./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2n_update_all.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --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-e04fb08 [2022-11-16 20:29:43,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:29:43,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:29:43,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:29:43,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:29:43,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:29:43,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:29:43,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:29:43,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:29:43,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:29:43,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:29:43,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:29:43,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:29:43,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:29:43,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:29:43,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:29:43,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:29:43,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:29:43,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:29:43,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:29:43,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:29:43,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:29:43,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:29:43,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:29:43,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:29:43,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:29:43,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:29:43,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:29:43,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:29:43,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:29:43,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:29:43,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:29:43,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:29:43,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:29:43,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:29:43,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:29:43,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:29:43,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:29:43,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:29:43,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:29:43,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:29:43,439 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 20:29:43,477 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:29:43,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:29:43,478 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:29:43,478 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:29:43,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:29:43,479 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:29:43,480 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:29:43,480 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:29:43,480 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:29:43,480 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:29:43,481 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:29:43,481 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:29:43,482 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:29:43,482 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:29:43,482 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:29:43,482 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:29:43,483 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:29:43,483 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:29:43,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:29:43,484 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 20:29:43,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:29:43,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 20:29:43,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:29:43,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:29:43,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:29:43,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:29:43,487 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 20:29:43,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:29:43,487 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:29:43,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:29:43,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:29:43,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:29:43,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:29:43,489 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:29:43,489 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:29:43,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:29:43,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:29:43,489 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:29:43,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:29:43,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:29:43,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:29:43,490 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_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 [2022-11-16 20:29:43,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:29:43,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:29:43,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:29:43,848 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:29:43,849 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:29:43,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/list-simple/dll2n_update_all.i [2022-11-16 20:29:43,913 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/data/4827c125b/f7fe8d8673a74d5dbfba8e76c613b785/FLAGa7062ad95 [2022-11-16 20:29:44,526 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:29:44,527 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/sv-benchmarks/c/list-simple/dll2n_update_all.i [2022-11-16 20:29:44,538 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/data/4827c125b/f7fe8d8673a74d5dbfba8e76c613b785/FLAGa7062ad95 [2022-11-16 20:29:44,822 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/data/4827c125b/f7fe8d8673a74d5dbfba8e76c613b785 [2022-11-16 20:29:44,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:29:44,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:29:44,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:29:44,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:29:44,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:29:44,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:29:44" (1/1) ... [2022-11-16 20:29:44,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba485bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:29:44, skipping insertion in model container [2022-11-16 20:29:44,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:29:44" (1/1) ... [2022-11-16 20:29:44,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:29:44,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:29:45,375 WARN L229 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_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2022-11-16 20:29:45,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:29:45,400 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:29:45,443 WARN L229 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_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2022-11-16 20:29:45,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:29:45,469 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:29:45,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:29:45 WrapperNode [2022-11-16 20:29:45,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:29:45,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:29:45,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:29:45,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:29:45,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:29:45" (1/1) ... [2022-11-16 20:29:45,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:29:45" (1/1) ... [2022-11-16 20:29:45,555 INFO L138 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 111 [2022-11-16 20:29:45,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:29:45,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:29:45,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:29:45,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:29:45,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:29:45" (1/1) ... [2022-11-16 20:29:45,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:29:45" (1/1) ... [2022-11-16 20:29:45,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:29:45" (1/1) ... [2022-11-16 20:29:45,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:29:45" (1/1) ... [2022-11-16 20:29:45,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:29:45" (1/1) ... [2022-11-16 20:29:45,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:29:45" (1/1) ... [2022-11-16 20:29:45,605 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:29:45" (1/1) ... [2022-11-16 20:29:45,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:29:45" (1/1) ... [2022-11-16 20:29:45,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:29:45,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:29:45,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:29:45,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:29:45,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:29:45" (1/1) ... [2022-11-16 20:29:45,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:29:45,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:29:45,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:29:45,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:29:45,704 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-11-16 20:29:45,704 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-11-16 20:29:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 20:29:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 20:29:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 20:29:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:29:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 20:29:45,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 20:29:45,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 20:29:45,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 20:29:45,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:29:45,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:29:45,869 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:29:45,871 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:29:45,926 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-11-16 20:29:46,090 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:29:46,146 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:29:46,146 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 20:29:46,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:29:46 BoogieIcfgContainer [2022-11-16 20:29:46,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:29:46,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:29:46,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:29:46,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:29:46,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:29:44" (1/3) ... [2022-11-16 20:29:46,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5620b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:29:46, skipping insertion in model container [2022-11-16 20:29:46,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:29:45" (2/3) ... [2022-11-16 20:29:46,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5620b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:29:46, skipping insertion in model container [2022-11-16 20:29:46,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:29:46" (3/3) ... [2022-11-16 20:29:46,159 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_update_all.i [2022-11-16 20:29:46,179 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:29:46,179 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 20:29:46,250 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:29:46,257 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;@7394edb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:29:46,257 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 20:29:46,261 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 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) [2022-11-16 20:29:46,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 20:29:46,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:29:46,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:29:46,269 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:29:46,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:29:46,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1570243634, now seen corresponding path program 1 times [2022-11-16 20:29:46,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:29:46,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344481425] [2022-11-16 20:29:46,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:29:46,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:29:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:29:46,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:29:46,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:29:46,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344481425] [2022-11-16 20:29:46,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344481425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:29:46,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:29:46,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:29:46,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631053574] [2022-11-16 20:29:46,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:29:46,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:29:46,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:29:46,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:29:46,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:29:46,578 INFO L87 Difference]: Start difference. First operand has 17 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 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 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:29:46,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:29:46,679 INFO L93 Difference]: Finished difference Result 31 states and 45 transitions. [2022-11-16 20:29:46,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:29:46,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2022-11-16 20:29:46,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:29:46,688 INFO L225 Difference]: With dead ends: 31 [2022-11-16 20:29:46,689 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 20:29:46,696 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 [2022-11-16 20:29:46,701 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:29:46,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 24 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:29:46,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 20:29:46,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-16 20:29:46,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:29:46,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2022-11-16 20:29:46,735 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 16 transitions. Word has length 7 [2022-11-16 20:29:46,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:29:46,735 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-16 20:29:46,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:29:46,736 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2022-11-16 20:29:46,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 20:29:46,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:29:46,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:29:46,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:29:46,737 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:29:46,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:29:46,738 INFO L85 PathProgramCache]: Analyzing trace with hash 299858783, now seen corresponding path program 1 times [2022-11-16 20:29:46,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:29:46,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686361688] [2022-11-16 20:29:46,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:29:46,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:29:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:29:46,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:29:46,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:29:46,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686361688] [2022-11-16 20:29:46,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686361688] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:29:46,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407125072] [2022-11-16 20:29:46,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:29:46,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:29:46,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:29:46,991 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:29:47,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 20:29:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:29:47,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:29:47,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:29:47,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:29:47,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:29:47,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:29:47,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407125072] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:29:47,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1136976818] [2022-11-16 20:29:47,243 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-16 20:29:47,243 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:29:47,246 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:29:47,252 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:29:47,253 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:29:47,371 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 20:29:47,372 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 [2022-11-16 20:29:47,427 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:29:47,428 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 [2022-11-16 20:29:47,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:47,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:47,505 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 [2022-11-16 20:29:47,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:47,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:47,531 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 [2022-11-16 20:29:47,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:47,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:47,548 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 [2022-11-16 20:29:47,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:47,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:47,577 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 [2022-11-16 20:29:47,797 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-16 20:29:47,798 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 [2022-11-16 20:29:47,855 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-16 20:29:47,856 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 [2022-11-16 20:29:48,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:48,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:48,732 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-16 20:29:48,733 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 315 treesize of output 293 [2022-11-16 20:29:48,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:48,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:48,872 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 20:29:48,873 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 319 treesize of output 296 [2022-11-16 20:29:48,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:48,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:48,934 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 308 treesize of output 299 [2022-11-16 20:29:48,966 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:48,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:48,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:48,970 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:48,971 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:49,064 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-16 20:29:49,065 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 455 treesize of output 483 [2022-11-16 20:29:49,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:49,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:49,130 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 326 treesize of output 317 [2022-11-16 20:29:49,182 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:49,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:49,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:49,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:49,256 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-16 20:29:49,257 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 448 treesize of output 472 [2022-11-16 20:29:49,644 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 142 treesize of output 78 [2022-11-16 20:29:49,659 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:49,660 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 32 treesize of output 17 [2022-11-16 20:29:49,674 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 47 treesize of output 31 [2022-11-16 20:29:49,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:49,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:49,980 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 757 treesize of output 704 [2022-11-16 20:29:50,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:50,004 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 684 treesize of output 670 [2022-11-16 20:29:50,086 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 [2022-11-16 20:29:50,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:50,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:50,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:50,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:50,146 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 20:29:50,147 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 720 treesize of output 667 [2022-11-16 20:29:50,308 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 [2022-11-16 20:29:50,318 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 [2022-11-16 20:29:50,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:50,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:50,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:50,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:50,417 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-16 20:29:50,417 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 [2022-11-16 20:29:50,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:50,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:50,460 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:50,501 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-16 20:29:50,502 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 [2022-11-16 20:29:50,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:50,551 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 [2022-11-16 20:29:50,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:50,605 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 [2022-11-16 20:29:50,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:50,644 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 [2022-11-16 20:29:50,669 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-16 20:29:50,670 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 [2022-11-16 20:29:50,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:50,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:50,685 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 [2022-11-16 20:29:50,756 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 [2022-11-16 20:29:50,773 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 25 treesize of output 3 [2022-11-16 20:29:50,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:50,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:50,798 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 [2022-11-16 20:29:50,890 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 [2022-11-16 20:29:50,898 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 [2022-11-16 20:29:50,919 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:29:51,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1136976818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:29:51,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:29:51,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 7 [2022-11-16 20:29:51,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315331186] [2022-11-16 20:29:51,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:29:51,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 20:29:51,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:29:51,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 20:29:51,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 20:29:51,197 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:29:51,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:29:51,287 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2022-11-16 20:29:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 20:29:51,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-11-16 20:29:51,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:29:51,289 INFO L225 Difference]: With dead ends: 19 [2022-11-16 20:29:51,289 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 20:29:51,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 20:29:51,291 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:29:51,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 12 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:29:51,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 20:29:51,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2022-11-16 20:29:51,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:29:51,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2022-11-16 20:29:51,302 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 10 [2022-11-16 20:29:51,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:29:51,306 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-11-16 20:29:51,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:29:51,307 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2022-11-16 20:29:51,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 20:29:51,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:29:51,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:29:51,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 20:29:51,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:29:51,514 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:29:51,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:29:51,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1448453533, now seen corresponding path program 1 times [2022-11-16 20:29:51,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:29:51,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424052385] [2022-11-16 20:29:51,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:29:51,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:29:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:29:51,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 20:29:51,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:29:51,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424052385] [2022-11-16 20:29:51,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424052385] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:29:51,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557966224] [2022-11-16 20:29:51,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:29:51,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:29:51,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:29:51,636 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:29:51,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 20:29:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:29:51,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:29:51,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:29:51,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 20:29:51,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:29:51,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 20:29:51,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557966224] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:29:51,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1539872556] [2022-11-16 20:29:51,787 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 20:29:51,787 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:29:51,787 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:29:51,788 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:29:51,788 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:29:51,831 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 20:29:51,832 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 [2022-11-16 20:29:51,876 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:29:51,876 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 [2022-11-16 20:29:51,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:51,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:51,949 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 [2022-11-16 20:29:51,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:51,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:51,972 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 [2022-11-16 20:29:51,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:51,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:51,985 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 [2022-11-16 20:29:52,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:52,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:52,011 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 [2022-11-16 20:29:52,136 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-16 20:29:52,136 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 [2022-11-16 20:29:52,180 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-16 20:29:52,181 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 [2022-11-16 20:29:52,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:52,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:52,557 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-16 20:29:52,557 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 235 treesize of output 221 [2022-11-16 20:29:52,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:52,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:52,630 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 20:29:52,631 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 239 treesize of output 224 [2022-11-16 20:29:52,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:52,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:52,698 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 228 treesize of output 219 [2022-11-16 20:29:52,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:52,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:52,740 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 228 treesize of output 219 [2022-11-16 20:29:52,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:52,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:52,762 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:52,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:52,835 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-16 20:29:52,836 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 375 treesize of output 403 [2022-11-16 20:29:52,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:52,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:52,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:52,862 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 440 treesize of output 470 [2022-11-16 20:29:52,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:52,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:52,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:52,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:52,921 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 20:29:52,921 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 367 treesize of output 322 [2022-11-16 20:29:53,064 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-16 20:29:53,065 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 190 treesize of output 125 [2022-11-16 20:29:53,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 64 [2022-11-16 20:29:53,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:53,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:53,106 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 28 treesize of output 11 [2022-11-16 20:29:53,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:53,359 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 566 treesize of output 513 [2022-11-16 20:29:53,372 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 [2022-11-16 20:29:53,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:53,387 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 493 treesize of output 479 [2022-11-16 20:29:53,482 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 [2022-11-16 20:29:53,489 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 [2022-11-16 20:29:53,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:53,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:53,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:53,528 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:53,565 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-16 20:29:53,565 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 [2022-11-16 20:29:53,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:53,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:53,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:53,630 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-16 20:29:53,631 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 [2022-11-16 20:29:53,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:53,659 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 [2022-11-16 20:29:53,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:53,678 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 [2022-11-16 20:29:53,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:53,704 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 [2022-11-16 20:29:53,765 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 [2022-11-16 20:29:53,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:53,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:53,778 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 [2022-11-16 20:29:53,789 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 [2022-11-16 20:29:53,807 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 [2022-11-16 20:29:53,816 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 [2022-11-16 20:29:53,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:53,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:53,828 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 [2022-11-16 20:29:53,976 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 [2022-11-16 20:29:53,983 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 [2022-11-16 20:29:54,025 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 [2022-11-16 20:29:54,043 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 [2022-11-16 20:29:54,053 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 [2022-11-16 20:29:54,098 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 [2022-11-16 20:29:54,105 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 [2022-11-16 20:29:54,118 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 [2022-11-16 20:29:54,160 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 [2022-11-16 20:29:54,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-16 20:29:54,183 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 [2022-11-16 20:29:54,252 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:29:55,274 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '278#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= (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|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |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_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (not (= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_dll_get_data_at_#res#1|)) (= |#NULL.base| 0))' at error location [2022-11-16 20:29:55,274 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 20:29:55,275 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:29:55,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2022-11-16 20:29:55,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505464511] [2022-11-16 20:29:55,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 20:29:55,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 20:29:55,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:29:55,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 20:29:55,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-16 20:29:55,276 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:29:55,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:29:55,329 INFO L93 Difference]: Finished difference Result 24 states and 32 transitions. [2022-11-16 20:29:55,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 20:29:55,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-16 20:29:55,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:29:55,330 INFO L225 Difference]: With dead ends: 24 [2022-11-16 20:29:55,331 INFO L226 Difference]: Without dead ends: 16 [2022-11-16 20:29:55,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-16 20:29:55,332 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:29:55,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 20 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:29:55,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-16 20:29:55,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-16 20:29:55,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 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) [2022-11-16 20:29:55,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2022-11-16 20:29:55,338 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 12 [2022-11-16 20:29:55,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:29:55,338 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2022-11-16 20:29:55,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:29:55,338 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-11-16 20:29:55,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 20:29:55,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:29:55,339 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:29:55,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 20:29:55,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:29:55,546 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:29:55,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:29:55,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1813339504, now seen corresponding path program 2 times [2022-11-16 20:29:55,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:29:55,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280253047] [2022-11-16 20:29:55,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:29:55,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:29:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:29:55,811 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 20:29:55,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:29:55,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280253047] [2022-11-16 20:29:55,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280253047] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:29:55,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289710993] [2022-11-16 20:29:55,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 20:29:55,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:29:55,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:29:55,813 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:29:55,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 20:29:55,941 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 20:29:55,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:29:55,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 20:29:55,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:29:55,987 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:29:55,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:29:56,016 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:29:56,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289710993] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:29:56,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [24878928] [2022-11-16 20:29:56,019 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 20:29:56,019 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:29:56,019 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:29:56,019 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:29:56,020 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:29:56,058 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 20:29:56,059 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 [2022-11-16 20:29:56,095 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:29:56,096 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 [2022-11-16 20:29:56,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:56,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:56,137 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 [2022-11-16 20:29:56,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:56,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:56,147 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 [2022-11-16 20:29:56,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:56,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:56,167 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 [2022-11-16 20:29:56,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:56,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:56,189 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 [2022-11-16 20:29:56,276 INFO L321 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2022-11-16 20:29:56,276 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 [2022-11-16 20:29:56,345 INFO L321 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2022-11-16 20:29:56,346 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 [2022-11-16 20:29:56,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:56,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:56,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:56,821 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-16 20:29:56,822 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 235 treesize of output 221 [2022-11-16 20:29:56,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:56,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:56,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:56,919 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-16 20:29:56,920 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 239 treesize of output 224 [2022-11-16 20:29:56,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:56,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:56,965 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 228 treesize of output 219 [2022-11-16 20:29:57,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:57,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:57,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:57,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:57,143 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-16 20:29:57,143 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 375 treesize of output 398 [2022-11-16 20:29:57,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:57,183 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 306 treesize of output 297 [2022-11-16 20:29:57,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:57,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:57,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:57,206 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 440 treesize of output 475 [2022-11-16 20:29:57,494 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 121 treesize of output 65 [2022-11-16 20:29:57,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:57,507 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 27 treesize of output 17 [2022-11-16 20:29:57,524 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 39 treesize of output 23 [2022-11-16 20:29:57,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:57,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:57,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:57,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:57,574 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-16 20:29:57,574 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 565 treesize of output 520 [2022-11-16 20:29:57,682 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-16 20:29:57,682 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 657 treesize of output 572 [2022-11-16 20:29:57,698 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 554 treesize of output 430 [2022-11-16 20:29:57,717 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 516 treesize of output 512 [2022-11-16 20:29:57,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 20:29:57,827 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 [2022-11-16 20:29:57,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:57,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:57,870 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:57,871 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:57,913 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-16 20:29:57,913 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 [2022-11-16 20:29:57,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:57,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:57,951 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:29:58,011 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-16 20:29:58,011 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 [2022-11-16 20:29:58,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:58,052 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 [2022-11-16 20:29:58,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:58,075 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 [2022-11-16 20:29:58,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:58,105 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 [2022-11-16 20:29:58,129 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-16 20:29:58,130 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 [2022-11-16 20:29:58,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:58,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:58,143 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 [2022-11-16 20:29:58,192 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 [2022-11-16 20:29:58,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:58,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:29:58,203 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 [2022-11-16 20:29:58,214 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 [2022-11-16 20:29:58,280 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 [2022-11-16 20:29:58,287 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 [2022-11-16 20:29:58,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-16 20:29:58,338 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 [2022-11-16 20:29:58,350 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 [2022-11-16 20:29:58,389 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 [2022-11-16 20:29:58,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 20:29:58,403 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 [2022-11-16 20:29:58,447 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 [2022-11-16 20:29:58,455 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 [2022-11-16 20:29:58,464 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 [2022-11-16 20:29:58,516 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:29:59,413 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '443#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= (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|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |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_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (not (= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_dll_get_data_at_#res#1|)) (= |#NULL.base| 0))' at error location [2022-11-16 20:29:59,413 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 20:29:59,413 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:29:59,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-11-16 20:29:59,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149269802] [2022-11-16 20:29:59,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 20:29:59,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 20:29:59,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:29:59,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 20:29:59,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2022-11-16 20:29:59,415 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 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) [2022-11-16 20:29:59,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:29:59,529 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2022-11-16 20:29:59,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 20:29:59,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 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 15 [2022-11-16 20:29:59,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:29:59,531 INFO L225 Difference]: With dead ends: 34 [2022-11-16 20:29:59,531 INFO L226 Difference]: Without dead ends: 29 [2022-11-16 20:29:59,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2022-11-16 20:29:59,532 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 54 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:29:59,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 21 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:29:59,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-16 20:29:59,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 18. [2022-11-16 20:29:59,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 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) [2022-11-16 20:29:59,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2022-11-16 20:29:59,540 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 15 [2022-11-16 20:29:59,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:29:59,540 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-11-16 20:29:59,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 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) [2022-11-16 20:29:59,540 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2022-11-16 20:29:59,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 20:29:59,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:29:59,541 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:29:59,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-16 20:29:59,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:29:59,747 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:29:59,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:29:59,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2110536562, now seen corresponding path program 3 times [2022-11-16 20:29:59,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:29:59,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093154506] [2022-11-16 20:29:59,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:29:59,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:29:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:29:59,940 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 20:29:59,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:29:59,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093154506] [2022-11-16 20:29:59,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093154506] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:29:59,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711344150] [2022-11-16 20:29:59,941 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 20:29:59,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:29:59,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:29:59,942 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:29:59,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 20:30:00,073 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 20:30:00,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:30:00,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:30:00,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:30:00,103 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:30:00,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:30:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:30:00,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711344150] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:30:00,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1894335501] [2022-11-16 20:30:00,131 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 20:30:00,132 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:30:00,132 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:30:00,132 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:30:00,132 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:30:00,175 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:30:00,175 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 [2022-11-16 20:30:00,187 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 [2022-11-16 20:30:00,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:00,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:00,220 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 [2022-11-16 20:30:00,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:00,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:00,242 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 [2022-11-16 20:30:00,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:00,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:00,260 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 [2022-11-16 20:30:00,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:00,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:00,278 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 [2022-11-16 20:30:00,376 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-16 20:30:00,377 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 [2022-11-16 20:30:00,414 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-16 20:30:00,415 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 [2022-11-16 20:30:00,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:00,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:00,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:00,771 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-16 20:30:00,772 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 243 treesize of output 229 [2022-11-16 20:30:00,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:00,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:00,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:00,848 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:00,855 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 20:30:00,856 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 247 treesize of output 232 [2022-11-16 20:30:00,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:00,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:00,901 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 236 treesize of output 227 [2022-11-16 20:30:00,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:00,918 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:00,919 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:01,028 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-16 20:30:01,029 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 383 treesize of output 406 [2022-11-16 20:30:01,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:01,062 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 314 treesize of output 305 [2022-11-16 20:30:01,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:01,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:01,083 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 448 treesize of output 483 [2022-11-16 20:30:01,277 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-16 20:30:01,278 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 214 treesize of output 157 [2022-11-16 20:30:01,289 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 137 treesize of output 101 [2022-11-16 20:30:01,302 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 39 treesize of output 19 [2022-11-16 20:30:01,380 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 94 treesize of output 60 [2022-11-16 20:30:01,389 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 60 treesize of output 36 [2022-11-16 20:30:01,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 19 [2022-11-16 20:30:01,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:01,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:01,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:01,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:01,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:01,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:01,454 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 20:30:01,455 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 612 treesize of output 567 [2022-11-16 20:30:01,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 20:30:01,691 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 [2022-11-16 20:30:01,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:01,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:01,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:01,799 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-16 20:30:01,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 189 [2022-11-16 20:30:01,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:01,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:01,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:01,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:01,859 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-16 20:30:01,860 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 [2022-11-16 20:30:01,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:01,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:01,902 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 [2022-11-16 20:30:01,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:01,925 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 [2022-11-16 20:30:01,966 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-16 20:30:01,967 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 [2022-11-16 20:30:01,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:01,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:01,977 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 [2022-11-16 20:30:02,001 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 [2022-11-16 20:30:02,008 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 [2022-11-16 20:30:02,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:02,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:02,018 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 [2022-11-16 20:30:02,097 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 [2022-11-16 20:30:02,103 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 [2022-11-16 20:30:02,150 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 [2022-11-16 20:30:02,159 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 [2022-11-16 20:30:02,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 20:30:02,232 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 [2022-11-16 20:30:02,246 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 [2022-11-16 20:30:02,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-16 20:30:02,315 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 [2022-11-16 20:30:02,323 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 [2022-11-16 20:30:02,337 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 [2022-11-16 20:30:02,411 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:30:03,455 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '642#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= (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|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |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_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (not (= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_dll_get_data_at_#res#1|)) (= |#NULL.base| 0))' at error location [2022-11-16 20:30:03,455 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 20:30:03,455 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:30:03,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-16 20:30:03,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484818680] [2022-11-16 20:30:03,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 20:30:03,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 20:30:03,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:30:03,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 20:30:03,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2022-11-16 20:30:03,457 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 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) [2022-11-16 20:30:03,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:30:03,677 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2022-11-16 20:30:03,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 20:30:03,677 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 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 17 [2022-11-16 20:30:03,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:30:03,678 INFO L225 Difference]: With dead ends: 33 [2022-11-16 20:30:03,678 INFO L226 Difference]: Without dead ends: 26 [2022-11-16 20:30:03,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2022-11-16 20:30:03,680 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 34 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:30:03,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 34 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:30:03,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-16 20:30:03,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 19. [2022-11-16 20:30:03,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 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) [2022-11-16 20:30:03,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2022-11-16 20:30:03,688 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 17 [2022-11-16 20:30:03,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:30:03,689 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-11-16 20:30:03,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 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) [2022-11-16 20:30:03,689 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-11-16 20:30:03,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 20:30:03,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:30:03,690 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:30:03,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 20:30:03,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:30:03,895 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:30:03,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:30:03,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1814988096, now seen corresponding path program 1 times [2022-11-16 20:30:03,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:30:03,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570272453] [2022-11-16 20:30:03,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:30:03,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:30:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:30:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:30:05,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:30:05,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570272453] [2022-11-16 20:30:05,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570272453] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:30:05,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163243876] [2022-11-16 20:30:05,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:30:05,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:30:05,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:30:05,237 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:30:05,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 20:30:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:30:05,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 89 conjunts are in the unsatisfiable core [2022-11-16 20:30:05,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:30:05,431 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 [2022-11-16 20:30:05,509 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 20:30:05,509 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 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-16 20:30:05,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 20:30:05,577 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 20:30:05,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 41 [2022-11-16 20:30:05,584 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 10 treesize of output 9 [2022-11-16 20:30:05,737 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 [2022-11-16 20:30:05,743 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 35 treesize of output 33 [2022-11-16 20:30:05,868 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:05,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 33 treesize of output 15 [2022-11-16 20:30:05,920 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 14 treesize of output 16 [2022-11-16 20:30:06,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 10 [2022-11-16 20:30:06,089 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:30:06,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:30:06,179 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_650 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_650) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) |c_ULTIMATE.start_main_~len~0#1|)) (forall ((v_ArrVal_650 (Array Int Int))) (<= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_650) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)))) is different from false [2022-11-16 20:30:06,361 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_dll_update_at_~head#1.base|) |c_ULTIMATE.start_dll_update_at_~head#1.offset| |c_ULTIMATE.start_dll_update_at_~data#1|))) (.cse1 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (and (forall ((v_ArrVal_649 Int) (v_ArrVal_650 (Array Int Int))) (<= (select (select (store .cse0 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store .cse1 |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_649)) |c_ULTIMATE.start_main_~s~0#1.base|) .cse2) v_ArrVal_650) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) |c_ULTIMATE.start_main_~len~0#1|)) (forall ((v_ArrVal_649 Int) (v_ArrVal_650 (Array Int Int))) (<= |c_ULTIMATE.start_main_~len~0#1| (select (select (store .cse0 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store .cse1 |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_649)) |c_ULTIMATE.start_main_~s~0#1.base|) .cse2) v_ArrVal_650) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|))))) is different from false [2022-11-16 20:30:10,617 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:30:10,618 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 78 [2022-11-16 20:30:10,648 INFO L321 Elim1Store]: treesize reduction 10, result has 70.6 percent of original size [2022-11-16 20:30:10,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 86 [2022-11-16 20:30:10,674 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:30:10,674 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 1 case distinctions, treesize of input 7 treesize of output 6 [2022-11-16 20:30:10,706 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:30:10,707 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 42 [2022-11-16 20:30:10,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 78 treesize of output 66 [2022-11-16 20:30:10,721 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 33 treesize of output 31 [2022-11-16 20:30:10,726 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 31 treesize of output 29 [2022-11-16 20:30:10,747 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:30:10,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 40 [2022-11-16 20:30:10,754 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 8 treesize of output 4 [2022-11-16 20:30:10,870 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-11-16 20:30:10,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163243876] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:30:10,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1284608826] [2022-11-16 20:30:10,872 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 20:30:10,873 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:30:10,873 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:30:10,873 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:30:10,873 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:30:10,916 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 20:30:10,916 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 [2022-11-16 20:30:10,959 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:30:10,959 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 [2022-11-16 20:30:10,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:10,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:10,993 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 [2022-11-16 20:30:11,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:11,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:11,017 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 [2022-11-16 20:30:11,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:11,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:11,029 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 [2022-11-16 20:30:11,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:11,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:11,050 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 [2022-11-16 20:30:11,138 INFO L321 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2022-11-16 20:30:11,139 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 [2022-11-16 20:30:11,242 INFO L321 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2022-11-16 20:30:11,243 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 [2022-11-16 20:30:11,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:11,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:11,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:11,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:11,816 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-16 20:30:11,816 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 323 treesize of output 301 [2022-11-16 20:30:11,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:11,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:11,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:11,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:11,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:11,915 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-16 20:30:11,916 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 327 treesize of output 304 [2022-11-16 20:30:11,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:11,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:11,962 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 316 treesize of output 307 [2022-11-16 20:30:11,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:11,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:12,001 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 316 treesize of output 307 [2022-11-16 20:30:12,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:12,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:12,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:12,095 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-16 20:30:12,096 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 463 treesize of output 481 [2022-11-16 20:30:12,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:12,119 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:12,121 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 534 treesize of output 569 [2022-11-16 20:30:12,489 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 168 treesize of output 104 [2022-11-16 20:30:12,500 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 104 treesize of output 68 [2022-11-16 20:30:12,511 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 45 treesize of output 25 [2022-11-16 20:30:12,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:12,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:12,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:12,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:12,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:12,592 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-16 20:30:12,593 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 804 treesize of output 751 [2022-11-16 20:30:12,686 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-16 20:30:12,686 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 899 treesize of output 800 [2022-11-16 20:30:12,706 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 782 treesize of output 646 [2022-11-16 20:30:12,730 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 763 treesize of output 733 [2022-11-16 20:30:12,849 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 [2022-11-16 20:30:12,858 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 [2022-11-16 20:30:12,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:12,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:12,894 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:12,955 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-16 20:30:12,955 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 [2022-11-16 20:30:12,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:12,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:12,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:12,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:13,024 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-16 20:30:13,024 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 [2022-11-16 20:30:13,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:13,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:13,068 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 [2022-11-16 20:30:13,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:13,091 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 [2022-11-16 20:30:13,123 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-16 20:30:13,123 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 [2022-11-16 20:30:13,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:13,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:13,138 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 [2022-11-16 20:30:13,161 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-16 20:30:13,162 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 [2022-11-16 20:30:13,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:13,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:13,196 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 [2022-11-16 20:30:13,291 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 [2022-11-16 20:30:13,296 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 [2022-11-16 20:30:13,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-16 20:30:13,351 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 [2022-11-16 20:30:13,362 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 [2022-11-16 20:30:13,431 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 [2022-11-16 20:30:13,438 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 [2022-11-16 20:30:13,447 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 [2022-11-16 20:30:13,528 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 [2022-11-16 20:30:13,536 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 [2022-11-16 20:30:13,546 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 [2022-11-16 20:30:13,588 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:30:14,944 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '887#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= (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|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |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_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (not (= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_dll_get_data_at_#res#1|)) (= |#NULL.base| 0))' at error location [2022-11-16 20:30:14,944 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 20:30:14,944 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:30:14,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 39 [2022-11-16 20:30:14,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454221758] [2022-11-16 20:30:14,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 20:30:14,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-16 20:30:14,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:30:14,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-16 20:30:14,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1792, Unknown=22, NotChecked=174, Total=2162 [2022-11-16 20:30:14,947 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand has 39 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 39 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) [2022-11-16 20:30:16,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:30:16,403 INFO L93 Difference]: Finished difference Result 52 states and 68 transitions. [2022-11-16 20:30:16,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 20:30:16,405 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 39 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-16 20:30:16,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:30:16,406 INFO L225 Difference]: With dead ends: 52 [2022-11-16 20:30:16,406 INFO L226 Difference]: Without dead ends: 50 [2022-11-16 20:30:16,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=402, Invalid=3006, Unknown=22, NotChecked=230, Total=3660 [2022-11-16 20:30:16,409 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 167 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 216 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 20:30:16,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 104 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 377 Invalid, 0 Unknown, 216 Unchecked, 0.6s Time] [2022-11-16 20:30:16,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-16 20:30:16,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 27. [2022-11-16 20:30:16,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:30:16,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2022-11-16 20:30:16,424 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 18 [2022-11-16 20:30:16,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:30:16,424 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2022-11-16 20:30:16,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 39 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) [2022-11-16 20:30:16,425 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-11-16 20:30:16,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 20:30:16,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:30:16,425 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:30:16,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 20:30:16,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 20:30:16,632 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:30:16,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:30:16,632 INFO L85 PathProgramCache]: Analyzing trace with hash -280268398, now seen corresponding path program 2 times [2022-11-16 20:30:16,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:30:16,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739185348] [2022-11-16 20:30:16,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:30:16,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:30:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:30:16,709 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 20:30:16,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:30:16,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739185348] [2022-11-16 20:30:16,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739185348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:30:16,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:30:16,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 20:30:16,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478908234] [2022-11-16 20:30:16,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:30:16,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 20:30:16,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:30:16,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 20:30:16,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 20:30:16,712 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-16 20:30:16,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:30:16,788 INFO L93 Difference]: Finished difference Result 40 states and 53 transitions. [2022-11-16 20:30:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 20:30:16,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 19 [2022-11-16 20:30:16,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:30:16,789 INFO L225 Difference]: With dead ends: 40 [2022-11-16 20:30:16,789 INFO L226 Difference]: Without dead ends: 30 [2022-11-16 20:30:16,790 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 [2022-11-16 20:30:16,790 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:30:16,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 18 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:30:16,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-16 20:30:16,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2022-11-16 20:30:16,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:30:16,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2022-11-16 20:30:16,802 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 19 [2022-11-16 20:30:16,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:30:16,803 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2022-11-16 20:30:16,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-16 20:30:16,803 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2022-11-16 20:30:16,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 20:30:16,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:30:16,804 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:30:16,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 20:30:16,804 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:30:16,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:30:16,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1047799090, now seen corresponding path program 3 times [2022-11-16 20:30:16,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:30:16,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906000160] [2022-11-16 20:30:16,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:30:16,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:30:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:30:16,899 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:30:16,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:30:16,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906000160] [2022-11-16 20:30:16,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906000160] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:30:16,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167563859] [2022-11-16 20:30:16,900 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 20:30:16,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:30:16,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:30:16,901 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:30:16,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 20:30:17,070 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 20:30:17,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:30:17,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 20:30:17,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:30:17,095 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:30:17,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:30:17,130 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:30:17,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167563859] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:30:17,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2064568466] [2022-11-16 20:30:17,134 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 20:30:17,134 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:30:17,135 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:30:17,135 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:30:17,135 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:30:17,187 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 20:30:17,188 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 [2022-11-16 20:30:17,236 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:30:17,236 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 [2022-11-16 20:30:17,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:17,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:17,279 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 [2022-11-16 20:30:17,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:17,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:17,290 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 [2022-11-16 20:30:17,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:17,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:17,308 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 [2022-11-16 20:30:17,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:17,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:17,326 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 [2022-11-16 20:30:17,438 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-16 20:30:17,439 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 [2022-11-16 20:30:17,477 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-16 20:30:17,477 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 [2022-11-16 20:30:17,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:17,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:17,836 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-16 20:30:17,837 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 235 treesize of output 221 [2022-11-16 20:30:17,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:17,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:17,924 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 20:30:17,924 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 239 treesize of output 224 [2022-11-16 20:30:17,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:17,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:17,977 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 228 treesize of output 219 [2022-11-16 20:30:17,994 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:17,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:17,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:17,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:17,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:18,082 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-16 20:30:18,083 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 375 treesize of output 403 [2022-11-16 20:30:18,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:18,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:18,132 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 240 treesize of output 231 [2022-11-16 20:30:18,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:18,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:18,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:18,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:18,227 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-16 20:30:18,228 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 362 treesize of output 386 [2022-11-16 20:30:18,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:18,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:18,271 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 383 treesize of output 330 [2022-11-16 20:30:18,285 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 [2022-11-16 20:30:18,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:18,301 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 310 treesize of output 296 [2022-11-16 20:30:18,372 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 [2022-11-16 20:30:18,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:18,384 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 [2022-11-16 20:30:18,396 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 [2022-11-16 20:30:18,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:18,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:18,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:18,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:18,552 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 20:30:18,553 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 346 treesize of output 301 [2022-11-16 20:30:18,767 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 [2022-11-16 20:30:18,775 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 [2022-11-16 20:30:18,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:18,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:18,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:18,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:18,871 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-16 20:30:18,871 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 [2022-11-16 20:30:18,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:18,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:18,909 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:18,951 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-16 20:30:18,951 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 [2022-11-16 20:30:18,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:18,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:19,005 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 [2022-11-16 20:30:19,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:19,068 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 [2022-11-16 20:30:19,106 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 [2022-11-16 20:30:19,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:19,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:19,122 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 [2022-11-16 20:30:19,154 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 [2022-11-16 20:30:19,228 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-16 20:30:19,228 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 [2022-11-16 20:30:19,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:19,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:19,242 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 [2022-11-16 20:30:19,276 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 [2022-11-16 20:30:19,283 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 [2022-11-16 20:30:19,334 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 [2022-11-16 20:30:19,350 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 [2022-11-16 20:30:19,360 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 [2022-11-16 20:30:19,447 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 [2022-11-16 20:30:19,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-16 20:30:19,473 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 [2022-11-16 20:30:19,564 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 [2022-11-16 20:30:19,572 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 [2022-11-16 20:30:19,580 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 [2022-11-16 20:30:19,628 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:30:20,645 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1287#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= (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|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |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_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (not (= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_dll_get_data_at_#res#1|)) (= |#NULL.base| 0))' at error location [2022-11-16 20:30:20,645 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 20:30:20,646 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:30:20,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2022-11-16 20:30:20,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735301536] [2022-11-16 20:30:20,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 20:30:20,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 20:30:20,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:30:20,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 20:30:20,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-11-16 20:30:20,648 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2022-11-16 20:30:20,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:30:20,800 INFO L93 Difference]: Finished difference Result 43 states and 55 transitions. [2022-11-16 20:30:20,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 20:30:20,801 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-16 20:30:20,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:30:20,801 INFO L225 Difference]: With dead ends: 43 [2022-11-16 20:30:20,801 INFO L226 Difference]: Without dead ends: 35 [2022-11-16 20:30:20,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-11-16 20:30:20,803 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 34 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:30:20,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 23 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:30:20,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-16 20:30:20,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 25. [2022-11-16 20:30:20,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:30:20,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2022-11-16 20:30:20,818 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 19 [2022-11-16 20:30:20,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:30:20,818 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2022-11-16 20:30:20,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2022-11-16 20:30:20,819 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2022-11-16 20:30:20,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 20:30:20,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:30:20,820 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:30:20,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 20:30:21,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:30:21,027 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:30:21,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:30:21,027 INFO L85 PathProgramCache]: Analyzing trace with hash 428634211, now seen corresponding path program 1 times [2022-11-16 20:30:21,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:30:21,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337549871] [2022-11-16 20:30:21,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:30:21,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:30:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:30:21,148 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 20:30:21,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:30:21,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337549871] [2022-11-16 20:30:21,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337549871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:30:21,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:30:21,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 20:30:21,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948940961] [2022-11-16 20:30:21,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:30:21,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 20:30:21,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:30:21,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 20:30:21,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 20:30:21,151 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-16 20:30:21,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:30:21,231 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2022-11-16 20:30:21,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 20:30:21,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 19 [2022-11-16 20:30:21,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:30:21,233 INFO L225 Difference]: With dead ends: 36 [2022-11-16 20:30:21,233 INFO L226 Difference]: Without dead ends: 31 [2022-11-16 20:30:21,233 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 [2022-11-16 20:30:21,234 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:30:21,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 20 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:30:21,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-16 20:30:21,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2022-11-16 20:30:21,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:30:21,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2022-11-16 20:30:21,250 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 19 [2022-11-16 20:30:21,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:30:21,250 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2022-11-16 20:30:21,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2022-11-16 20:30:21,251 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-11-16 20:30:21,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 20:30:21,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:30:21,252 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:30:21,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 20:30:21,252 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:30:21,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:30:21,253 INFO L85 PathProgramCache]: Analyzing trace with hash 993692610, now seen corresponding path program 1 times [2022-11-16 20:30:21,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:30:21,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656985720] [2022-11-16 20:30:21,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:30:21,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:30:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:30:21,363 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 20:30:21,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:30:21,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656985720] [2022-11-16 20:30:21,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656985720] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:30:21,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244018262] [2022-11-16 20:30:21,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:30:21,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:30:21,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:30:21,366 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:30:21,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 20:30:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:30:21,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:30:21,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:30:21,614 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 20:30:21,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:30:21,642 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 20:30:21,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244018262] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:30:21,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1989469732] [2022-11-16 20:30:21,645 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 20:30:21,645 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:30:21,645 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:30:21,646 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:30:21,646 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:30:21,705 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 20:30:21,705 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 [2022-11-16 20:30:21,762 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:30:21,762 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 [2022-11-16 20:30:21,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:21,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:21,802 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 [2022-11-16 20:30:21,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:21,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:21,825 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 [2022-11-16 20:30:21,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:21,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:21,850 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 [2022-11-16 20:30:21,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:21,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:21,864 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 [2022-11-16 20:30:21,970 INFO L321 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2022-11-16 20:30:21,971 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 [2022-11-16 20:30:22,055 INFO L321 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2022-11-16 20:30:22,056 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 [2022-11-16 20:30:22,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:22,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:22,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:22,527 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-16 20:30:22,528 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 235 treesize of output 221 [2022-11-16 20:30:22,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:22,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:22,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:22,643 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-16 20:30:22,643 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 239 treesize of output 224 [2022-11-16 20:30:22,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:22,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:22,702 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 228 treesize of output 219 [2022-11-16 20:30:22,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:22,725 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:22,726 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:22,727 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:22,843 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-16 20:30:22,844 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 375 treesize of output 398 [2022-11-16 20:30:22,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:22,893 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 306 treesize of output 297 [2022-11-16 20:30:22,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:22,919 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:22,920 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:22,922 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 440 treesize of output 475 [2022-11-16 20:30:23,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:23,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:23,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:23,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:23,036 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-16 20:30:23,037 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 367 treesize of output 322 [2022-11-16 20:30:23,214 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 121 treesize of output 65 [2022-11-16 20:30:23,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:23,230 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 27 treesize of output 17 [2022-11-16 20:30:23,247 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 39 treesize of output 23 [2022-11-16 20:30:23,415 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-16 20:30:23,416 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 657 treesize of output 572 [2022-11-16 20:30:23,431 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 554 treesize of output 430 [2022-11-16 20:30:23,452 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 516 treesize of output 512 [2022-11-16 20:30:23,528 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 [2022-11-16 20:30:23,535 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 [2022-11-16 20:30:23,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:23,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:23,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:23,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:23,622 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-16 20:30:23,622 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 [2022-11-16 20:30:23,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:23,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:23,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:23,695 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-16 20:30:23,696 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 [2022-11-16 20:30:23,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:23,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:23,737 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 [2022-11-16 20:30:23,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:23,778 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 [2022-11-16 20:30:23,831 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-16 20:30:23,832 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 [2022-11-16 20:30:23,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:23,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:23,842 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 [2022-11-16 20:30:23,871 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-16 20:30:23,872 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 [2022-11-16 20:30:23,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:23,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:23,885 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 [2022-11-16 20:30:23,897 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 [2022-11-16 20:30:23,932 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 [2022-11-16 20:30:23,938 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 [2022-11-16 20:30:23,981 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 [2022-11-16 20:30:23,996 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 [2022-11-16 20:30:24,006 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 [2022-11-16 20:30:24,071 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 [2022-11-16 20:30:24,084 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 [2022-11-16 20:30:24,092 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 [2022-11-16 20:30:24,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 20:30:24,183 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 [2022-11-16 20:30:24,192 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 [2022-11-16 20:30:24,300 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:30:25,840 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1653#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= (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|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |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_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (not (= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_dll_get_data_at_#res#1|)) (= |#NULL.base| 0))' at error location [2022-11-16 20:30:25,840 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 20:30:25,840 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:30:25,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2022-11-16 20:30:25,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124180160] [2022-11-16 20:30:25,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 20:30:25,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 20:30:25,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:30:25,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 20:30:25,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-11-16 20:30:25,842 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 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) [2022-11-16 20:30:25,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:30:25,943 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2022-11-16 20:30:25,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 20:30:25,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 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 21 [2022-11-16 20:30:25,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:30:25,944 INFO L225 Difference]: With dead ends: 36 [2022-11-16 20:30:25,945 INFO L226 Difference]: Without dead ends: 31 [2022-11-16 20:30:25,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 51 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2022-11-16 20:30:25,946 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 20 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:30:25,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 21 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:30:25,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-16 20:30:25,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2022-11-16 20:30:25,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:30:25,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2022-11-16 20:30:25,961 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 21 [2022-11-16 20:30:25,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:30:25,961 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2022-11-16 20:30:25,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 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) [2022-11-16 20:30:25,961 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2022-11-16 20:30:25,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 20:30:25,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:30:25,962 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:30:25,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-16 20:30:26,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 20:30:26,167 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:30:26,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:30:26,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1880581264, now seen corresponding path program 4 times [2022-11-16 20:30:26,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:30:26,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105145837] [2022-11-16 20:30:26,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:30:26,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:30:26,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:30:26,347 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 20:30:26,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:30:26,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105145837] [2022-11-16 20:30:26,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105145837] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:30:26,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767450355] [2022-11-16 20:30:26,348 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 20:30:26,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:30:26,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:30:26,351 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:30:26,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 20:30:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:30:26,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:30:26,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:30:26,632 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-16 20:30:26,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 20:30:26,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767450355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:30:26,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 20:30:26,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-11-16 20:30:26,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336412136] [2022-11-16 20:30:26,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:30:26,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 20:30:26,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:30:26,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 20:30:26,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 20:30:26,634 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:30:26,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:30:26,698 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2022-11-16 20:30:26,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 20:30:26,699 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 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 21 [2022-11-16 20:30:26,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:30:26,699 INFO L225 Difference]: With dead ends: 35 [2022-11-16 20:30:26,699 INFO L226 Difference]: Without dead ends: 23 [2022-11-16 20:30:26,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 20:30:26,700 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 10 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:30:26,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 14 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:30:26,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-16 20:30:26,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-16 20:30:26,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 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) [2022-11-16 20:30:26,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-11-16 20:30:26,711 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2022-11-16 20:30:26,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:30:26,712 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-11-16 20:30:26,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:30:26,712 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-11-16 20:30:26,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 20:30:26,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:30:26,713 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:30:26,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 20:30:26,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:30:26,918 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:30:26,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:30:26,919 INFO L85 PathProgramCache]: Analyzing trace with hash 738277921, now seen corresponding path program 1 times [2022-11-16 20:30:26,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:30:26,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35762657] [2022-11-16 20:30:26,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:30:26,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:30:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:30:28,483 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:30:28,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:30:28,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35762657] [2022-11-16 20:30:28,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35762657] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:30:28,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75485919] [2022-11-16 20:30:28,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:30:28,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:30:28,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:30:28,485 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:30:28,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 20:30:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:30:28,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-16 20:30:28,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:30:28,733 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 [2022-11-16 20:30:28,820 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-16 20:30:28,821 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 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-16 20:30:28,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 20:30:28,900 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 20:30:28,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2022-11-16 20:30:29,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:29,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:29,107 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:30:29,107 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 1 case distinctions, treesize of input 35 treesize of output 33 [2022-11-16 20:30:29,348 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 20:30:29,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 72 [2022-11-16 20:30:29,358 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 31 treesize of output 21 [2022-11-16 20:30:29,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:29,363 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 0 case distinctions, treesize of input 34 treesize of output 36 [2022-11-16 20:30:29,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 61 treesize of output 37 [2022-11-16 20:30:29,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 30 treesize of output 18 [2022-11-16 20:30:29,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 10 [2022-11-16 20:30:29,828 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:30:29,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:30:30,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 86 treesize of output 64 [2022-11-16 20:30:30,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 86 treesize of output 64 [2022-11-16 20:30:30,165 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~len~0#1| 1)) (.cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (and (<= |c_ULTIMATE.start_dll_update_at_~data#1| .cse0) (<= .cse0 |c_ULTIMATE.start_dll_update_at_~data#1|) (forall ((v_ArrVal_1500 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_1500) |c_ULTIMATE.start_main_~s~0#1.base|) .cse1) |c_ULTIMATE.start_dll_update_at_~head#1.offset|)) (forall ((v_ArrVal_1501 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_1501) |c_ULTIMATE.start_main_~s~0#1.base|) .cse1) |c_ULTIMATE.start_dll_update_at_~head#1.base|)))) is different from false [2022-11-16 20:30:30,189 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:30:30,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 43 [2022-11-16 20:30:30,196 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 17 treesize of output 13 [2022-11-16 20:30:30,694 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:30:30,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 75 treesize of output 89 [2022-11-16 20:30:30,733 INFO L321 Elim1Store]: treesize reduction 10, result has 70.6 percent of original size [2022-11-16 20:30:30,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 91 [2022-11-16 20:30:30,761 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:30:30,761 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 68 [2022-11-16 20:30:30,797 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-16 20:30:30,798 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 2 case distinctions, treesize of input 10 treesize of output 11 [2022-11-16 20:30:30,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 [2022-11-16 20:30:30,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:30,821 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 8 treesize of output 4 [2022-11-16 20:30:30,826 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:30:30,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 9 [2022-11-16 20:30:31,051 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-16 20:30:31,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75485919] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:30:31,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [435499789] [2022-11-16 20:30:31,053 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 20:30:31,053 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:30:31,053 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:30:31,053 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:30:31,053 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:30:31,105 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:30:31,105 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 [2022-11-16 20:30:31,116 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 [2022-11-16 20:30:31,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:31,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:31,148 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 [2022-11-16 20:30:31,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:31,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:31,165 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 [2022-11-16 20:30:31,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:31,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:31,187 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 [2022-11-16 20:30:31,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:31,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:31,199 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 [2022-11-16 20:30:31,333 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-16 20:30:31,334 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 [2022-11-16 20:30:31,371 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-16 20:30:31,371 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 [2022-11-16 20:30:31,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:31,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:31,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:31,725 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-16 20:30:31,725 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 243 treesize of output 229 [2022-11-16 20:30:31,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:31,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:31,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:31,795 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:31,802 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 20:30:31,803 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 247 treesize of output 232 [2022-11-16 20:30:31,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:31,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:31,852 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 236 treesize of output 227 [2022-11-16 20:30:31,885 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:31,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:31,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:32,031 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-16 20:30:32,032 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 5 case distinctions, treesize of input 383 treesize of output 406 [2022-11-16 20:30:32,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:32,067 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 314 treesize of output 305 [2022-11-16 20:30:32,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:32,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:32,090 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 448 treesize of output 478 [2022-11-16 20:30:32,208 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-16 20:30:32,209 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 220 treesize of output 165 [2022-11-16 20:30:32,221 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 145 treesize of output 113 [2022-11-16 20:30:32,241 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 39 treesize of output 19 [2022-11-16 20:30:32,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:32,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:32,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:32,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:32,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:32,311 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:32,318 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 20:30:32,318 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 397 treesize of output 352 [2022-11-16 20:30:32,490 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-16 20:30:32,491 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 725 treesize of output 644 [2022-11-16 20:30:32,519 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 644 treesize of output 564 [2022-11-16 20:30:32,540 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 579 treesize of output 559 [2022-11-16 20:30:32,629 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 [2022-11-16 20:30:32,636 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 [2022-11-16 20:30:32,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:32,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:32,672 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:32,748 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-16 20:30:32,749 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 [2022-11-16 20:30:32,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:32,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:32,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:32,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:32,813 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-16 20:30:32,813 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 [2022-11-16 20:30:32,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:32,838 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 [2022-11-16 20:30:32,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:32,854 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 [2022-11-16 20:30:32,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:32,894 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 [2022-11-16 20:30:32,925 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 [2022-11-16 20:30:32,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:32,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:32,936 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 [2022-11-16 20:30:32,947 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 [2022-11-16 20:30:33,004 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-16 20:30:33,004 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 [2022-11-16 20:30:33,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:33,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:33,021 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 [2022-11-16 20:30:33,050 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 [2022-11-16 20:30:33,056 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 [2022-11-16 20:30:33,101 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 [2022-11-16 20:30:33,111 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 [2022-11-16 20:30:33,120 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 [2022-11-16 20:30:33,186 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 [2022-11-16 20:30:33,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-16 20:30:33,204 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 [2022-11-16 20:30:33,279 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 [2022-11-16 20:30:33,291 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 [2022-11-16 20:30:33,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-16 20:30:33,705 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:30:35,313 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2111#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~head#1.offset|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~index#1|) (<= |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|) (<= 2 |ULTIMATE.start_main_~expected~0#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 [2022-11-16 20:30:35,313 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 20:30:35,314 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:30:35,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 46 [2022-11-16 20:30:35,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500977772] [2022-11-16 20:30:35,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 20:30:35,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-16 20:30:35,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:30:35,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-16 20:30:35,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=2561, Unknown=1, NotChecked=102, Total=2862 [2022-11-16 20:30:35,317 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 46 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:30:36,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:30:36,640 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-11-16 20:30:36,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 20:30:36,640 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-16 20:30:36,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:30:36,641 INFO L225 Difference]: With dead ends: 27 [2022-11-16 20:30:36,641 INFO L226 Difference]: Without dead ends: 24 [2022-11-16 20:30:36,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 956 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=378, Invalid=3785, Unknown=1, NotChecked=126, Total=4290 [2022-11-16 20:30:36,643 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 62 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 20:30:36,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 59 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 383 Invalid, 0 Unknown, 77 Unchecked, 0.5s Time] [2022-11-16 20:30:36,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-16 20:30:36,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-16 20:30:36,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 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) [2022-11-16 20:30:36,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-11-16 20:30:36,656 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 22 [2022-11-16 20:30:36,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:30:36,656 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-11-16 20:30:36,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:30:36,657 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-11-16 20:30:36,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 20:30:36,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:30:36,658 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:30:36,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 20:30:36,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 20:30:36,864 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:30:36,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:30:36,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1410357154, now seen corresponding path program 2 times [2022-11-16 20:30:36,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:30:36,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044529552] [2022-11-16 20:30:36,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:30:36,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:30:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:30:36,968 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-16 20:30:36,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:30:36,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044529552] [2022-11-16 20:30:36,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044529552] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:30:36,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8444081] [2022-11-16 20:30:36,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 20:30:36,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:30:36,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:30:36,975 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:30:36,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 20:30:37,178 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 20:30:37,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 20:30:37,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 20:30:37,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:30:37,216 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 20:30:37,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:30:37,260 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 20:30:37,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8444081] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:30:37,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1893357308] [2022-11-16 20:30:37,262 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 20:30:37,263 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:30:37,263 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:30:37,263 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:30:37,263 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:30:37,304 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 20:30:37,305 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 [2022-11-16 20:30:37,348 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:30:37,348 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 [2022-11-16 20:30:37,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:37,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:37,384 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 [2022-11-16 20:30:37,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:37,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:37,399 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 [2022-11-16 20:30:37,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:37,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:37,422 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 [2022-11-16 20:30:37,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:37,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:37,434 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 [2022-11-16 20:30:37,552 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-16 20:30:37,553 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 [2022-11-16 20:30:37,592 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-16 20:30:37,592 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 [2022-11-16 20:30:37,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:37,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:37,861 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:37,938 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-16 20:30:37,939 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 243 treesize of output 229 [2022-11-16 20:30:37,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:37,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:37,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:38,010 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 20:30:38,011 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 247 treesize of output 232 [2022-11-16 20:30:38,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,057 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 236 treesize of output 227 [2022-11-16 20:30:38,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:38,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:38,185 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-16 20:30:38,186 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 383 treesize of output 401 [2022-11-16 20:30:38,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,212 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 314 treesize of output 305 [2022-11-16 20:30:38,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:38,231 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 448 treesize of output 483 [2022-11-16 20:30:38,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:38,307 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 20:30:38,308 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 397 treesize of output 352 [2022-11-16 20:30:38,377 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 115 treesize of output 65 [2022-11-16 20:30:38,386 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 [2022-11-16 20:30:38,397 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 45 treesize of output 25 [2022-11-16 20:30:38,468 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-16 20:30:38,469 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 561 treesize of output 488 [2022-11-16 20:30:38,482 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 470 treesize of output 386 [2022-11-16 20:30:38,499 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 356 treesize of output 326 [2022-11-16 20:30:38,647 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 [2022-11-16 20:30:38,653 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 [2022-11-16 20:30:38,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:38,750 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-16 20:30:38,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-11-16 20:30:38,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:38,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:30:38,811 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-16 20:30:38,812 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 [2022-11-16 20:30:38,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,847 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 [2022-11-16 20:30:38,890 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-16 20:30:38,890 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 [2022-11-16 20:30:38,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,902 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 [2022-11-16 20:30:38,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,931 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 [2022-11-16 20:30:38,963 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-16 20:30:38,963 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 [2022-11-16 20:30:38,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:30:38,974 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 [2022-11-16 20:30:39,049 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 [2022-11-16 20:30:39,055 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 [2022-11-16 20:30:39,103 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 [2022-11-16 20:30:39,114 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 [2022-11-16 20:30:39,130 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 [2022-11-16 20:30:39,188 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 [2022-11-16 20:30:39,199 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 [2022-11-16 20:30:39,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-16 20:30:39,283 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 [2022-11-16 20:30:39,294 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 [2022-11-16 20:30:39,302 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 [2022-11-16 20:30:39,681 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:30:40,727 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2366#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~head#1.offset|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~index#1|) (<= |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|) (<= 2 |ULTIMATE.start_main_~expected~0#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 [2022-11-16 20:30:40,728 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 20:30:40,728 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 20:30:40,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 7 [2022-11-16 20:30:40,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088658865] [2022-11-16 20:30:40,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 20:30:40,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 20:30:40,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:30:40,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 20:30:40,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-11-16 20:30:40,729 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:30:40,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:30:40,848 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2022-11-16 20:30:40,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 20:30:40,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 20:30:40,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:30:40,849 INFO L225 Difference]: With dead ends: 24 [2022-11-16 20:30:40,849 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 20:30:40,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 58 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2022-11-16 20:30:40,850 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:30:40,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 11 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:30:40,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 20:30:40,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 20:30:40,851 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) [2022-11-16 20:30:40,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 20:30:40,851 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2022-11-16 20:30:40,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:30:40,852 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 20:30:40,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:30:40,852 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 20:30:40,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 20:30:40,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 20:30:40,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 20:30:41,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-16 20:30:41,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 20:30:46,202 INFO L902 garLoopResultBuilder]: At program point myexitENTRY(lines 572 574) the Hoare annotation is: true [2022-11-16 20:30:46,202 INFO L902 garLoopResultBuilder]: At program point L573(line 573) the Hoare annotation is: true [2022-11-16 20:30:46,202 INFO L899 garLoopResultBuilder]: For program point myexitEXIT(lines 572 574) no Hoare annotation was computed. [2022-11-16 20:30:46,202 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 591) no Hoare annotation was computed. [2022-11-16 20:30:46,203 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 589 591) no Hoare annotation was computed. [2022-11-16 20:30:46,203 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 20:30:46,203 INFO L902 garLoopResultBuilder]: At program point L590(line 590) the Hoare annotation is: true [2022-11-16 20:30:46,203 INFO L895 garLoopResultBuilder]: At program point L633-3(lines 633 638) the Hoare annotation is: (let ((.cse22 (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|))) (let ((.cse24 (select .cse22 4))) (let ((.cse1 (not (= 0 .cse24))) (.cse3 (not (= |ULTIMATE.start_main_~s~0#1.base| .cse24))) (.cse12 (= (select .cse22 8) 0)) (.cse19 (= (let ((.cse23 (+ |ULTIMATE.start_main_~s~0#1.offset| 4))) (select (select |#memory_int| (select .cse22 .cse23)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|) .cse23))) (+ |ULTIMATE.start_main_~len~0#1| 1))) (.cse20 (= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse0 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse2 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse4 (<= |ULTIMATE.start_dll_create_~len#1| 2)) (.cse5 (<= |#NULL.offset| 0)) (.cse6 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse7 (<= |ULTIMATE.start_dll_update_at_~index#1| 0)) (.cse8 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse9 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse10 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse11 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse13 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse14 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse15 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse16 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse17 (<= 0 |#NULL.offset|)) (.cse18 (<= 0 |#StackHeapBarrier|)) (.cse21 (= |#NULL.base| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 0) .cse2 .cse3 .cse4 .cse5 .cse6 (= (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) |ULTIMATE.start_main_~s~0#1.offset|) |ULTIMATE.start_main_~len~0#1|) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~i~0#1| 1) .cse5 (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21) (and .cse0 .cse2 .cse4 .cse5 .cse6 .cse7 .cse8 (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse9 .cse10 .cse11 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse21))))) [2022-11-16 20:30:46,203 INFO L902 garLoopResultBuilder]: At program point L642(lines 624 643) the Hoare annotation is: true [2022-11-16 20:30:46,204 INFO L895 garLoopResultBuilder]: At program point L618-2(lines 618 621) the Hoare annotation is: (let ((.cse34 (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|)) (.cse33 (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_create_~head~0#1.base|))) (let ((.cse35 (select .cse33 4)) (.cse29 (select .cse34 4))) (let ((.cse9 (+ |ULTIMATE.start_main_~len~0#1| 1)) (.cse10 (= |ULTIMATE.start_main_~i~0#1| 1)) (.cse14 (= (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) |ULTIMATE.start_main_~s~0#1.offset|) |ULTIMATE.start_main_~len~0#1|)) (.cse0 (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0)) (.cse1 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse28 (not (= 0 .cse29))) (.cse2 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse3 (not (= |ULTIMATE.start_dll_create_~head~0#1.base| 0))) (.cse4 (not (= |ULTIMATE.start_dll_create_~head~0#1.base| .cse35))) (.cse30 (= |ULTIMATE.start_main_~s~0#1.base| |ULTIMATE.start_dll_update_at_~head#1.base|)) (.cse5 (= (select |#valid| |ULTIMATE.start_dll_create_~head~0#1.base|) 1)) (.cse6 (= (select |#valid| |ULTIMATE.start_dll_create_~new_head~0#1.base|) 1)) (.cse8 (<= |ULTIMATE.start_dll_create_~len#1| 2)) (.cse11 (<= |#NULL.offset| 0)) (.cse12 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse13 (not (= .cse35 0))) (.cse15 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse16 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse17 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse18 (= (select .cse34 8) 0)) (.cse19 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse20 (not (= |ULTIMATE.start_dll_create_~new_head~0#1.base| 0))) (.cse21 (= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse22 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse23 (= (select .cse33 8) 0)) (.cse24 (<= 0 |#NULL.offset|)) (.cse31 (= |ULTIMATE.start_main_~s~0#1.offset| |ULTIMATE.start_dll_update_at_~head#1.offset|)) (.cse25 (<= 0 |#StackHeapBarrier|)) (.cse26 (= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse27 (= |#NULL.base| 0))) (or (let ((.cse7 (+ |ULTIMATE.start_main_~s~0#1.offset| 4))) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (forall ((v_ArrVal_1501 (Array Int Int))) (= (select (select (store |#memory_$Pointer$.base| |ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_1501) |ULTIMATE.start_main_~s~0#1.base|) .cse7) |ULTIMATE.start_dll_update_at_~head#1.base|)) .cse8 (<= |ULTIMATE.start_dll_update_at_~data#1| .cse9) .cse10 .cse11 .cse12 .cse13 .cse14 (<= |ULTIMATE.start_dll_update_at_~index#1| 0) (<= .cse9 |ULTIMATE.start_dll_update_at_~data#1|) .cse15 (not (= |ULTIMATE.start_dll_update_at_~head#1.base| 0)) .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 (= |ULTIMATE.start_dll_update_at_~head#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|) .cse7)) .cse23 .cse24 .cse25 .cse26 .cse27)) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_dll_update_at_~index#1|) .cse28 .cse2 (not (= |ULTIMATE.start_main_~s~0#1.base| .cse29)) .cse3 .cse4 .cse30 .cse5 (= .cse9 |ULTIMATE.start_dll_update_at_~data#1|) .cse6 (<= |ULTIMATE.start_dll_update_at_~index#1| 1) .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse31 .cse25 .cse26 .cse27) (let ((.cse32 (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 .cse28 (= |ULTIMATE.start_main_~i~0#1| 0) .cse2 .cse3 .cse4 .cse30 .cse5 .cse6 .cse8 .cse11 .cse12 .cse13 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_update_at_~head#1.base|) 4) |ULTIMATE.start_dll_update_at_~head#1.base|)) .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 (<= |ULTIMATE.start_dll_update_at_~data#1| .cse32) .cse23 .cse24 .cse31 .cse25 (<= .cse32 |ULTIMATE.start_dll_update_at_~data#1|) (= |ULTIMATE.start_dll_update_at_~index#1| 0) .cse26 .cse27)))))) [2022-11-16 20:30:46,204 INFO L899 garLoopResultBuilder]: For program point L635(lines 635 637) no Hoare annotation was computed. [2022-11-16 20:30:46,204 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 641) no Hoare annotation was computed. [2022-11-16 20:30:46,204 INFO L895 garLoopResultBuilder]: At program point L611-2(lines 611 614) the Hoare annotation is: (let ((.cse31 (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|))) (let ((.cse33 (select .cse31 4)) (.cse12 (select (select |#memory_int| |ULTIMATE.start_dll_get_data_at_~head#1.base|) |ULTIMATE.start_dll_get_data_at_~head#1.offset|))) (let ((.cse7 (= |ULTIMATE.start_main_~i~0#1| 1)) (.cse0 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse1 (= .cse12 |ULTIMATE.start_main_~expected~0#1|)) (.cse2 (not (= 0 .cse33))) (.cse3 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse4 (not (= |ULTIMATE.start_main_~s~0#1.base| .cse33))) (.cse5 (<= (+ |ULTIMATE.start_main_~i~0#1| 1) |ULTIMATE.start_main_~len~0#1|)) (.cse29 (= |ULTIMATE.start_dll_get_data_at_~head#1.offset| 0)) (.cse6 (<= |ULTIMATE.start_dll_create_~len#1| 2)) (.cse8 (<= |#NULL.offset| 0)) (.cse9 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse10 (<= |ULTIMATE.start_dll_update_at_~index#1| 0)) (.cse11 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse13 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse14 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse15 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse16 (= (select .cse31 8) 0)) (.cse17 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse18 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse19 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse20 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse21 (<= 0 |#NULL.offset|)) (.cse22 (<= 0 |#StackHeapBarrier|)) (.cse23 (= (let ((.cse32 (+ |ULTIMATE.start_main_~s~0#1.offset| 4))) (select (select |#memory_int| (select .cse31 .cse32)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|) .cse32))) (+ |ULTIMATE.start_main_~len~0#1| 1))) (.cse24 (= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse25 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0) .cse9 .cse10 .cse11 (= 3 .cse12) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 (not (= |ULTIMATE.start_dll_get_data_at_~head#1.base| 0)) .cse23 .cse24 .cse25) (let ((.cse28 (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|))) (let ((.cse26 (let ((.cse30 (+ |ULTIMATE.start_dll_get_data_at_~head#1.offset| 4))) (select (select |#memory_int| (select .cse28 .cse30)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_get_data_at_~head#1.base|) .cse30)))) (.cse27 (select .cse28 4))) (and (<= 1 |ULTIMATE.start_dll_get_data_at_~index#1|) .cse0 .cse2 .cse3 (= .cse26 |ULTIMATE.start_main_~expected~0#1|) .cse4 (= .cse26 3) (not (= |ULTIMATE.start_dll_get_data_at_~head#1.base| .cse27)) (= (select .cse28 8) 0) .cse5 .cse29 .cse6 .cse7 .cse8 .cse9 (<= |ULTIMATE.start_dll_get_data_at_~index#1| 1) .cse10 .cse11 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (not (= 0 .cse27)) .cse20 .cse21 .cse22 .cse23 .cse24 .cse25))) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~i~0#1| 0) .cse3 .cse4 .cse5 .cse29 .cse6 .cse8 .cse9 (= (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) |ULTIMATE.start_main_~s~0#1.offset|) |ULTIMATE.start_main_~len~0#1|) .cse10 .cse11 .cse13 .cse14 (= 2 .cse12) (= |ULTIMATE.start_dll_get_data_at_~index#1| 0) .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25))))) [2022-11-16 20:30:46,205 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 20:30:46,205 INFO L895 garLoopResultBuilder]: At program point L636(lines 624 643) the Hoare annotation is: false [2022-11-16 20:30:46,205 INFO L895 garLoopResultBuilder]: At program point L587-2(lines 587 600) the Hoare annotation is: (let ((.cse9 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse10 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse14 (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0)) (.cse0 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse1 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse15 (not (= |ULTIMATE.start_dll_create_~head~0#1.base| 0))) (.cse16 (= (select |#valid| |ULTIMATE.start_dll_create_~head~0#1.base|) 1)) (.cse17 (= (select |#valid| |ULTIMATE.start_dll_create_~new_head~0#1.base|) 1)) (.cse18 (<= |ULTIMATE.start_dll_create_~len#1| 2)) (.cse2 (<= |#NULL.offset| 0)) (.cse3 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse4 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse5 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse6 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse7 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse19 (not (= |ULTIMATE.start_dll_create_~new_head~0#1.base| 0))) (.cse8 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse11 (<= 0 |#NULL.offset|)) (.cse12 (<= 0 |#StackHeapBarrier|)) (.cse13 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (= |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_dll_create_~len#1|) .cse13) (and .cse14 .cse0 .cse1 .cse15 .cse16 .cse17 .cse18 .cse2 .cse3 (<= 1 |ULTIMATE.start_dll_create_~len#1|) .cse4 .cse5 .cse6 .cse7 .cse19 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13) (let ((.cse21 (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_create_~head~0#1.base|))) (let ((.cse20 (select .cse21 4))) (and .cse14 .cse0 .cse1 .cse15 (not (= |ULTIMATE.start_dll_create_~head~0#1.base| .cse20)) .cse16 .cse17 .cse18 .cse2 .cse3 (not (= .cse20 0)) .cse4 .cse5 .cse6 .cse7 .cse19 (= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) .cse8 (= (select .cse21 8) 0) .cse11 .cse12 .cse13))))) [2022-11-16 20:30:46,205 INFO L902 garLoopResultBuilder]: At program point L604-2(lines 604 608) the Hoare annotation is: true [2022-11-16 20:30:46,206 INFO L895 garLoopResultBuilder]: At program point L629-3(lines 629 632) the Hoare annotation is: (let ((.cse18 (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~s~0#1.base|)) (.cse30 (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_create_~head~0#1.base|))) (let ((.cse31 (select .cse30 4)) (.cse32 (select .cse18 4))) (let ((.cse1 (not (= 0 .cse32))) (.cse3 (not (= |ULTIMATE.start_main_~s~0#1.base| .cse32))) (.cse4 (<= |ULTIMATE.start_dll_create_~len#1| 2)) (.cse7 (= (select (select |#memory_int| |ULTIMATE.start_main_~s~0#1.base|) |ULTIMATE.start_main_~s~0#1.offset|) |ULTIMATE.start_main_~len~0#1|)) (.cse11 (= (select .cse18 8) 0)) (.cse14 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse15 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse22 (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0)) (.cse0 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse2 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse23 (not (= |ULTIMATE.start_dll_create_~head~0#1.base| 0))) (.cse24 (not (= |ULTIMATE.start_dll_create_~head~0#1.base| .cse31))) (.cse25 (= (select |#valid| |ULTIMATE.start_dll_create_~head~0#1.base|) 1)) (.cse26 (= (select |#valid| |ULTIMATE.start_dll_create_~new_head~0#1.base|) 1)) (.cse5 (<= |#NULL.offset| 0)) (.cse6 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse27 (not (= .cse31 0))) (.cse8 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse9 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse10 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse12 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse28 (not (= |ULTIMATE.start_dll_create_~new_head~0#1.base| 0))) (.cse13 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse29 (= (select .cse30 8) 0)) (.cse16 (<= 0 |#NULL.offset|)) (.cse17 (<= 0 |#StackHeapBarrier|)) (.cse20 (= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse21 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (<= |ULTIMATE.start_dll_update_at_~index#1| 0) (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 (= (let ((.cse19 (+ |ULTIMATE.start_main_~s~0#1.offset| 4))) (select (select |#memory_int| (select .cse18 .cse19)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~s~0#1.base|) .cse19))) (+ |ULTIMATE.start_main_~len~0#1| 1)) .cse20 .cse21) (and .cse22 .cse0 .cse1 .cse2 .cse3 .cse23 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse24 (= |ULTIMATE.start_main_~s~0#1.base| |ULTIMATE.start_dll_update_at_~head#1.base|) .cse25 .cse26 .cse4 .cse5 .cse6 .cse27 .cse7 (= |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_dll_update_at_~data#1|) .cse8 .cse9 .cse10 .cse11 .cse12 .cse28 .cse13 .cse14 .cse15 .cse29 .cse16 (<= |ULTIMATE.start_main_~i~0#1| 1) (= |ULTIMATE.start_main_~s~0#1.offset| |ULTIMATE.start_dll_update_at_~head#1.offset|) .cse17 (= |ULTIMATE.start_dll_update_at_~index#1| 0) .cse20 .cse21) (and .cse22 .cse0 (= |ULTIMATE.start_main_~i~0#1| 0) .cse2 .cse23 .cse24 .cse25 .cse26 .cse5 .cse6 .cse27 (= |ULTIMATE.start_dll_create_~head~0#1.base| |ULTIMATE.start_dll_create_#res#1.base|) (= |ULTIMATE.start_dll_create_#res#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) .cse8 .cse9 (<= |ULTIMATE.start_dll_create_~len#1| 0) .cse10 .cse12 .cse28 (= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) .cse13 (= |ULTIMATE.start_dll_create_#res#1.base| |ULTIMATE.start_main_~s~0#1.base|) .cse29 .cse16 .cse17 .cse20 .cse21))))) [2022-11-16 20:30:46,209 INFO L444 BasicCegarLoop]: Path program histogram: [4, 3, 2, 1, 1, 1, 1] [2022-11-16 20:30:46,211 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 20:30:46,219 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,220 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,221 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,221 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,221 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,221 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,222 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,222 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,222 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,223 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,229 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,230 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,230 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,230 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,231 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,231 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,231 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,232 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,232 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,232 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,236 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,237 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,237 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,238 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,238 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,238 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,239 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,239 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,239 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,240 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,240 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,240 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,241 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,241 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,241 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,242 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,242 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,242 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,243 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,243 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,244 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,244 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,247 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,247 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,248 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,248 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,248 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,249 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,249 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,249 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,250 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,250 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,250 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,251 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,251 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,252 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,252 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,252 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,252 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,253 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,253 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,253 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,254 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,254 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,257 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,258 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,258 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,260 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,260 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,261 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,262 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,263 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,263 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,264 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,264 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,264 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,264 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,265 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,265 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,266 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,266 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,266 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,267 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,267 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,269 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,270 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,270 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,270 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,270 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,271 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,271 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,271 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,272 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,272 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,273 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,273 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,273 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,274 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,277 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,278 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,278 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1501,QUANTIFIED] [2022-11-16 20:30:46,278 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,279 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,279 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,279 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,280 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,280 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,280 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,281 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,281 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,281 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,282 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,282 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,282 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,283 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,283 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,283 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,286 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,286 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,287 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1501,QUANTIFIED] [2022-11-16 20:30:46,287 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,287 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,288 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,288 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,288 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,289 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,289 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,289 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,290 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,290 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,290 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,291 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,291 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,291 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,292 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,292 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 08:30:46 BoogieIcfgContainer [2022-11-16 20:30:46,294 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 20:30:46,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 20:30:46,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 20:30:46,295 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 20:30:46,296 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:29:46" (3/4) ... [2022-11-16 20:30:46,299 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 20:30:46,304 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2022-11-16 20:30:46,309 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-16 20:30:46,309 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-16 20:30:46,310 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 20:30:46,310 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 20:30:46,334 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((1 <= data && 2 <= \old(len)) && #NULL <= 0) && data <= 1) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && len == len) && #NULL == 0) || ((((((((((((((((((((new_head == 0 && 1 <= data) && 2 <= \old(len)) && !(head == 0)) && \valid[head] == 1) && \valid[new_head] == 1) && len <= 2) && #NULL <= 0) && data <= 1) && 1 <= len) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && !(new_head == 0)) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((new_head == 0 && 1 <= data) && 2 <= \old(len)) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && \valid[head] == 1) && \valid[new_head] == 1) && len <= 2) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) [2022-11-16 20:30:46,335 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((1 <= data && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && len <= 2) && #NULL <= 0) && data <= 1) && unknown-#memory_int-unknown[s][s] == len) && index <= 0) && 2 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0) || (((((((((((((((((((((((((((((((((new_head == 0 && 1 <= data) && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && !(head == 0)) && 1 <= i) && !(head == #memory_$Pointer$[head][4])) && s == head) && \valid[head] == 1) && \valid[new_head] == 1) && len <= 2) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && unknown-#memory_int-unknown[s][s] == len) && len == data) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && !(new_head == 0)) && \old(data) <= 1) && head <= 0) && 0 <= head) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && i <= 1) && s == head) && 0 <= unknown-#StackHeapBarrier-unknown) && index == 0) && s == 0) && #NULL == 0)) || ((((((((((((((((((((((((((new_head == 0 && 1 <= data) && i == 0) && 2 <= \old(len)) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && \valid[head] == 1) && \valid[new_head] == 1) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && head == \result) && \result == s) && data == 1) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && \result == s) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && s == 0) && #NULL == 0) [2022-11-16 20:30:46,335 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((1 <= data && !(0 == #memory_$Pointer$[s][4])) && i == 0) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && len <= 2) && #NULL <= 0) && data <= 1) && unknown-#memory_int-unknown[s][s] == len) && index <= 0) && 0 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0) || (((((((((((((((((((((((1 <= data && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && len <= 2) && i == 1) && #NULL <= 0) && index <= 0) && data <= 1) && index <= 0) && 0 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0)) || (((((((((((((((((1 <= data && 2 <= \old(len)) && len <= 2) && #NULL <= 0) && data <= 1) && index <= 0) && 0 <= i) && 2 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) [2022-11-16 20:30:46,335 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((new_head == 0 && 1 <= data) && 2 <= \old(len)) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && \valid[head] == 1) && \valid[new_head] == 1) && (forall v_ArrVal_1501 : [int]int :: #memory_$Pointer$[head := v_ArrVal_1501][s][s + 4] == head)) && len <= 2) && data <= len + 1) && i == 1) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && unknown-#memory_int-unknown[s][s] == len) && index <= 0) && len + 1 <= data) && data == 1) && !(head == 0)) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && head == #memory_$Pointer$[s][s + 4]) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && s == 0) && #NULL == 0) || ((((((((((((((((((((((((((((((((new_head == 0 && 1 <= data) && 1 <= index) && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && s == head) && \valid[head] == 1) && len + 1 == data) && \valid[new_head] == 1) && index <= 1) && len <= 2) && i == 1) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && unknown-#memory_int-unknown[s][s] == len) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && s == head) && 0 <= unknown-#StackHeapBarrier-unknown) && s == 0) && #NULL == 0)) || (((((((((((((((((((((((((((((((new_head == 0 && 1 <= data) && !(0 == #memory_$Pointer$[s][4])) && i == 0) && 2 <= \old(len)) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && s == head) && \valid[head] == 1) && \valid[new_head] == 1) && len <= 2) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && !(#memory_$Pointer$[head][4] == head)) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && data <= len + i) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && s == head) && 0 <= unknown-#StackHeapBarrier-unknown) && len + i <= data) && index == 0) && s == 0) && #NULL == 0) [2022-11-16 20:30:46,336 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((1 <= data && unknown-#memory_int-unknown[head][head] == expected) && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && i + 1 <= len) && len <= 2) && i == 1) && #NULL <= 0) && index <= 0) && data <= 1) && index <= 0) && 0 <= i) && 3 == unknown-#memory_int-unknown[head][head]) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && !(head == 0)) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0) || (((((((((((((((((((((((((((((((1 <= index && 1 <= data) && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && unknown-#memory_int-unknown[#memory_$Pointer$[head][head + 4]][#memory_$Pointer$[head][head + 4]] == expected) && !(s == #memory_$Pointer$[s][4])) && unknown-#memory_int-unknown[#memory_$Pointer$[head][head + 4]][#memory_$Pointer$[head][head + 4]] == 3) && !(head == #memory_$Pointer$[head][4])) && #memory_$Pointer$[head][8] == 0) && i + 1 <= len) && head == 0) && len <= 2) && i == 1) && #NULL <= 0) && data <= 1) && index <= 1) && index <= 0) && 0 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && !(0 == #memory_$Pointer$[head][4])) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0)) || ((((((((((((((((((((((((((((1 <= data && unknown-#memory_int-unknown[head][head] == expected) && !(0 == #memory_$Pointer$[s][4])) && i == 0) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && i + 1 <= len) && head == 0) && len <= 2) && #NULL <= 0) && data <= 1) && unknown-#memory_int-unknown[s][s] == len) && index <= 0) && 0 <= i) && data == 1) && \old(len) <= 2) && 2 == unknown-#memory_int-unknown[head][head]) && index == 0) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0) [2022-11-16 20:30:46,346 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 20:30:46,347 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 20:30:46,347 INFO L158 Benchmark]: Toolchain (without parser) took 61518.05ms. Allocated memory was 153.1MB in the beginning and 497.0MB in the end (delta: 343.9MB). Free memory was 116.4MB in the beginning and 187.7MB in the end (delta: -71.4MB). Peak memory consumption was 272.7MB. Max. memory is 16.1GB. [2022-11-16 20:30:46,347 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 153.1MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:30:46,347 INFO L158 Benchmark]: CACSL2BoogieTranslator took 635.38ms. Allocated memory is still 153.1MB. Free memory was 116.2MB in the beginning and 120.4MB in the end (delta: -4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 20:30:46,348 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.35ms. Allocated memory is still 153.1MB. Free memory was 120.4MB in the beginning and 118.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:30:46,348 INFO L158 Benchmark]: Boogie Preprocessor took 60.80ms. Allocated memory is still 153.1MB. Free memory was 118.2MB in the beginning and 116.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:30:46,348 INFO L158 Benchmark]: RCFGBuilder took 531.45ms. Allocated memory is still 153.1MB. Free memory was 116.2MB in the beginning and 97.9MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-16 20:30:46,348 INFO L158 Benchmark]: TraceAbstraction took 60142.25ms. Allocated memory was 153.1MB in the beginning and 497.0MB in the end (delta: 343.9MB). Free memory was 97.3MB in the beginning and 190.9MB in the end (delta: -93.5MB). Peak memory consumption was 275.4MB. Max. memory is 16.1GB. [2022-11-16 20:30:46,348 INFO L158 Benchmark]: Witness Printer took 51.59ms. Allocated memory is still 497.0MB. Free memory was 190.9MB in the beginning and 187.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 20:30:46,349 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 153.1MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 635.38ms. Allocated memory is still 153.1MB. Free memory was 116.2MB in the beginning and 120.4MB in the end (delta: -4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.35ms. Allocated memory is still 153.1MB. Free memory was 120.4MB in the beginning and 118.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.80ms. Allocated memory is still 153.1MB. Free memory was 118.2MB in the beginning and 116.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 531.45ms. Allocated memory is still 153.1MB. Free memory was 116.2MB in the beginning and 97.9MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 60142.25ms. Allocated memory was 153.1MB in the beginning and 497.0MB in the end (delta: 343.9MB). Free memory was 97.3MB in the beginning and 190.9MB in the end (delta: -93.5MB). Peak memory consumption was 275.4MB. Max. memory is 16.1GB. * Witness Printer took 51.59ms. Allocated memory is still 497.0MB. Free memory was 190.9MB in the beginning and 187.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1501,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1501,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * 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: 641]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.0s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 432 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 432 mSDsluCounter, 381 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 293 IncrementalHoareTripleChecker+Unchecked, 300 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1149 IncrementalHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 81 mSDtfsCounter, 1149 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 598 GetRequests, 337 SyntacticMatches, 23 SemanticMatches, 238 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2175 ImplicationChecksByTransitivity, 19.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=10, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 66 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 13 PreInvPairs, 30 NumberOfFragments, 1692 HoareAnnotationTreeSize, 13 FomulaSimplifications, 2775 FormulaSimplificationTreeSizeReduction, 2.6s HoareSimplificationTime, 11 FomulaSimplificationsInter, 48866 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 401 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 526 ConstructedInterpolants, 13 QuantifiedInterpolants, 3452 SizeOfPredicates, 85 NumberOfNonLiveVariables, 2554 ConjunctsInSsa, 227 ConjunctsInUnsatCore, 32 InterpolantComputations, 4 PerfectInterpolantSequences, 225/344 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: 3.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 14, TOOLS_POST_TIME: 3.5s, 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: 14, TOOLS_QUANTIFIERELIM_TIME: 3.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 1.9s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 27, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 3.6s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.6s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, 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: 62, DAG_COMPRESSION_RETAINED_NODES: 28, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 633]: Loop Invariant [2022-11-16 20:30:46,370 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,370 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,370 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,371 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,371 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,371 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,371 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,372 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,372 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,372 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,374 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,374 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,374 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,375 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,375 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,375 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,375 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,376 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,376 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,376 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((((((((((((((((((((((((1 <= data && !(0 == #memory_$Pointer$[s][4])) && i == 0) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && len <= 2) && #NULL <= 0) && data <= 1) && unknown-#memory_int-unknown[s][s] == len) && index <= 0) && 0 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0) || (((((((((((((((((((((((1 <= data && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && len <= 2) && i == 1) && #NULL <= 0) && index <= 0) && data <= 1) && index <= 0) && 0 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0)) || (((((((((((((((((1 <= data && 2 <= \old(len)) && len <= 2) && #NULL <= 0) && data <= 1) && index <= 0) && 0 <= i) && 2 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 611]: Loop Invariant [2022-11-16 20:30:46,377 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,378 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,378 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,378 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,379 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,379 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,379 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,379 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,380 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,380 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,380 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,381 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,381 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,381 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,382 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,382 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,382 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,382 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,383 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,383 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,383 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,383 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,385 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,385 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,386 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,386 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,386 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,386 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,387 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,387 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,387 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,388 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,388 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,388 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,389 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,389 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,389 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,389 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,390 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,390 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,390 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,390 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,391 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,391 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((((((((((((((((((((((((((((1 <= data && unknown-#memory_int-unknown[head][head] == expected) && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && i + 1 <= len) && len <= 2) && i == 1) && #NULL <= 0) && index <= 0) && data <= 1) && index <= 0) && 0 <= i) && 3 == unknown-#memory_int-unknown[head][head]) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && !(head == 0)) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0) || (((((((((((((((((((((((((((((((1 <= index && 1 <= data) && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && unknown-#memory_int-unknown[#memory_$Pointer$[head][head + 4]][#memory_$Pointer$[head][head + 4]] == expected) && !(s == #memory_$Pointer$[s][4])) && unknown-#memory_int-unknown[#memory_$Pointer$[head][head + 4]][#memory_$Pointer$[head][head + 4]] == 3) && !(head == #memory_$Pointer$[head][4])) && #memory_$Pointer$[head][8] == 0) && i + 1 <= len) && head == 0) && len <= 2) && i == 1) && #NULL <= 0) && data <= 1) && index <= 1) && index <= 0) && 0 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && !(0 == #memory_$Pointer$[head][4])) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0)) || ((((((((((((((((((((((((((((1 <= data && unknown-#memory_int-unknown[head][head] == expected) && !(0 == #memory_$Pointer$[s][4])) && i == 0) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && i + 1 <= len) && head == 0) && len <= 2) && #NULL <= 0) && data <= 1) && unknown-#memory_int-unknown[s][s] == len) && index <= 0) && 0 <= i) && data == 1) && \old(len) <= 2) && 2 == unknown-#memory_int-unknown[head][head]) && index == 0) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0) - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 587]: Loop Invariant [2022-11-16 20:30:46,393 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,393 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,393 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,394 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,394 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,395 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: (((((((((((((((1 <= data && 2 <= \old(len)) && #NULL <= 0) && data <= 1) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && len == len) && #NULL == 0) || ((((((((((((((((((((new_head == 0 && 1 <= data) && 2 <= \old(len)) && !(head == 0)) && \valid[head] == 1) && \valid[new_head] == 1) && len <= 2) && #NULL <= 0) && data <= 1) && 1 <= len) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && !(new_head == 0)) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((new_head == 0 && 1 <= data) && 2 <= \old(len)) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && \valid[head] == 1) && \valid[new_head] == 1) && len <= 2) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 629]: Loop Invariant [2022-11-16 20:30:46,396 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,396 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,396 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,397 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,397 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,397 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,397 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,398 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,398 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,398 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,399 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,399 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,399 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,400 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,401 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,401 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,401 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,402 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,402 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,402 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,402 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,403 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,403 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,403 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,404 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,404 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,404 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,405 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: (((((((((((((((((((((((1 <= data && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && len <= 2) && #NULL <= 0) && data <= 1) && unknown-#memory_int-unknown[s][s] == len) && index <= 0) && 2 <= i) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s + 4]][#memory_$Pointer$[s][s + 4]] == len + 1) && s == 0) && #NULL == 0) || (((((((((((((((((((((((((((((((((new_head == 0 && 1 <= data) && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && !(head == 0)) && 1 <= i) && !(head == #memory_$Pointer$[head][4])) && s == head) && \valid[head] == 1) && \valid[new_head] == 1) && len <= 2) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && unknown-#memory_int-unknown[s][s] == len) && len == data) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && !(new_head == 0)) && \old(data) <= 1) && head <= 0) && 0 <= head) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && i <= 1) && s == head) && 0 <= unknown-#StackHeapBarrier-unknown) && index == 0) && s == 0) && #NULL == 0)) || ((((((((((((((((((((((((((new_head == 0 && 1 <= data) && i == 0) && 2 <= \old(len)) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && \valid[head] == 1) && \valid[new_head] == 1) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && head == \result) && \result == s) && data == 1) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && \result == s) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && s == 0) && #NULL == 0) - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 618]: Loop Invariant [2022-11-16 20:30:46,406 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,407 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,407 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1501,QUANTIFIED] [2022-11-16 20:30:46,407 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,408 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,408 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,408 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,408 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,409 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,409 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,409 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,410 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,410 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,410 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,411 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,411 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,411 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,412 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,412 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,413 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,413 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,414 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ArrVal_1501,QUANTIFIED] [2022-11-16 20:30:46,414 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,414 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,415 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-16 20:30:46,415 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,415 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,415 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,416 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,416 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,416 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,417 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,417 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,428 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,428 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,428 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,429 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-16 20:30:46,429 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: ((((((((((((((((((((((((((((((((new_head == 0 && 1 <= data) && 2 <= \old(len)) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && \valid[head] == 1) && \valid[new_head] == 1) && (forall v_ArrVal_1501 : [int]int :: #memory_$Pointer$[head := v_ArrVal_1501][s][s + 4] == head)) && len <= 2) && data <= len + 1) && i == 1) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && unknown-#memory_int-unknown[s][s] == len) && index <= 0) && len + 1 <= data) && data == 1) && !(head == 0)) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && head == #memory_$Pointer$[s][s + 4]) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && s == 0) && #NULL == 0) || ((((((((((((((((((((((((((((((((new_head == 0 && 1 <= data) && 1 <= index) && !(0 == #memory_$Pointer$[s][4])) && 2 <= \old(len)) && !(s == #memory_$Pointer$[s][4])) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && s == head) && \valid[head] == 1) && len + 1 == data) && \valid[new_head] == 1) && index <= 1) && len <= 2) && i == 1) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && unknown-#memory_int-unknown[s][s] == len) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && s == head) && 0 <= unknown-#StackHeapBarrier-unknown) && s == 0) && #NULL == 0)) || (((((((((((((((((((((((((((((((new_head == 0 && 1 <= data) && !(0 == #memory_$Pointer$[s][4])) && i == 0) && 2 <= \old(len)) && !(head == 0)) && !(head == #memory_$Pointer$[head][4])) && s == head) && \valid[head] == 1) && \valid[new_head] == 1) && len <= 2) && #NULL <= 0) && data <= 1) && !(#memory_$Pointer$[head][4] == 0)) && !(#memory_$Pointer$[head][4] == head)) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && #memory_$Pointer$[s][8] == 0) && len == 2) && !(new_head == 0)) && head == 0) && \old(data) <= 1) && data <= len + i) && #memory_$Pointer$[head][8] == 0) && 0 <= #NULL) && s == head) && 0 <= unknown-#StackHeapBarrier-unknown) && len + i <= data) && index == 0) && s == 0) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-11-16 20:30:46,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2b8f47-3fb0-4a80-aeae-7a8ca2759b1e/bin/utaipan-Xvt2sAort0/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