in~head == s) && unknown-#memory_int-unknown[head][head] == \result) && #in~head == head) && 0 <= unknown-#in~index-unknown) && #in~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 == unknown-#in~index-unknown) && #in~head <= 0) && data == 1) && 0 <= #in~head) && aux-dll_get_data_at(s, i)-aux <= 2147483647) && 0 <= len) && unknown-#in~len-unknown <= 2) && 0 <= unknown-#in~index-unknown) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #in~head == s) && #NULL == 0) [2022-11-23 15:36:33,573 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:36:33,575 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:36:33,575 INFO L158 Benchmark]: Toolchain (without parser) took 93618.27ms. Allocated memory was 134.2MB in the beginning and 465.6MB in the end (delta: 331.4MB). Free memory was 103.5MB in the beginning and 302.8MB in the end (delta: -199.2MB). Peak memory consumption was 134.3MB. Max. memory is 16.1GB. [2022-11-23 15:36:33,575 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 111.1MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:36:33,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 513.25ms. Allocated memory is still 134.2MB. Free memory was 103.1MB in the beginning and 85.9MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 15:36:33,576 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.55ms. Allocated memory is still 134.2MB. Free memory was 85.8MB in the beginning and 83.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:36:33,576 INFO L158 Benchmark]: Boogie Preprocessor took 36.14ms. Allocated memory is still 134.2MB. Free memory was 83.3MB in the beginning and 82.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:36:33,576 INFO L158 Benchmark]: RCFGBuilder took 782.33ms. Allocated memory is still 134.2MB. Free memory was 81.6MB in the beginning and 61.5MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 15:36:33,576 INFO L158 Benchmark]: TraceAbstraction took 92150.92ms. Allocated memory was 134.2MB in the beginning and 465.6MB in the end (delta: 331.4MB). Free memory was 60.7MB in the beginning and 307.0MB in the end (delta: -246.3MB). Peak memory consumption was 241.5MB. Max. memory is 16.1GB. [2022-11-23 15:36:33,577 INFO L158 Benchmark]: Witness Printer took 80.28ms. Allocated memory is still 465.6MB. Free memory was 307.0MB in the beginning and 302.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:36:33,578 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 111.1MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 513.25ms. Allocated memory is still 134.2MB. Free memory was 103.1MB in the beginning and 85.9MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.55ms. Allocated memory is still 134.2MB. Free memory was 85.8MB in the beginning and 83.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.14ms. Allocated memory is still 134.2MB. Free memory was 83.3MB in the beginning and 82.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 782.33ms. Allocated memory is still 134.2MB. Free memory was 81.6MB in the beginning and 61.5MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 92150.92ms. Allocated memory was 134.2MB in the beginning and 465.6MB in the end (delta: 331.4MB). Free memory was 60.7MB in the beginning and 307.0MB in the end (delta: -246.3MB). Peak memory consumption was 241.5MB. Max. memory is 16.1GB. * Witness Printer took 80.28ms. Allocated memory is still 465.6MB. Free memory was 307.0MB in the beginning and 302.8MB 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: 92.0s, OverallIterations: 23, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 1188 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1188 mSDsluCounter, 1473 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1051 mSDsCounter, 123 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2259 IncrementalHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 123 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, 2401 ImplicationChecksByTransitivity, 34.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=15, InterpolantAutomatonStates: 187, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 23 MinimizatonAttempts, 192 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 13 PreInvPairs, 41 NumberOfFragments, 1670 HoareAnnotationTreeSize, 13 FomulaSimplifications, 59201 FormulaSimplificationTreeSizeReduction, 6.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 139406 FormulaSimplificationTreeSizeReductionInter, 5.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.9s 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: 23.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 7, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 130, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 454, TOOLS_POST_TIME: 21.7s, 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: 21.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 1.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 731, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 42, DOMAIN_JOIN_TIME: 0.5s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 27, DOMAIN_WIDEN_TIME: 0.4s, 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: 16.8s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 16.8s, 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 <= #in~head && 0 <= index) && 0 <= s) && 1 <= data) && (new_head == 0 || head == 0)) && 2 <= unknown-#in~len-unknown) && 1 <= i) && \result <= 0) && 0 <= unknown-#in~index-unknown) && index <= 1) && data <= 1) && 0 <= head) && #in~head <= 0) && data == 1) && 0 <= len) && head <= 0) && unknown-#in~len-unknown <= 2) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && #NULL == 0) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && i <= 1) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((0 <= s && 1 <= data) && (new_head == 0 || head == 0)) && i == 0) && 2 <= unknown-#in~len-unknown) && \result <= 0) && data <= 1) && head == \result) && data == 1) && 0 <= len) && unknown-#in~len-unknown <= 2) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && #NULL == 0) && unknown-#in~data-unknown <= 1) && head <= 0) && \result == s) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0)) || ((((((((((((((((((((((((((((0 <= #in~head && 0 <= s) && 1 <= data) && (new_head == 0 || head == 0)) && 2 <= unknown-#in~len-unknown) && \result <= 0) && 0 <= unknown-#in~index-unknown) && index <= 1) && i <= 2) && data <= 1) && #in~head <= 0) && 2 <= i) && data == 1) && 0 <= len) && unknown-#in~len-unknown <= 2) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && #NULL == 0) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((0 <= #in~head && 0 <= s) && #in~head <= 0) && 1 <= data) && expected <= 4) && (new_head == 0 || head == 0)) && 2 <= unknown-#in~len-unknown) && 1 <= i) && \result <= 0) && unknown-#in~index-unknown <= 2) && 0 <= unknown-#in~index-unknown) && index <= 1) && data <= 1) && index <= 2) && #in~head <= 0) && data == 1) && 0 <= #in~head) && 0 <= len) && unknown-#in~len-unknown <= 2) && 0 <= unknown-#in~index-unknown) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && #NULL == 0) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((((((((((((0 <= #in~head && 0 <= index) && 0 <= s) && #in~head <= 0) && 1 <= data) && expected <= 4) && (new_head == 0 || head == 0)) && 2 <= unknown-#in~len-unknown) && \result <= 0) && unknown-#in~index-unknown <= 2) && 0 <= unknown-#in~index-unknown) && index <= 1) && data <= 1) && index <= 2) && 0 <= i) && 0 <= head) && #in~head <= 0) && data == 1) && 0 <= #in~head) && 0 <= len) && head <= 0) && unknown-#in~len-unknown <= 2) && 0 <= unknown-#in~index-unknown) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && #NULL == 0) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0)) || (((((((((((((((((((((((((((((((((((0 <= #in~head && 1 <= data) && (new_head == 0 || head == 0)) && 2 <= unknown-#in~len-unknown) && \result <= 0) && #in~head == s) && #in~head == head) && 0 <= unknown-#in~index-unknown) && #in~head == head) && index <= 1) && len + i == expected) && data <= 1) && index == unknown-#in~index-unknown) && #in~head <= 0) && data == 1) && 0 <= #in~head) && 0 <= len) && unknown-#in~len-unknown <= 2) && index == 0) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && #NULL == 0) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #in~head == s) && #NULL == 0) - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: (((((((((((((((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0)) && 1 <= data) && 2 <= unknown-#in~len-unknown) && len <= 2) && data <= 1) && data == 1) && 0 <= len) && unknown-#in~len-unknown <= 2) && 1 <= unknown-#in~data-unknown) && len == 2) && unknown-#in~data-unknown <= 1) && head <= 0) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((0 <= #in~head && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && 1 <= data) && i < 2147483649) && i == 0) && 2 <= unknown-#in~len-unknown) && \result <= 0) && 0 <= unknown-#in~index-unknown) && index <= 1) && len <= 2) && data <= 1) && #in~head <= 0) && data == 1) && 0 <= len) && unknown-#in~len-unknown <= 2) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((((((((((0 <= #in~head && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && #in~head <= 0) && 1 <= data) && expected <= 4) && i < 2147483649) && 2 <= unknown-#in~len-unknown) && 1 <= i) && \result <= 0) && unknown-#in~index-unknown <= 2) && 0 <= unknown-#in~index-unknown) && index <= 1) && len <= 2) && i <= 2) && data <= 1) && index <= 2) && #in~head <= 0) && data == 1) && 0 <= #in~head) && 0 <= len) && unknown-#in~len-unknown <= 2) && 0 <= unknown-#in~index-unknown) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0)) || (((((((((((((((((((((((((((((((((((((((0 <= #in~head && 0 <= index) && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && #in~head <= 0) && 1 <= data) && i < 2147483649) && 2 <= unknown-#in~len-unknown) && 1 <= i) && i <= 2147483647) && \result <= 0) && 0 <= unknown-#in~index-unknown) && index <= 1) && len <= 2) && 0 <= index) && index <= 0) && data <= 1) && 0 <= head) && #in~head <= 0) && data == 1) && 0 <= #in~head) && 0 <= len) && 2 <= \result) && head <= 0) && unknown-#in~len-unknown <= 2) && 0 <= unknown-#in~index-unknown) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && 2 <= unknown-#in~data-unknown) && 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 <= #in~head && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && #in~head <= 0) && 1 <= data) && expected <= 4) && 2 <= unknown-#in~len-unknown) && 1 <= i) && \result <= 0) && unknown-#in~index-unknown <= 2) && unknown-#memory_int-unknown[head][head] == \result) && 0 <= unknown-#in~index-unknown) && 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) && #in~head <= 0) && data == 1) && 0 <= #in~head) && aux-dll_get_data_at(s, i)-aux <= 2147483647) && 0 <= len) && unknown-#in~len-unknown <= 2) && 0 <= unknown-#in~index-unknown) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((((((((((((((((0 <= #in~head && 0 <= index) && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 0 <= s) && #in~head <= 0) && 1 <= data) && expected <= 4) && 2 <= unknown-#in~len-unknown) && \result <= 0) && unknown-#in~index-unknown <= 2) && unknown-#memory_int-unknown[head][head] == \result) && 0 <= unknown-#in~index-unknown) && 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) && #in~head <= 0) && data == 1) && 0 <= #in~head) && aux-dll_get_data_at(s, i)-aux <= 2147483647) && 0 <= len) && head <= 0) && unknown-#in~len-unknown <= 2) && 0 <= unknown-#in~index-unknown) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0)) || ((((((((((((((((((((((((((((((((((((((((0 <= #in~head && ((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0))) && 1 <= data) && 2 <= unknown-#in~len-unknown) && \result <= 0) && #in~head == s) && unknown-#memory_int-unknown[head][head] == \result) && #in~head == head) && 0 <= unknown-#in~index-unknown) && #in~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 == unknown-#in~index-unknown) && #in~head <= 0) && data == 1) && 0 <= #in~head) && aux-dll_get_data_at(s, i)-aux <= 2147483647) && 0 <= len) && unknown-#in~len-unknown <= 2) && 0 <= unknown-#in~index-unknown) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= expected) && 2 <= new_data) && i <= 1) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #in~head == s) && #NULL == 0) - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((0 <= #in~head && 0 <= s) && 1 <= data) && 2 <= unknown-#in~len-unknown) && 1 <= i) && \result <= 0) && 0 <= unknown-#in~index-unknown) && index <= 1) && data <= 1) && #in~head <= 0) && 0 <= len) && unknown-#in~len-unknown <= 2) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && #NULL == 0) && ((new_head == 0 && data == 1) || (data == 1 && head == 0))) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= unknown-#in~data-unknown) && i < len) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((0 <= #in~head && 0 <= s) && 1 <= data) && i == 0) && 2 <= unknown-#in~len-unknown) && \result <= 0) && 0 <= unknown-#in~index-unknown) && data <= 1) && 0 <= head) && #in~head <= 0) && 0 <= len) && head <= 0) && unknown-#in~len-unknown <= 2) && len <= 0) && 1 <= unknown-#in~data-unknown) && len == 2) && #NULL == 0) && ((new_head == 0 && data == 1) || (data == 1 && head == 0))) && unknown-#in~data-unknown <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= unknown-#in~data-unknown) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && index == 0) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-11-23 15:36:33,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_882ff986-881d-4c6b-abba-4d37dc4a31dd/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE