./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2n_append_unequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_append_unequal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI --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 8e4e2611155a39995b0fc64ec45d64e4c98f789d2737326ee819380629347be0 --- 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-5e519f3 [2022-11-03 04:04:32,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:04:32,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:04:32,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:04:32,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:04:32,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:04:32,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:04:32,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:04:32,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:04:32,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:04:32,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:04:32,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:04:32,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:04:32,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:04:32,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:04:32,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:04:32,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:04:32,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:04:32,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:04:32,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:04:32,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:04:32,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:04:32,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:04:32,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:04:32,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:04:32,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:04:32,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:04:32,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:04:32,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:04:32,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:04:32,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:04:32,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:04:32,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:04:32,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:04:32,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:04:32,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:04:32,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:04:32,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:04:32,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:04:32,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:04:32,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:04:32,428 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 04:04:32,474 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:04:32,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:04:32,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:04:32,475 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:04:32,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:04:32,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:04:32,477 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:04:32,478 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:04:32,478 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:04:32,478 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:04:32,479 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:04:32,480 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:04:32,480 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:04:32,480 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:04:32,481 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:04:32,481 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:04:32,481 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:04:32,482 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:04:32,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:04:32,483 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 04:04:32,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:04:32,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 04:04:32,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:04:32,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:04:32,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:04:32,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:04:32,486 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 04:04:32,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:04:32,487 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:04:32,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:04:32,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:04:32,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:04:32,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:04:32,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:04:32,489 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:04:32,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:04:32,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:04:32,490 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:04:32,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:04:32,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:04:32,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:04:32,491 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_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e4e2611155a39995b0fc64ec45d64e4c98f789d2737326ee819380629347be0 [2022-11-03 04:04:32,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:04:32,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:04:32,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:04:32,832 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:04:32,833 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:04:32,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/list-simple/dll2n_append_unequal.i [2022-11-03 04:04:32,930 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/data/c00e4fa71/7fb595567e144640a0af66e581d7c799/FLAGa713f9074 [2022-11-03 04:04:33,602 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:04:33,603 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/sv-benchmarks/c/list-simple/dll2n_append_unequal.i [2022-11-03 04:04:33,632 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/data/c00e4fa71/7fb595567e144640a0af66e581d7c799/FLAGa713f9074 [2022-11-03 04:04:33,843 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/data/c00e4fa71/7fb595567e144640a0af66e581d7c799 [2022-11-03 04:04:33,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:04:33,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:04:33,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:04:33,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:04:33,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:04:33,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:04:33" (1/1) ... [2022-11-03 04:04:33,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@677bedd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:33, skipping insertion in model container [2022-11-03 04:04:33,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:04:33" (1/1) ... [2022-11-03 04:04:33,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:04:33,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:04:34,382 WARN L230 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_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/sv-benchmarks/c/list-simple/dll2n_append_unequal.i[24457,24470] [2022-11-03 04:04:34,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:04:34,393 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:04:34,440 WARN L230 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_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/sv-benchmarks/c/list-simple/dll2n_append_unequal.i[24457,24470] [2022-11-03 04:04:34,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:04:34,468 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:04:34,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:34 WrapperNode [2022-11-03 04:04:34,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:04:34,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:04:34,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:04:34,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:04:34,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:34" (1/1) ... [2022-11-03 04:04:34,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:34" (1/1) ... [2022-11-03 04:04:34,523 INFO L138 Inliner]: procedures = 127, calls = 40, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 138 [2022-11-03 04:04:34,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:04:34,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:04:34,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:04:34,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:04:34,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:34" (1/1) ... [2022-11-03 04:04:34,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:34" (1/1) ... [2022-11-03 04:04:34,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:34" (1/1) ... [2022-11-03 04:04:34,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:34" (1/1) ... [2022-11-03 04:04:34,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:34" (1/1) ... [2022-11-03 04:04:34,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:34" (1/1) ... [2022-11-03 04:04:34,553 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:34" (1/1) ... [2022-11-03 04:04:34,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:34" (1/1) ... [2022-11-03 04:04:34,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:04:34,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:04:34,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:04:34,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:04:34,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:34" (1/1) ... [2022-11-03 04:04:34,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:04:34,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:04:34,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:04:34,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:04:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 04:04:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:04:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-11-03 04:04:34,644 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-11-03 04:04:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:04:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:04:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:04:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 04:04:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 04:04:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:04:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 04:04:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:04:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:04:34,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:04:34,833 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:04:34,835 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:04:35,225 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:04:35,295 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:04:35,301 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-03 04:04:35,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:04:35 BoogieIcfgContainer [2022-11-03 04:04:35,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:04:35,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:04:35,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:04:35,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:04:35,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:04:33" (1/3) ... [2022-11-03 04:04:35,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263d197e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:04:35, skipping insertion in model container [2022-11-03 04:04:35,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:34" (2/3) ... [2022-11-03 04:04:35,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263d197e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:04:35, skipping insertion in model container [2022-11-03 04:04:35,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:04:35" (3/3) ... [2022-11-03 04:04:35,316 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_append_unequal.i [2022-11-03 04:04:35,338 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:04:35,338 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:04:35,431 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:04:35,443 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;@2ecc100a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:04:35,445 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:04:35,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 04:04:35,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 04:04:35,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:35,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:35,464 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:35,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:35,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1645558503, now seen corresponding path program 1 times [2022-11-03 04:04:35,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:35,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927659882] [2022-11-03 04:04:35,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:35,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:35,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:04:35,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:35,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927659882] [2022-11-03 04:04:35,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927659882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:35,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:35,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:04:35,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845119175] [2022-11-03 04:04:35,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:35,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:04:35,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:36,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:04:36,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:04:36,008 INFO L87 Difference]: Start difference. First operand has 27 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 04:04:36,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:36,093 INFO L93 Difference]: Finished difference Result 53 states and 77 transitions. [2022-11-03 04:04:36,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:04:36,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-03 04:04:36,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:36,105 INFO L225 Difference]: With dead ends: 53 [2022-11-03 04:04:36,105 INFO L226 Difference]: Without dead ends: 26 [2022-11-03 04:04:36,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:04:36,112 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 1 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:36,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 59 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:04:36,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-03 04:04:36,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-11-03 04:04:36,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 04:04:36,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2022-11-03 04:04:36,161 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 12 [2022-11-03 04:04:36,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:36,161 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2022-11-03 04:04:36,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 04:04:36,162 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2022-11-03 04:04:36,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 04:04:36,163 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:36,163 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:36,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:04:36,164 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:36,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:36,165 INFO L85 PathProgramCache]: Analyzing trace with hash 915268386, now seen corresponding path program 1 times [2022-11-03 04:04:36,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:36,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534933107] [2022-11-03 04:04:36,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:36,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:36,468 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 04:04:36,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:36,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534933107] [2022-11-03 04:04:36,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534933107] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:04:36,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498218660] [2022-11-03 04:04:36,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:36,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:04:36,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:04:36,473 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:04:36,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:04:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:36,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:04:36,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:04:36,815 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:04:36,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:04:36,860 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 04:04:36,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498218660] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:04:36,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1823354902] [2022-11-03 04:04:36,897 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-03 04:04:36,897 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:04:36,903 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:04:36,909 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:04:36,911 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:04:37,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,035 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:04:37,036 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 04:04:37,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,057 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:04:37,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:04:37,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:04:37,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2022-11-03 04:04:37,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2022-11-03 04:04:37,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2022-11-03 04:04:37,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,266 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 04:04:37,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 04:04:37,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,388 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 04:04:37,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,417 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 04:04:37,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:04:37,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,616 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 219 [2022-11-03 04:04:37,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:04:37,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:04:37,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 210 [2022-11-03 04:04:37,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:04:37,781 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 04:04:37,782 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 348 treesize of output 347 [2022-11-03 04:04:37,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:04:37,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,831 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:04:37,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:37,848 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 115 [2022-11-03 04:04:37,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 156 [2022-11-03 04:04:37,935 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 74 treesize of output 32 [2022-11-03 04:04:37,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:04:37,959 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 [2022-11-03 04:04:37,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 77 treesize of output 33 [2022-11-03 04:04:37,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16 [2022-11-03 04:04:38,006 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:04:38,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:04:38,122 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 04:04:38,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 04:04:38,157 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:04:38,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:04:38,248 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:04:38,261 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:04:38,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:04:38,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 04:04:38,308 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 04:04:38,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:38,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:38,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:38,419 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-03 04:04:38,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:38,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:04:38,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:38,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:38,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 160 [2022-11-03 04:04:38,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:38,504 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 7 [2022-11-03 04:04:38,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:38,563 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 11 [2022-11-03 04:04:38,613 INFO L356 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-03 04:04:38,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-03 04:04:38,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:04:38,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:38,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:38,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:38,655 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 47 treesize of output 31 [2022-11-03 04:04:38,849 INFO L356 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-03 04:04:38,850 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 55 [2022-11-03 04:04:38,870 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 3 [2022-11-03 04:04:38,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:38,887 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 04:04:38,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 39 [2022-11-03 04:04:39,360 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:04:39,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 3 [2022-11-03 04:04:39,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 3 [2022-11-03 04:04:39,397 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:04:39,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:04:39,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:39,823 INFO L356 Elim1Store]: treesize reduction 69, result has 18.8 percent of original size [2022-11-03 04:04:39,824 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 324 treesize of output 263 [2022-11-03 04:04:39,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:39,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:39,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:39,887 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:04:39,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 215 treesize of output 196 [2022-11-03 04:04:39,937 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:04:39,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 5 [2022-11-03 04:04:39,980 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 25 [2022-11-03 04:04:39,992 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 [2022-11-03 04:04:40,013 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:04:40,015 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:04:40,017 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:04:40,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:40,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:04:40,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:40,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:40,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-03 04:04:40,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:40,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:40,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:40,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 137 [2022-11-03 04:04:40,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:40,191 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 7 [2022-11-03 04:04:40,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:40,233 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 11 [2022-11-03 04:04:40,322 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-03 04:04:40,322 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 197 treesize of output 174 [2022-11-03 04:04:40,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:40,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 156 treesize of output 126 [2022-11-03 04:04:40,418 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 04:04:40,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 190 treesize of output 149 [2022-11-03 04:04:40,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:40,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 149 treesize of output 119 [2022-11-03 04:04:40,579 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:04:40,592 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:04:40,689 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:04:40,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:04:40,915 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:04:40,948 INFO L356 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-03 04:04:40,949 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 232 treesize of output 220 [2022-11-03 04:04:40,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:40,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:40,981 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:04:40,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 227 treesize of output 213 [2022-11-03 04:04:41,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:41,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:41,017 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:04:41,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 227 treesize of output 213 [2022-11-03 04:04:41,339 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 49 for LOIs [2022-11-03 04:04:41,507 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:04:50,261 WARN L234 SmtUtils]: Spent 7.30s on a formula simplification. DAG size of input: 92 DAG size of output: 83 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:04:52,661 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '245#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (= |ULTIMATE.start_dll_create_~head~0#1.offset| |ULTIMATE.start_dll_create_#res#1.offset|) (= (select |#length| |ULTIMATE.start_dll_append_~new_last~0#1.base|) 12) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8)) 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (or (= (select (select |#memory_int| |ULTIMATE.start_dll_append_~new_last~0#1.base|) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) |ULTIMATE.start_dll_append_~data#1|) (= |ULTIMATE.start_dll_append_~head#1.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (< |ULTIMATE.start_dll_append_~new_last~0#1.base| |#StackHeapBarrier|) (= |ULTIMATE.start_dll_append_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (= (select |#valid| |ULTIMATE.start_dll_append_~new_last~0#1.base|) 1) (<= |#NULL.offset| 0) (not (= |ULTIMATE.start_dll_append_~new_last~0#1.base| 0)) (= |ULTIMATE.start_main_~uneq~0#1| |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8)) 0) (= |ULTIMATE.start_dll_create_~head~0#1.base| |ULTIMATE.start_dll_create_#res#1.base|) (<= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (= |ULTIMATE.start_dll_append_#in~head#1.offset| |ULTIMATE.start_dll_append_~head#1.offset|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 0 |#NULL.offset|) (= |ULTIMATE.start_dll_append_~head#1.base| |ULTIMATE.start_dll_append_#in~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0) (= |#NULL.base| 0))' at error location [2022-11-03 04:04:52,661 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:04:52,662 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:04:52,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2022-11-03 04:04:52,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247958168] [2022-11-03 04:04:52,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:04:52,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:04:52,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:04:52,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:04:52,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:04:52,665 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 04:04:52,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:52,734 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2022-11-03 04:04:52,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:04:52,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 18 [2022-11-03 04:04:52,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:52,736 INFO L225 Difference]: With dead ends: 46 [2022-11-03 04:04:52,736 INFO L226 Difference]: Without dead ends: 27 [2022-11-03 04:04:52,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:04:52,738 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 2 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:52,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 74 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:04:52,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-03 04:04:52,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-03 04:04:52,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:04:52,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2022-11-03 04:04:52,744 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 18 [2022-11-03 04:04:52,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:52,744 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-11-03 04:04:52,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 04:04:52,744 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2022-11-03 04:04:52,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 04:04:52,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:52,746 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:52,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 04:04:52,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-03 04:04:52,951 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:52,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:52,951 INFO L85 PathProgramCache]: Analyzing trace with hash 418919197, now seen corresponding path program 2 times [2022-11-03 04:04:52,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:04:52,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924754004] [2022-11-03 04:04:52,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:52,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:53,549 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 04:04:53,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:04:53,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924754004] [2022-11-03 04:04:53,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924754004] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:04:53,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206520910] [2022-11-03 04:04:53,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 04:04:53,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:04:53,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:04:53,551 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:04:53,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:04:53,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 04:04:53,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:04:53,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-03 04:04:53,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:04:53,912 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 8 treesize of output 4 [2022-11-03 04:04:53,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:53,964 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 17 [2022-11-03 04:04:54,045 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 04:04:54,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:04:54,120 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_append_#t~ret7#1.base_16| Int) (v_ArrVal_372 (Array Int Int))) (or (not (< |v_ULTIMATE.start_dll_append_#t~ret7#1.base_16| |c_#StackHeapBarrier|)) (not (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_16| v_ArrVal_372) |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 0)))) is different from false [2022-11-03 04:04:54,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206520910] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:04:54,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1082024060] [2022-11-03 04:04:54,127 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-03 04:04:54,128 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:04:54,128 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:04:54,130 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:04:54,130 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:04:54,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,176 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:04:54,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 04:04:54,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,190 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:04:54,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:04:54,239 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:04:54,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2022-11-03 04:04:54,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,262 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2022-11-03 04:04:54,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,284 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2022-11-03 04:04:54,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 04:04:54,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 04:04:54,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 04:04:54,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 04:04:54,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:04:54,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 31 treesize of output 30 [2022-11-03 04:04:54,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 11 [2022-11-03 04:04:54,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:04:54,468 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 31 treesize of output 30 [2022-11-03 04:04:54,523 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:04:54,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,534 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 04:04:54,545 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:04:54,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 04:04:54,568 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:04:54,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:04:54,638 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:04:54,648 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:04:54,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 04:04:54,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 04:04:54,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,773 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-03 04:04:54,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 7 [2022-11-03 04:04:54,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:04:54,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,838 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 155 [2022-11-03 04:04:54,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,875 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 11 [2022-11-03 04:04:54,901 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 04:04:54,902 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-03 04:04:54,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,914 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2022-11-03 04:04:54,961 INFO L356 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-03 04:04:54,961 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-03 04:04:54,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:04:54,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:54,995 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 47 treesize of output 31 [2022-11-03 04:04:55,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:04:55,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:55,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:55,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:55,404 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:04:55,404 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 181 treesize of output 146 [2022-11-03 04:04:55,435 INFO L356 Elim1Store]: treesize reduction 37, result has 30.2 percent of original size [2022-11-03 04:04:55,436 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 132 treesize of output 103 [2022-11-03 04:04:55,470 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 72 treesize of output 56 [2022-11-03 04:04:55,479 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 56 treesize of output 48 [2022-11-03 04:04:55,493 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:04:55,497 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:04:55,499 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:04:55,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:55,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:55,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:55,746 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:04:55,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 181 treesize of output 146 [2022-11-03 04:04:55,777 INFO L356 Elim1Store]: treesize reduction 37, result has 30.2 percent of original size [2022-11-03 04:04:55,778 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 132 treesize of output 103 [2022-11-03 04:04:55,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2022-11-03 04:04:55,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 26 [2022-11-03 04:04:55,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:04:55,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:04:55,842 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:04:55,845 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:04:55,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:55,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:55,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:55,913 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-03 04:04:55,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:55,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:04:55,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:55,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:55,948 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 155 [2022-11-03 04:04:55,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:55,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 7 [2022-11-03 04:04:56,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:56,014 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 11 [2022-11-03 04:04:56,041 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 04:04:56,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-03 04:04:56,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:56,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2022-11-03 04:04:56,123 INFO L356 Elim1Store]: treesize reduction 28, result has 22.2 percent of original size [2022-11-03 04:04:56,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 190 treesize of output 153 [2022-11-03 04:04:56,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:04:56,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:56,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:56,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:04:56,149 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 147 treesize of output 107 [2022-11-03 04:04:56,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:04:56,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:04:56,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:04:56,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:04:56,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-03 04:04:56,473 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:04:56,482 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-03 04:04:56,592 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 49 for LOIs [2022-11-03 04:04:56,702 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:05:04,402 WARN L234 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 92 DAG size of output: 83 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:05:05,381 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '468#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0) (= |#NULL.base| 0))' at error location [2022-11-03 04:05:05,381 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:05:05,381 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:05:05,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 20 [2022-11-03 04:05:05,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230611693] [2022-11-03 04:05:05,382 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:05:05,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:05:05,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:05:05,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:05:05,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1009, Unknown=1, NotChecked=64, Total=1190 [2022-11-03 04:05:05,384 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 20 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 15 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-03 04:05:05,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:05,642 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2022-11-03 04:05:05,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:05:05,643 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 15 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 24 [2022-11-03 04:05:05,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:05,644 INFO L225 Difference]: With dead ends: 37 [2022-11-03 04:05:05,644 INFO L226 Difference]: Without dead ends: 27 [2022-11-03 04:05:05,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=140, Invalid=1195, Unknown=1, NotChecked=70, Total=1406 [2022-11-03 04:05:05,646 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:05,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 191 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 143 Invalid, 0 Unknown, 7 Unchecked, 0.2s Time] [2022-11-03 04:05:05,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-03 04:05:05,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-03 04:05:05,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:05:05,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2022-11-03 04:05:05,661 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 24 [2022-11-03 04:05:05,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:05,661 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2022-11-03 04:05:05,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 15 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-03 04:05:05,662 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-11-03 04:05:05,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 04:05:05,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:05,663 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:05,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-03 04:05:05,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:05:05,879 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:05,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:05,880 INFO L85 PathProgramCache]: Analyzing trace with hash 66836649, now seen corresponding path program 1 times [2022-11-03 04:05:05,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:05:05,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378941639] [2022-11-03 04:05:05,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:05,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:07,824 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:05:07,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:05:07,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378941639] [2022-11-03 04:05:07,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378941639] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:05:07,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206569548] [2022-11-03 04:05:07,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:07,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:05:07,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:05:07,835 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:05:07,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 04:05:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:08,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 90 conjunts are in the unsatisfiable core [2022-11-03 04:05:08,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:08,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-03 04:05:08,085 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:05:08,162 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 04:05:08,163 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-03 04:05:08,277 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:05:08,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 [2022-11-03 04:05:08,405 INFO L356 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-03 04:05:08,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2022-11-03 04:05:08,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 11 [2022-11-03 04:05:08,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2022-11-03 04:05:08,523 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 04:05:08,523 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2022-11-03 04:05:08,690 INFO L356 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-11-03 04:05:08,691 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 30 [2022-11-03 04:05:08,701 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:05:08,701 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 04:05:08,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:08,825 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:05:08,825 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 91 treesize of output 79 [2022-11-03 04:05:08,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:08,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 66 treesize of output 64 [2022-11-03 04:05:08,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:08,862 INFO L356 Elim1Store]: treesize reduction 30, result has 47.4 percent of original size [2022-11-03 04:05:08,862 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 39 treesize of output 39 [2022-11-03 04:05:09,234 INFO L356 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-03 04:05:09,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 75 treesize of output 69 [2022-11-03 04:05:09,277 INFO L356 Elim1Store]: treesize reduction 114, result has 15.6 percent of original size [2022-11-03 04:05:09,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 108 treesize of output 66 [2022-11-03 04:05:09,335 INFO L356 Elim1Store]: treesize reduction 62, result has 24.4 percent of original size [2022-11-03 04:05:09,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 130 treesize of output 120 [2022-11-03 04:05:09,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:09,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 73 treesize of output 71 [2022-11-03 04:05:09,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 44 treesize of output 32 [2022-11-03 04:05:09,414 INFO L356 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-11-03 04:05:09,415 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 23 [2022-11-03 04:05:09,451 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:05:09,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:05:14,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206569548] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:05:14,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1861951152] [2022-11-03 04:05:14,204 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-03 04:05:14,204 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:05:14,205 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:05:14,205 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:05:14,205 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:05:14,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,243 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:05:14,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 04:05:14,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,257 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:05:14,287 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:05:14,291 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:05:14,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2022-11-03 04:05:14,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,309 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2022-11-03 04:05:14,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,325 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2022-11-03 04:05:14,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,351 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 04:05:14,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,362 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 04:05:14,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 04:05:14,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 04:05:14,538 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:14,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 219 [2022-11-03 04:05:14,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:14,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:14,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 210 [2022-11-03 04:05:14,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:14,701 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 04:05:14,702 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 348 treesize of output 347 [2022-11-03 04:05:14,725 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:14,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,731 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:14,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:14,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 115 [2022-11-03 04:05:14,771 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 156 [2022-11-03 04:05:14,805 INFO L356 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-03 04:05:14,806 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 135 treesize of output 90 [2022-11-03 04:05:14,821 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 71 treesize of output 33 [2022-11-03 04:05:14,830 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16 [2022-11-03 04:05:14,841 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:05:14,850 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2022-11-03 04:05:14,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:05:14,920 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 04:05:14,930 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:05:14,942 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 04:05:14,955 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:05:14,969 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:15,023 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:15,034 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:05:15,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 04:05:15,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:05:15,087 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 04:05:15,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:15,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:15,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:15,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-03 04:05:15,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:15,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 7 [2022-11-03 04:05:15,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:15,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:15,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:15,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:15,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 155 [2022-11-03 04:05:15,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:15,270 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 11 [2022-11-03 04:05:15,328 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-03 04:05:15,329 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 197 treesize of output 174 [2022-11-03 04:05:15,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:15,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 156 treesize of output 126 [2022-11-03 04:05:15,389 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 04:05:15,390 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 190 treesize of output 149 [2022-11-03 04:05:15,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:15,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 149 treesize of output 119 [2022-11-03 04:05:15,701 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:15,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:15,716 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:05:15,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 88 [2022-11-03 04:05:15,733 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-03 04:05:15,733 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 69 [2022-11-03 04:05:15,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:15,756 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:05:15,758 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:05:16,013 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:16,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:16,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 148 treesize of output 110 [2022-11-03 04:05:16,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:16,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 204 treesize of output 112 [2022-11-03 04:05:16,074 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:16,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:16,087 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 12 [2022-11-03 04:05:16,111 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:16,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:16,122 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 12 [2022-11-03 04:05:16,137 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:05:16,138 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:05:16,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:16,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:16,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:16,203 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-03 04:05:16,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:16,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:16,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:16,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:16,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 155 [2022-11-03 04:05:16,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:16,264 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 7 [2022-11-03 04:05:16,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:16,297 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 11 [2022-11-03 04:05:16,385 INFO L356 Elim1Store]: treesize reduction 28, result has 22.2 percent of original size [2022-11-03 04:05:16,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 211 treesize of output 174 [2022-11-03 04:05:16,400 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:05:16,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:16,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:16,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:16,413 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 168 treesize of output 128 [2022-11-03 04:05:16,455 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 04:05:16,455 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 190 treesize of output 149 [2022-11-03 04:05:16,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:16,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 149 treesize of output 119 [2022-11-03 04:05:16,596 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:16,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:16,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:16,679 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:17,076 INFO L356 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2022-11-03 04:05:17,076 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 220 treesize of output 210 [2022-11-03 04:05:17,102 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:17,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:17,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:17,226 INFO L356 Elim1Store]: treesize reduction 112, result has 23.3 percent of original size [2022-11-03 04:05:17,227 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 259 treesize of output 238 [2022-11-03 04:05:17,273 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:17,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:17,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:17,351 INFO L356 Elim1Store]: treesize reduction 114, result has 21.9 percent of original size [2022-11-03 04:05:17,351 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 251 treesize of output 228 [2022-11-03 04:05:17,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:17,371 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 37 treesize of output 21 [2022-11-03 04:05:17,746 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 49 for LOIs [2022-11-03 04:05:17,876 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:05:27,178 WARN L234 SmtUtils]: Spent 8.30s on a formula simplification. DAG size of input: 92 DAG size of output: 83 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:05:32,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1861951152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:32,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:05:32,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [19, 21] total 50 [2022-11-03 04:05:32,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61936080] [2022-11-03 04:05:32,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:32,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 04:05:32,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:05:32,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 04:05:32,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=2865, Unknown=12, NotChecked=0, Total=3080 [2022-11-03 04:05:32,035 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 16 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 04:05:32,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:32,515 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2022-11-03 04:05:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 04:05:32,515 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-11-03 04:05:32,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:32,516 INFO L225 Difference]: With dead ends: 43 [2022-11-03 04:05:32,517 INFO L226 Difference]: Without dead ends: 40 [2022-11-03 04:05:32,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=203, Invalid=2865, Unknown=12, NotChecked=0, Total=3080 [2022-11-03 04:05:32,519 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 43 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 92 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:32,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 55 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 198 Invalid, 0 Unknown, 92 Unchecked, 0.5s Time] [2022-11-03 04:05:32,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-03 04:05:32,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 32. [2022-11-03 04:05:32,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:05:32,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2022-11-03 04:05:32,530 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 27 [2022-11-03 04:05:32,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:32,531 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2022-11-03 04:05:32,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 04:05:32,531 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2022-11-03 04:05:32,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-03 04:05:32,532 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:32,532 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:32,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:32,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:05:32,751 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:32,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:32,751 INFO L85 PathProgramCache]: Analyzing trace with hash -219279515, now seen corresponding path program 1 times [2022-11-03 04:05:32,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:05:32,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241979182] [2022-11-03 04:05:32,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:32,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:34,985 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:05:34,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:05:34,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241979182] [2022-11-03 04:05:34,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241979182] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:05:34,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044499415] [2022-11-03 04:05:34,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:34,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:05:34,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:05:34,988 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:05:34,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 04:05:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:35,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 112 conjunts are in the unsatisfiable core [2022-11-03 04:05:35,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:35,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:05:36,303 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:05:36,303 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-03 04:05:36,430 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2022-11-03 04:05:36,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 11 [2022-11-03 04:05:36,450 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 11 [2022-11-03 04:05:36,457 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:05:36,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 20 [2022-11-03 04:05:36,716 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:36,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:05:36,726 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:36,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:36,872 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 16 [2022-11-03 04:05:36,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:36,898 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 44 treesize of output 40 [2022-11-03 04:05:36,923 INFO L356 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-03 04:05:36,924 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2022-11-03 04:05:36,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 20 [2022-11-03 04:05:37,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:37,302 INFO L356 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2022-11-03 04:05:37,303 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 83 treesize of output 78 [2022-11-03 04:05:37,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:37,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 38 [2022-11-03 04:05:37,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:37,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:37,345 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 21 treesize of output 25 [2022-11-03 04:05:37,353 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 20 [2022-11-03 04:05:37,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 16 [2022-11-03 04:05:37,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7 [2022-11-03 04:05:37,500 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7 [2022-11-03 04:05:37,553 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:05:37,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:05:37,578 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_887 (Array Int Int)) (v_ArrVal_881 (Array Int Int)) (v_ArrVal_883 (Array Int Int)) (v_ArrVal_885 (Array Int Int)) (v_ArrVal_884 (Array Int Int)) (v_ArrVal_886 Int)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4) v_ArrVal_886)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_883) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_884) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_881) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_885) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_887) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) is different from false [2022-11-03 04:05:37,600 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_887 (Array Int Int)) (v_ArrVal_881 (Array Int Int)) (v_ArrVal_883 (Array Int Int)) (v_ArrVal_885 (Array Int Int)) (v_ArrVal_886 Int) (v_ArrVal_884 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (select (select (store (store |c_#memory_int| .cse0 (store (select |c_#memory_int| .cse0) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4) v_ArrVal_886)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_883) (select (select (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_884) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_881) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_885) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_887) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) is different from false [2022-11-03 04:05:37,611 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_887 (Array Int Int)) (v_ArrVal_881 (Array Int Int)) (v_ArrVal_883 (Array Int Int)) (v_ArrVal_885 (Array Int Int)) (v_ArrVal_886 Int) (v_ArrVal_884 (Array Int Int))) (= (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (select (select (store (store |c_#memory_int| .cse0 (store (select |c_#memory_int| .cse0) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4) v_ArrVal_886)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_883) (select (select (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_884) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_881) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_885) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_887) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) |c_ULTIMATE.start_main_~data~0#1|)) is different from false [2022-11-03 04:05:37,727 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_898 (Array Int Int)) (v_ArrVal_887 (Array Int Int)) (v_ArrVal_897 (Array Int Int)) (|v_ULTIMATE.start_dll_append_#t~ret7#1.base_24| Int) (v_ArrVal_881 (Array Int Int)) (v_ArrVal_883 (Array Int Int)) (v_ArrVal_896 (Array Int Int)) (v_ArrVal_885 (Array Int Int)) (v_ArrVal_886 Int) (v_ArrVal_884 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_24|) 0)) (not (< |v_ULTIMATE.start_dll_append_#t~ret7#1.base_24| |c_#StackHeapBarrier|)) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_24| v_ArrVal_896))) (let ((.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_24| v_ArrVal_897)) (.cse1 (select (select .cse3 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (select (select (store (let ((.cse0 (store |c_#memory_int| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_24| v_ArrVal_898))) (store .cse0 .cse1 (store (select .cse0 .cse1) (+ (select (select .cse2 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4) v_ArrVal_886))) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_24| v_ArrVal_883) (select (select (store (store .cse3 .cse1 v_ArrVal_884) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_24| v_ArrVal_881) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store .cse2 .cse1 v_ArrVal_885) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_24| v_ArrVal_887) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) is different from false [2022-11-03 04:05:37,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044499415] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:05:37,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1678388029] [2022-11-03 04:05:37,737 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-03 04:05:37,737 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:05:37,738 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:05:37,738 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:05:37,738 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:05:37,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:37,785 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:05:37,786 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 04:05:37,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:37,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:05:37,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:05:37,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:05:37,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:37,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:37,848 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2022-11-03 04:05:37,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:37,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:37,856 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2022-11-03 04:05:37,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:37,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:37,864 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2022-11-03 04:05:37,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:37,890 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 04:05:37,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:37,906 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 04:05:37,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:37,949 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 04:05:37,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:37,961 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 04:05:38,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:38,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,085 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 219 [2022-11-03 04:05:38,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:38,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:38,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 210 [2022-11-03 04:05:38,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:38,215 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 04:05:38,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 348 treesize of output 347 [2022-11-03 04:05:38,250 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:38,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,254 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:38,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,264 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 115 [2022-11-03 04:05:38,286 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 151 [2022-11-03 04:05:38,330 INFO L356 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-03 04:05:38,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 121 treesize of output 78 [2022-11-03 04:05:38,339 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:05:38,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 112 treesize of output 84 [2022-11-03 04:05:38,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,458 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2022-11-03 04:05:38,467 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:05:38,487 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7 [2022-11-03 04:05:38,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 04:05:38,508 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:05:38,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:38,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:05:38,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:38,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2022-11-03 04:05:38,598 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 04:05:38,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:05:38,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7 [2022-11-03 04:05:38,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:05:38,644 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:05:38,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,725 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:38,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-03 04:05:38,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 137 [2022-11-03 04:05:38,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,786 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 7 [2022-11-03 04:05:38,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 11 [2022-11-03 04:05:38,854 INFO L356 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-03 04:05:38,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-03 04:05:38,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:05:38,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 47 treesize of output 31 [2022-11-03 04:05:38,915 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 04:05:38,916 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-03 04:05:38,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:38,927 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2022-11-03 04:05:39,298 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:39,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:39,311 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:05:39,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:39,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:39,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:39,334 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:05:39,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 40 [2022-11-03 04:05:39,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:39,352 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:05:39,353 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 19 [2022-11-03 04:05:39,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7 [2022-11-03 04:05:39,384 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:05:39,385 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:05:39,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:39,642 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:05:39,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:39,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:39,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:39,676 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:05:39,676 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 40 [2022-11-03 04:05:39,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:39,693 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:05:39,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 19 [2022-11-03 04:05:39,707 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7 [2022-11-03 04:05:39,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:39,733 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:05:39,735 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:05:39,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:39,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:39,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:39,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-03 04:05:39,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:39,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:39,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:39,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:39,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 160 [2022-11-03 04:05:39,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:39,868 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 7 [2022-11-03 04:05:39,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:39,896 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 11 [2022-11-03 04:05:39,987 INFO L356 Elim1Store]: treesize reduction 28, result has 22.2 percent of original size [2022-11-03 04:05:39,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 195 treesize of output 158 [2022-11-03 04:05:40,003 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:05:40,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:40,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:40,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:40,034 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 152 treesize of output 112 [2022-11-03 04:05:40,070 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-03 04:05:40,070 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 49 [2022-11-03 04:05:40,080 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 3 [2022-11-03 04:05:40,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:40,092 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 04:05:40,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 33 [2022-11-03 04:05:40,226 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:40,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:40,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:40,323 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:05:40,711 INFO L356 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2022-11-03 04:05:40,712 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 220 treesize of output 210 [2022-11-03 04:05:40,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:40,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:40,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:40,916 INFO L356 Elim1Store]: treesize reduction 112, result has 23.3 percent of original size [2022-11-03 04:05:40,917 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 259 treesize of output 238 [2022-11-03 04:05:40,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:05:40,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:40,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:41,031 INFO L356 Elim1Store]: treesize reduction 114, result has 21.9 percent of original size [2022-11-03 04:05:41,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 251 treesize of output 228 [2022-11-03 04:05:41,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:05:41,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 37 treesize of output 21 [2022-11-03 04:05:42,234 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 49 for LOIs [2022-11-03 04:05:42,341 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:05:51,739 WARN L234 SmtUtils]: Spent 7.82s on a formula simplification. DAG size of input: 92 DAG size of output: 83 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:05:57,361 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '997#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= |ULTIMATE.start_main_~uneq~0#1| 5) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 5 |ULTIMATE.start_main_~uneq~0#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (<= |#NULL.base| 0) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_main_~count~0#1| 0) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#NULL.offset|) (<= 1 |ULTIMATE.start_main_~data~0#1|) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|))' at error location [2022-11-03 04:05:57,362 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:05:57,362 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:05:57,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 37 [2022-11-03 04:05:57,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642793267] [2022-11-03 04:05:57,362 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:05:57,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-03 04:05:57,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:05:57,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-03 04:05:57,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=2584, Unknown=7, NotChecked=420, Total=3192 [2022-11-03 04:05:57,365 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand has 37 states, 30 states have (on average 1.4) internal successors, (42), 28 states have internal predecessors, (42), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:58,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:58,450 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2022-11-03 04:05:58,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 04:05:58,452 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 30 states have (on average 1.4) internal successors, (42), 28 states have internal predecessors, (42), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 29 [2022-11-03 04:05:58,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:58,454 INFO L225 Difference]: With dead ends: 51 [2022-11-03 04:05:58,454 INFO L226 Difference]: Without dead ends: 49 [2022-11-03 04:05:58,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=250, Invalid=3299, Unknown=7, NotChecked=476, Total=4032 [2022-11-03 04:05:58,457 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 86 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 59 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:58,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 333 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 405 Invalid, 0 Unknown, 59 Unchecked, 0.6s Time] [2022-11-03 04:05:58,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-03 04:05:58,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 35. [2022-11-03 04:05:58,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:05:58,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2022-11-03 04:05:58,473 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 29 [2022-11-03 04:05:58,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:58,473 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2022-11-03 04:05:58,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 30 states have (on average 1.4) internal successors, (42), 28 states have internal predecessors, (42), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:58,474 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2022-11-03 04:05:58,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-03 04:05:58,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:58,475 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:58,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:58,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:05:58,678 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:58,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:58,679 INFO L85 PathProgramCache]: Analyzing trace with hash -660097916, now seen corresponding path program 1 times [2022-11-03 04:05:58,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:05:58,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472399752] [2022-11-03 04:05:58,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:58,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:05:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:01,510 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 04:06:01,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:01,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472399752] [2022-11-03 04:06:01,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472399752] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:06:01,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970162231] [2022-11-03 04:06:01,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:01,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:06:01,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:06:01,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:06:01,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 04:06:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:01,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 83 conjunts are in the unsatisfiable core [2022-11-03 04:06:01,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:01,801 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:06:02,136 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:06:02,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 [2022-11-03 04:06:02,224 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-03 04:06:02,230 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 16 [2022-11-03 04:06:02,242 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 04:06:02,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 44 treesize of output 43 [2022-11-03 04:06:02,409 INFO L356 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-11-03 04:06:02,409 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 29 [2022-11-03 04:06:02,416 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 11 treesize of output 7 [2022-11-03 04:06:02,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:02,567 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:06:02,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 92 treesize of output 80 [2022-11-03 04:06:02,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:02,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 66 treesize of output 64 [2022-11-03 04:06:02,601 INFO L356 Elim1Store]: treesize reduction 8, result has 77.1 percent of original size [2022-11-03 04:06:02,601 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 34 treesize of output 36 [2022-11-03 04:06:03,059 INFO L356 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-03 04:06:03,059 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 75 treesize of output 69 [2022-11-03 04:06:03,106 INFO L356 Elim1Store]: treesize reduction 114, result has 15.6 percent of original size [2022-11-03 04:06:03,106 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 109 treesize of output 67 [2022-11-03 04:06:03,164 INFO L356 Elim1Store]: treesize reduction 62, result has 24.4 percent of original size [2022-11-03 04:06:03,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 131 treesize of output 121 [2022-11-03 04:06:03,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:03,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 73 treesize of output 71 [2022-11-03 04:06:03,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 44 treesize of output 32 [2022-11-03 04:06:03,266 INFO L356 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-11-03 04:06:03,266 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 24 [2022-11-03 04:06:03,306 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:06:03,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:06,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970162231] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:06:06,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1209206726] [2022-11-03 04:06:06,142 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-03 04:06:06,142 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:06:06,143 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:06:06,143 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:06:06,143 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:06:06,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,177 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:06:06,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 04:06:06,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,187 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:06:06,230 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:06:06,234 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:06:06,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,256 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2022-11-03 04:06:06,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,266 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2022-11-03 04:06:06,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,276 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2022-11-03 04:06:06,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 04:06:06,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 04:06:06,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,366 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 04:06:06,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 04:06:06,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:06,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 31 treesize of output 30 [2022-11-03 04:06:06,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,436 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 11 [2022-11-03 04:06:06,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,457 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:06,458 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 31 treesize of output 30 [2022-11-03 04:06:06,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:06,527 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:06:06,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 04:06:06,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:06:06,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,568 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 04:06:06,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 04:06:06,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:06,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:06:06,655 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:06:06,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,670 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 04:06:06,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:06,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 253 treesize of output 230 [2022-11-03 04:06:06,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 238 treesize of output 221 [2022-11-03 04:06:06,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,895 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:06,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:06,946 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 04:06:06,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 357 [2022-11-03 04:06:06,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:06,985 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 242 treesize of output 225 [2022-11-03 04:06:07,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:07,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:07,007 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:07,008 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:07,030 INFO L356 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-03 04:06:07,030 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 361 treesize of output 370 [2022-11-03 04:06:07,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:07,105 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 11 [2022-11-03 04:06:07,307 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-03 04:06:07,308 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 429 treesize of output 392 [2022-11-03 04:06:07,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:07,329 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 374 treesize of output 320 [2022-11-03 04:06:07,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 236 treesize of output 186 [2022-11-03 04:06:07,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:07,646 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 186 treesize of output 164 [2022-11-03 04:06:07,667 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:06:08,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:08,088 INFO L356 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-03 04:06:08,089 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 371 treesize of output 302 [2022-11-03 04:06:08,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:08,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:08,117 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:06:08,117 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 259 treesize of output 218 [2022-11-03 04:06:08,135 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 202 treesize of output 198 [2022-11-03 04:06:08,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 198 treesize of output 194 [2022-11-03 04:06:08,168 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:06:08,187 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:06:08,190 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:06:08,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:06:08,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:08,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 04:06:08,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:08,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 115 [2022-11-03 04:06:08,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:08,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 39 [2022-11-03 04:06:08,273 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:06:08,284 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:06:08,295 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:08,583 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:08,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:08,605 INFO L356 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-03 04:06:08,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 371 treesize of output 302 [2022-11-03 04:06:08,632 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 230 treesize of output 226 [2022-11-03 04:06:08,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:08,645 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:08,652 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:06:08,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 255 treesize of output 214 [2022-11-03 04:06:08,670 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 198 treesize of output 194 [2022-11-03 04:06:08,694 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:06:08,710 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:06:08,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:08,730 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 115 [2022-11-03 04:06:08,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:08,754 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 39 [2022-11-03 04:06:08,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:06:08,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:08,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 04:06:08,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:08,803 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:06:08,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:06:08,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:08,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:08,949 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 253 treesize of output 230 [2022-11-03 04:06:08,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:08,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:08,999 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 238 treesize of output 221 [2022-11-03 04:06:09,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:09,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:09,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:09,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:09,056 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-03 04:06:09,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 358 [2022-11-03 04:06:09,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:09,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:09,093 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 242 treesize of output 225 [2022-11-03 04:06:09,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:09,111 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:09,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:09,134 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 04:06:09,134 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 349 treesize of output 356 [2022-11-03 04:06:09,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:09,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 11 [2022-11-03 04:06:09,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 108 treesize of output 60 [2022-11-03 04:06:09,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:09,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 [2022-11-03 04:06:09,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:06:09,574 INFO L356 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-03 04:06:09,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 89 treesize of output 50 [2022-11-03 04:06:09,583 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:06:09,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:09,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 38 treesize of output 24 [2022-11-03 04:06:09,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:09,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:09,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:09,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:10,021 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-03 04:06:10,022 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 29 [2022-11-03 04:06:10,051 INFO L356 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-03 04:06:10,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 19 [2022-11-03 04:06:10,090 INFO L356 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-11-03 04:06:10,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 19 [2022-11-03 04:06:10,223 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 49 for LOIs [2022-11-03 04:06:10,332 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:06:19,555 WARN L234 SmtUtils]: Spent 7.75s on a formula simplification. DAG size of input: 92 DAG size of output: 83 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:06:21,765 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1307#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (and (= |ULTIMATE.start_dll_append_~last~0#1.offset| (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 4)) (= |ULTIMATE.start_dll_append_~last~0#1.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8)) |ULTIMATE.start_dll_append_~last~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8))) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0) (= |#NULL.base| 0))' at error location [2022-11-03 04:06:21,766 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:06:21,766 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:21,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 22] total 39 [2022-11-03 04:06:21,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945087613] [2022-11-03 04:06:21,766 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:06:21,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-03 04:06:21,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:21,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-03 04:06:21,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=3091, Unknown=8, NotChecked=0, Total=3306 [2022-11-03 04:06:21,769 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand has 39 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 5 states have call successors, (5), 3 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-03 04:06:24,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:24,582 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2022-11-03 04:06:24,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 04:06:24,583 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 5 states have call successors, (5), 3 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 29 [2022-11-03 04:06:24,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:24,584 INFO L225 Difference]: With dead ends: 46 [2022-11-03 04:06:24,584 INFO L226 Difference]: Without dead ends: 32 [2022-11-03 04:06:24,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1492 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=398, Invalid=4996, Unknown=8, NotChecked=0, Total=5402 [2022-11-03 04:06:24,588 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 47 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:24,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 319 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 470 Invalid, 0 Unknown, 26 Unchecked, 0.7s Time] [2022-11-03 04:06:24,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-03 04:06:24,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2022-11-03 04:06:24,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:06:24,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-11-03 04:06:24,601 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 29 [2022-11-03 04:06:24,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:24,602 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-11-03 04:06:24,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 5 states have call successors, (5), 3 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-03 04:06:24,602 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-11-03 04:06:24,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-03 04:06:24,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:24,603 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:24,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:24,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:06:24,807 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:24,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:24,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1276272768, now seen corresponding path program 1 times [2022-11-03 04:06:24,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:24,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416044851] [2022-11-03 04:06:24,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:24,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:27,802 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:06:27,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:27,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416044851] [2022-11-03 04:06:27,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416044851] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:06:27,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709307565] [2022-11-03 04:06:27,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:27,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:06:27,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:06:27,805 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:06:27,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 04:06:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:29,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 155 conjunts are in the unsatisfiable core [2022-11-03 04:06:29,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:29,568 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-03 04:06:29,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:06:29,764 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:06:29,764 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-03 04:06:29,944 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:06:30,080 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-03 04:06:30,080 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-03 04:06:30,228 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:06:30,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 11 [2022-11-03 04:06:30,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-03 04:06:30,257 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 04:06:30,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 54 treesize of output 49 [2022-11-03 04:06:30,273 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-03 04:06:30,548 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:06:30,548 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 37 [2022-11-03 04:06:30,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 04:06:30,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:30,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:30,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 16 [2022-11-03 04:06:30,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:30,784 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:06:30,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 88 treesize of output 70 [2022-11-03 04:06:30,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:30,809 INFO L356 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-03 04:06:30,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 33 [2022-11-03 04:06:30,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 18 treesize of output 20 [2022-11-03 04:06:31,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:31,587 INFO L356 Elim1Store]: treesize reduction 103, result has 14.9 percent of original size [2022-11-03 04:06:31,588 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 191 treesize of output 95 [2022-11-03 04:06:31,633 INFO L356 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2022-11-03 04:06:31,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 224 treesize of output 141 [2022-11-03 04:06:31,649 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 47 [2022-11-03 04:06:31,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 48 [2022-11-03 04:06:31,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:31,669 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 45 treesize of output 50 [2022-11-03 04:06:31,851 INFO L356 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2022-11-03 04:06:31,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 151 treesize of output 55 [2022-11-03 04:06:31,871 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 24 treesize of output 10 [2022-11-03 04:06:31,944 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7 [2022-11-03 04:06:32,008 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:06:32,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:32,028 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1412 (Array Int Int)) (|ULTIMATE.start_dll_append_~last~0#1.offset| Int) (v_ArrVal_1410 (Array Int Int)) (v_ArrVal_1409 (Array Int Int)) (v_ArrVal_1408 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse0 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_1410) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1408) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1409) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1412) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) is different from false [2022-11-03 04:06:32,048 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_append_~last~0#1.offset_20| Int) (v_ArrVal_1412 (Array Int Int)) (v_ArrVal_1410 (Array Int Int)) (v_ArrVal_1409 (Array Int Int)) (v_ArrVal_1408 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (.cse1 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_20| 4))) (select (select (store (store |c_#memory_int| .cse0 v_ArrVal_1410) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1408) (select (select (store (store |c_#memory_$Pointer$.base| .cse0 (store (select |c_#memory_$Pointer$.base| .cse0) .cse1 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1409) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 (store (select |c_#memory_$Pointer$.offset| .cse0) .cse1 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1412) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) is different from false [2022-11-03 04:06:32,065 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_append_~last~0#1.offset_20| Int) (v_ArrVal_1412 (Array Int Int)) (v_ArrVal_1410 (Array Int Int)) (v_ArrVal_1409 (Array Int Int)) (v_ArrVal_1408 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse0 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (.cse1 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_20| 4))) (select (select (store (store |c_#memory_int| .cse0 v_ArrVal_1410) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1408) (select (select (store (store |c_#memory_$Pointer$.base| .cse0 (store (select |c_#memory_$Pointer$.base| .cse0) .cse1 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1409) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 (store (select |c_#memory_$Pointer$.offset| .cse0) .cse1 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1412) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) is different from false [2022-11-03 04:06:32,076 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_append_~last~0#1.offset_20| Int) (v_ArrVal_1412 (Array Int Int)) (v_ArrVal_1410 (Array Int Int)) (v_ArrVal_1409 (Array Int Int)) (v_ArrVal_1408 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse0 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (.cse1 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_20| 4))) (select (select (store (store |c_#memory_int| .cse0 v_ArrVal_1410) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_1408) (select (select (store (store |c_#memory_$Pointer$.base| .cse0 (store (select |c_#memory_$Pointer$.base| .cse0) .cse1 |c_ULTIMATE.start_dll_append_#t~ret7#1.base|)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_1409) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 (store (select |c_#memory_$Pointer$.offset| .cse0) .cse1 |c_ULTIMATE.start_dll_append_#t~ret7#1.offset|)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_1412) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) is different from false [2022-11-03 04:06:32,197 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1428 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_20| Int) (v_ArrVal_1412 (Array Int Int)) (v_ArrVal_1410 (Array Int Int)) (v_ArrVal_1430 (Array Int Int)) (|v_ULTIMATE.start_dll_append_#t~ret7#1.base_32| Int) (v_ArrVal_1409 (Array Int Int)) (v_ArrVal_1408 (Array Int Int)) (v_ArrVal_1429 (Array Int Int))) (or (not (< |v_ULTIMATE.start_dll_append_#t~ret7#1.base_32| |c_#StackHeapBarrier|)) (not (= (select |c_#valid| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_32|) 0)) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse1 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_32| v_ArrVal_1430)) (.cse3 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_32| v_ArrVal_1428))) (let ((.cse0 (select (select .cse1 (select (select .cse1 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select .cse3 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (.cse2 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_20| 4))) (select (select (store (store (store |c_#memory_int| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_32| v_ArrVal_1429) .cse0 v_ArrVal_1410) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_32| v_ArrVal_1408) (select (select (store (store .cse1 .cse0 (store (select .cse1 .cse0) .cse2 |v_ULTIMATE.start_dll_append_#t~ret7#1.base_32|)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_32| v_ArrVal_1409) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store .cse3 .cse0 (store (select .cse3 .cse0) .cse2 0)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_32| v_ArrVal_1412) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) is different from false [2022-11-03 04:06:32,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709307565] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:06:32,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1552106438] [2022-11-03 04:06:32,202 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-03 04:06:32,203 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:06:32,203 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:06:32,203 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:06:32,203 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:06:32,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,247 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 04:06:32,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 17 treesize of output 26 [2022-11-03 04:06:32,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,275 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:06:32,276 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 04:06:32,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:06:32,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:06:32,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,322 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2022-11-03 04:06:32,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2022-11-03 04:06:32,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,351 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2022-11-03 04:06:32,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,375 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 04:06:32,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 04:06:32,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 04:06:32,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 04:06:32,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,481 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:32,481 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 31 treesize of output 30 [2022-11-03 04:06:32,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:32,501 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 31 treesize of output 30 [2022-11-03 04:06:32,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 11 [2022-11-03 04:06:32,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:06:32,565 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:32,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,578 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 04:06:32,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,591 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 04:06:32,602 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:06:32,649 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:32,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:06:32,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,674 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 04:06:32,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 04:06:32,698 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:06:32,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:32,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,834 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 253 treesize of output 230 [2022-11-03 04:06:32,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,883 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 238 treesize of output 221 [2022-11-03 04:06:32,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:32,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:32,954 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 04:06:32,955 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 357 [2022-11-03 04:06:32,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:32,990 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 242 treesize of output 225 [2022-11-03 04:06:33,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:33,013 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:33,014 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:33,015 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:33,037 INFO L356 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-03 04:06:33,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 361 treesize of output 365 [2022-11-03 04:06:33,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:33,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 11 [2022-11-03 04:06:33,164 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 04:06:33,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-03 04:06:33,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:33,180 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2022-11-03 04:06:33,246 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-03 04:06:33,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 337 treesize of output 308 [2022-11-03 04:06:33,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:33,261 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 290 treesize of output 252 [2022-11-03 04:06:33,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:33,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:33,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 215 [2022-11-03 04:06:33,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:33,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 305 treesize of output 197 [2022-11-03 04:06:33,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:33,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 35 treesize of output 21 [2022-11-03 04:06:33,680 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:06:33,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:33,699 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 39 [2022-11-03 04:06:33,711 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:06:33,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:06:33,731 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:06:33,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:33,824 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:33,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:06:33,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:33,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:33,853 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 215 [2022-11-03 04:06:33,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:33,867 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 305 treesize of output 197 [2022-11-03 04:06:33,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:33,886 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 35 treesize of output 21 [2022-11-03 04:06:33,898 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:06:33,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:33,916 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 39 [2022-11-03 04:06:33,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:06:33,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:06:34,026 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:34,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:34,061 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 253 treesize of output 230 [2022-11-03 04:06:34,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:34,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:34,101 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 238 treesize of output 221 [2022-11-03 04:06:34,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:34,118 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:34,120 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:34,169 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 04:06:34,169 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 362 [2022-11-03 04:06:34,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:34,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:34,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 242 treesize of output 225 [2022-11-03 04:06:34,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:34,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:34,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:34,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:06:34,258 INFO L356 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-03 04:06:34,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 361 treesize of output 365 [2022-11-03 04:06:34,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:34,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 11 [2022-11-03 04:06:34,376 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 04:06:34,377 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 264 treesize of output 231 [2022-11-03 04:06:34,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:34,390 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 231 treesize of output 221 [2022-11-03 04:06:34,548 INFO L356 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-03 04:06:34,548 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 222 treesize of output 171 [2022-11-03 04:06:34,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:34,561 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 164 treesize of output 126 [2022-11-03 04:06:34,573 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:06:34,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:34,808 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:34,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:34,917 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:06:35,150 INFO L356 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-03 04:06:35,150 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 19 [2022-11-03 04:06:35,180 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-03 04:06:35,180 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 29 [2022-11-03 04:06:35,224 INFO L356 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-11-03 04:06:35,225 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 19 [2022-11-03 04:06:35,378 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 49 for LOIs [2022-11-03 04:06:35,484 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:06:45,770 WARN L234 SmtUtils]: Spent 8.86s on a formula simplification. DAG size of input: 92 DAG size of output: 83 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:06:49,788 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1634#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (and (= |ULTIMATE.start_dll_append_~last~0#1.offset| (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 4)) (= |ULTIMATE.start_dll_append_~last~0#1.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (not (= |ULTIMATE.start_main_~data~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0))) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8)) |ULTIMATE.start_dll_append_~last~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8))) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0))' at error location [2022-11-03 04:06:49,788 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:06:49,788 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:49,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22] total 43 [2022-11-03 04:06:49,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394617677] [2022-11-03 04:06:49,789 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:06:49,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-03 04:06:49,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:49,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-03 04:06:49,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=3225, Unknown=6, NotChecked=590, Total=4032 [2022-11-03 04:06:49,792 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 43 states, 35 states have (on average 1.4) internal successors, (49), 34 states have internal predecessors, (49), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:06:52,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:52,191 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2022-11-03 04:06:52,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-03 04:06:52,192 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 35 states have (on average 1.4) internal successors, (49), 34 states have internal predecessors, (49), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 31 [2022-11-03 04:06:52,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:52,193 INFO L225 Difference]: With dead ends: 45 [2022-11-03 04:06:52,193 INFO L226 Difference]: Without dead ends: 43 [2022-11-03 04:06:52,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 1151 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=318, Invalid=4666, Unknown=6, NotChecked=710, Total=5700 [2022-11-03 04:06:52,196 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 27 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:52,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 291 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 561 Invalid, 0 Unknown, 12 Unchecked, 0.9s Time] [2022-11-03 04:06:52,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-03 04:06:52,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2022-11-03 04:06:52,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:06:52,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2022-11-03 04:06:52,212 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 31 [2022-11-03 04:06:52,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:52,213 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-11-03 04:06:52,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 35 states have (on average 1.4) internal successors, (49), 34 states have internal predecessors, (49), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:06:52,213 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2022-11-03 04:06:52,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 04:06:52,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:52,215 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:52,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:52,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-03 04:06:52,416 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:52,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:52,416 INFO L85 PathProgramCache]: Analyzing trace with hash 909695652, now seen corresponding path program 1 times [2022-11-03 04:06:52,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:52,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394124178] [2022-11-03 04:06:52,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:52,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:52,581 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 04:06:52,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:52,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394124178] [2022-11-03 04:06:52,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394124178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:52,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:06:52,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:06:52,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137947988] [2022-11-03 04:06:52,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:52,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:52,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:06:52,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:52,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:06:52,583 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 04:06:52,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:52,695 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2022-11-03 04:06:52,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:06:52,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-11-03 04:06:52,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:52,698 INFO L225 Difference]: With dead ends: 47 [2022-11-03 04:06:52,698 INFO L226 Difference]: Without dead ends: 42 [2022-11-03 04:06:52,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:06:52,700 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 3 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:52,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 65 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:06:52,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-03 04:06:52,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2022-11-03 04:06:52,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 34 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:06:52,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2022-11-03 04:06:52,730 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 32 [2022-11-03 04:06:52,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:52,730 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2022-11-03 04:06:52,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 04:06:52,731 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2022-11-03 04:06:52,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-03 04:06:52,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:52,735 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:06:52,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 04:06:52,735 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:52,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:52,738 INFO L85 PathProgramCache]: Analyzing trace with hash -312027429, now seen corresponding path program 2 times [2022-11-03 04:06:52,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:06:52,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217399339] [2022-11-03 04:06:52,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:52,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:06:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:58,117 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:06:58,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:06:58,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217399339] [2022-11-03 04:06:58,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217399339] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:06:58,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607665350] [2022-11-03 04:06:58,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 04:06:58,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:06:58,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:06:58,119 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:06:58,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 04:06:58,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 04:06:58,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:06:58,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 177 conjunts are in the unsatisfiable core [2022-11-03 04:06:58,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:59,016 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:06:59,203 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2022-11-03 04:06:59,531 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 04:06:59,532 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-03 04:06:59,559 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:06:59,559 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 [2022-11-03 04:06:59,720 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:06:59,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:06:59,732 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 25 treesize of output 22 [2022-11-03 04:06:59,737 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-03 04:06:59,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 14 [2022-11-03 04:06:59,767 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 04:06:59,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 58 treesize of output 53 [2022-11-03 04:06:59,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 26 [2022-11-03 04:06:59,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 18 treesize of output 20 [2022-11-03 04:07:00,120 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:07:00,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 50 [2022-11-03 04:07:00,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 11 treesize of output 7 [2022-11-03 04:07:00,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:00,141 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:07:00,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 04:07:00,147 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:07:00,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:00,366 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:07:00,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 111 treesize of output 89 [2022-11-03 04:07:00,401 INFO L356 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-03 04:07:00,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 04:07:00,416 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 18 treesize of output 20 [2022-11-03 04:07:00,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:00,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:00,441 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-03 04:07:00,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 48 [2022-11-03 04:07:01,966 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:07:01,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:02,024 INFO L356 Elim1Store]: treesize reduction 131, result has 19.6 percent of original size [2022-11-03 04:07:02,024 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 296 treesize of output 182 [2022-11-03 04:07:02,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:02,050 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:07:02,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 217 treesize of output 177 [2022-11-03 04:07:02,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:02,114 INFO L356 Elim1Store]: treesize reduction 180, result has 9.1 percent of original size [2022-11-03 04:07:02,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 9 case distinctions, treesize of input 134 treesize of output 106 [2022-11-03 04:07:02,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:02,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:02,153 INFO L356 Elim1Store]: treesize reduction 51, result has 15.0 percent of original size [2022-11-03 04:07:02,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 119 treesize of output 96 [2022-11-03 04:07:02,163 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 52 [2022-11-03 04:07:02,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-03 04:07:02,187 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 3 [2022-11-03 04:07:02,339 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:07:02,340 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 51 [2022-11-03 04:07:02,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:02,353 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-03 04:07:02,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 18 [2022-11-03 04:07:02,472 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7 [2022-11-03 04:07:02,557 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:02,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:02,585 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1813 (Array Int Int)) (v_ArrVal_1821 Int) (v_ArrVal_1824 Int) (v_ArrVal_1815 (Array Int Int)) (v_ArrVal_1814 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse0 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 v_ArrVal_1824)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1814) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 v_ArrVal_1821)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1813) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1815) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) is different from false [2022-11-03 04:07:03,059 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1813 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.base_27| Int) (v_ArrVal_1821 Int) (v_ArrVal_1824 Int) (v_ArrVal_1815 (Array Int Int)) (v_ArrVal_1814 (Array Int Int))) (let ((.cse1 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_~last~0#1.base_27|)) (.cse0 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4)) 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |v_ULTIMATE.start_dll_append_~last~0#1.base_27| (store (select |c_#memory_int| |v_ULTIMATE.start_dll_append_~last~0#1.base_27|) .cse0 v_ArrVal_1824)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1814) (select (select (store (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_~last~0#1.base_27| (store .cse1 .cse0 v_ArrVal_1821)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1813) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_~last~0#1.base_27| (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_~last~0#1.base_27|) .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1815) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (not (= (select .cse1 .cse0) 0))))) is different from false [2022-11-03 04:07:03,088 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1813 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.base_27| Int) (v_ArrVal_1821 Int) (v_ArrVal_1824 Int) (v_ArrVal_1815 (Array Int Int)) (v_ArrVal_1814 (Array Int Int))) (let ((.cse0 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_~last~0#1.base_27|)) (.cse1 (+ (let ((.cse2 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (select (select |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse2)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse2) 4))) 4))) (or (not (= (select .cse0 .cse1) 0)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |v_ULTIMATE.start_dll_append_~last~0#1.base_27| (store (select |c_#memory_int| |v_ULTIMATE.start_dll_append_~last~0#1.base_27|) .cse1 v_ArrVal_1824)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1814) (select (select (store (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_~last~0#1.base_27| (store .cse0 .cse1 v_ArrVal_1821)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1813) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_~last~0#1.base_27| (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_~last~0#1.base_27|) .cse1 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1815) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))))) is different from false [2022-11-03 04:07:03,121 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1813 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.base_27| Int) (v_ArrVal_1821 Int) (v_ArrVal_1824 Int) (v_ArrVal_1815 (Array Int Int)) (v_ArrVal_1814 (Array Int Int))) (let ((.cse0 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_~last~0#1.base_27|)) (.cse1 (+ (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse3 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (select (select |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| .cse2) .cse3)) (+ (select (select |c_#memory_$Pointer$.offset| .cse2) .cse3) 4))) 4))) (or (not (= (select .cse0 .cse1) 0)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |v_ULTIMATE.start_dll_append_~last~0#1.base_27| (store (select |c_#memory_int| |v_ULTIMATE.start_dll_append_~last~0#1.base_27|) .cse1 v_ArrVal_1824)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1814) (select (select (store (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_~last~0#1.base_27| (store .cse0 .cse1 v_ArrVal_1821)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1813) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_~last~0#1.base_27| (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_~last~0#1.base_27|) .cse1 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1815) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))))) is different from false [2022-11-03 04:07:03,165 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1813 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.base_27| Int) (v_ArrVal_1821 Int) (v_ArrVal_1824 Int) (v_ArrVal_1815 (Array Int Int)) (v_ArrVal_1814 (Array Int Int))) (let ((.cse1 (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_~last~0#1.base_27|)) (.cse0 (+ (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse3 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (select (select |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| .cse2) .cse3)) (+ (select (select |c_#memory_$Pointer$.offset| .cse2) .cse3) 4))) 4))) (or (= (select (select (store (store |c_#memory_int| |v_ULTIMATE.start_dll_append_~last~0#1.base_27| (store (select |c_#memory_int| |v_ULTIMATE.start_dll_append_~last~0#1.base_27|) .cse0 v_ArrVal_1824)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_1814) (select (select (store (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_~last~0#1.base_27| (store .cse1 .cse0 v_ArrVal_1821)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_1813) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_~last~0#1.base_27| (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_~last~0#1.base_27|) .cse0 |c_ULTIMATE.start_dll_append_#t~ret7#1.offset|)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_1815) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) |c_ULTIMATE.start_main_~data~0#1|) (not (= (select .cse1 .cse0) 0))))) is different from false [2022-11-03 04:07:03,301 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1835 (Array Int Int)) (v_ArrVal_1813 (Array Int Int)) (v_ArrVal_1834 (Array Int Int)) (|v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| Int) (|v_ULTIMATE.start_dll_append_~last~0#1.base_27| Int) (v_ArrVal_1821 Int) (v_ArrVal_1824 Int) (v_ArrVal_1815 (Array Int Int)) (v_ArrVal_1836 (Array Int Int)) (v_ArrVal_1814 (Array Int Int))) (let ((.cse4 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1836)) (.cse3 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1834))) (let ((.cse0 (select .cse3 |v_ULTIMATE.start_dll_append_~last~0#1.base_27|)) (.cse1 (+ (let ((.cse5 (select (select .cse3 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse6 (+ (select (select .cse4 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (select (select .cse4 (select (select .cse3 .cse5) .cse6)) (+ 4 (select (select .cse4 .cse5) .cse6)))) 4))) (or (not (< |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| |c_#StackHeapBarrier|)) (not (= (select .cse0 .cse1) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36|) 0)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (let ((.cse2 (store |c_#memory_int| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1835))) (store .cse2 |v_ULTIMATE.start_dll_append_~last~0#1.base_27| (store (select .cse2 |v_ULTIMATE.start_dll_append_~last~0#1.base_27|) .cse1 v_ArrVal_1824))) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1814) (select (select (store (store .cse3 |v_ULTIMATE.start_dll_append_~last~0#1.base_27| (store .cse0 .cse1 v_ArrVal_1821)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1813) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store .cse4 |v_ULTIMATE.start_dll_append_~last~0#1.base_27| (store (select .cse4 |v_ULTIMATE.start_dll_append_~last~0#1.base_27|) .cse1 0)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1815) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) is different from false [2022-11-03 04:07:03,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607665350] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:03,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2126759349] [2022-11-03 04:07:03,307 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-03 04:07:03,307 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:07:03,307 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:07:03,308 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:07:03,308 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:07:03,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,350 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:07:03,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 04:07:03,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:07:03,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:07:03,399 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:07:03,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,411 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2022-11-03 04:07:03,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,420 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2022-11-03 04:07:03,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,456 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2022-11-03 04:07:03,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,485 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 04:07:03,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 04:07:03,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,545 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 04:07:03,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,560 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 04:07:03,650 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:07:03,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 219 [2022-11-03 04:07:03,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:07:03,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:07:03,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 210 [2022-11-03 04:07:03,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:07:03,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:07:03,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:03,823 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 115 [2022-11-03 04:07:03,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2022-11-03 04:07:03,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2022-11-03 04:07:03,916 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:07:03,926 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:07:03,936 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:07:03,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 04:07:03,956 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 04:07:03,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:07:04,007 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 04:07:04,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 04:07:04,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:07:04,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 04:07:04,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:04,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:04,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:04,116 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-03 04:07:04,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:04,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 7 [2022-11-03 04:07:04,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:04,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:07:04,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:04,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:04,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 155 [2022-11-03 04:07:04,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:04,263 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 11 [2022-11-03 04:07:04,371 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-03 04:07:04,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 197 treesize of output 174 [2022-11-03 04:07:04,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:04,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 156 treesize of output 126 [2022-11-03 04:07:04,429 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 04:07:04,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 190 treesize of output 149 [2022-11-03 04:07:04,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:04,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 149 treesize of output 119 [2022-11-03 04:07:04,680 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:07:04,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:04,694 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 148 treesize of output 110 [2022-11-03 04:07:04,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:04,708 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 204 treesize of output 112 [2022-11-03 04:07:04,726 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:07:04,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:04,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 12 [2022-11-03 04:07:04,759 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:07:04,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:04,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 12 [2022-11-03 04:07:04,784 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:07:04,786 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:07:04,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:04,989 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 148 treesize of output 110 [2022-11-03 04:07:05,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,004 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 204 treesize of output 112 [2022-11-03 04:07:05,025 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:07:05,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 12 [2022-11-03 04:07:05,064 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:07:05,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 12 [2022-11-03 04:07:05,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:07:05,104 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:07:05,105 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:07:05,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,180 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-03 04:07:05,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:07:05,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 160 [2022-11-03 04:07:05,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,241 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 7 [2022-11-03 04:07:05,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,276 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 11 [2022-11-03 04:07:05,324 INFO L356 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-03 04:07:05,324 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-03 04:07:05,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2022-11-03 04:07:05,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,360 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 32 [2022-11-03 04:07:05,395 INFO L356 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-03 04:07:05,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-03 04:07:05,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,408 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2022-11-03 04:07:05,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:05,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 32 [2022-11-03 04:07:05,672 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:07:05,684 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:07:05,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:07:05,759 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2022-11-03 04:07:06,033 INFO L356 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-03 04:07:06,034 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 19 [2022-11-03 04:07:06,067 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-03 04:07:06,068 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 29 [2022-11-03 04:07:06,112 INFO L356 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-11-03 04:07:06,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 19 [2022-11-03 04:07:06,267 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 49 for LOIs [2022-11-03 04:07:06,370 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:07:16,963 WARN L234 SmtUtils]: Spent 9.07s on a formula simplification. DAG size of input: 92 DAG size of output: 83 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:07:20,568 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2107#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (and (= |ULTIMATE.start_dll_append_~last~0#1.offset| (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 4)) (= |ULTIMATE.start_dll_append_~last~0#1.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (not (= |ULTIMATE.start_main_~data~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (= |ULTIMATE.start_main_~data~0#1| 1) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) 0))) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 5 |ULTIMATE.start_dll_append_#in~data#1|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8)) |ULTIMATE.start_dll_append_~last~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8))) (<= |ULTIMATE.start_dll_append_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= |ULTIMATE.start_dll_append_~data#1| 5) (<= 5 |ULTIMATE.start_dll_append_~data#1|) (= |#NULL.base| 0))' at error location [2022-11-03 04:07:20,568 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:07:20,568 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:07:20,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26] total 47 [2022-11-03 04:07:20,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275444137] [2022-11-03 04:07:20,569 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:07:20,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-03 04:07:20,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:07:20,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-03 04:07:20,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=3916, Unknown=10, NotChecked=786, Total=4970 [2022-11-03 04:07:20,572 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand has 47 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 38 states have internal predecessors, (51), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:07:25,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:25,074 INFO L93 Difference]: Finished difference Result 67 states and 80 transitions. [2022-11-03 04:07:25,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-03 04:07:25,075 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 38 states have internal predecessors, (51), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 33 [2022-11-03 04:07:25,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:25,076 INFO L225 Difference]: With dead ends: 67 [2022-11-03 04:07:25,076 INFO L226 Difference]: Without dead ends: 65 [2022-11-03 04:07:25,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 1892 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=524, Invalid=6630, Unknown=10, NotChecked=1026, Total=8190 [2022-11-03 04:07:25,080 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 142 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:25,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 290 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 648 Invalid, 0 Unknown, 50 Unchecked, 1.6s Time] [2022-11-03 04:07:25,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-03 04:07:25,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 41. [2022-11-03 04:07:25,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 36 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:07:25,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2022-11-03 04:07:25,103 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 33 [2022-11-03 04:07:25,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:25,104 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2022-11-03 04:07:25,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 38 states have internal predecessors, (51), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:07:25,105 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2022-11-03 04:07:25,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-03 04:07:25,106 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:25,106 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:25,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:25,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:07:25,311 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:25,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:25,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1902782484, now seen corresponding path program 1 times [2022-11-03 04:07:25,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:25,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561658075] [2022-11-03 04:07:25,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:25,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:07:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:29,332 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:29,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:07:29,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561658075] [2022-11-03 04:07:29,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561658075] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:29,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110710704] [2022-11-03 04:07:29,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:29,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:07:29,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:07:29,334 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:07:29,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b81ddc3-0359-4a7e-9b46-7ab9e7950196/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-03 04:07:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:29,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 176 conjunts are in the unsatisfiable core [2022-11-03 04:07:29,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:29,641 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-03 04:07:29,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:07:29,885 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:07:29,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-03 04:07:29,982 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2022-11-03 04:07:29,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7 [2022-11-03 04:07:29,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7 [2022-11-03 04:07:30,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:07:30,364 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 04:07:30,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-03 04:07:30,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:30,392 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:07:30,393 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 22 treesize of output 29 [2022-11-03 04:07:30,412 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 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 [2022-11-03 04:07:30,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 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 [2022-11-03 04:07:30,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:30,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 24 [2022-11-03 04:07:30,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 27 treesize of output 25 [2022-11-03 04:07:30,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:30,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 23 [2022-11-03 04:07:30,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:30,663 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 23 [2022-11-03 04:07:30,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 20 treesize of output 30 [2022-11-03 04:07:30,682 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 20 treesize of output 30 [2022-11-03 04:07:30,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 20 treesize of output 30 [2022-11-03 04:07:30,706 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 9 [2022-11-03 04:07:31,092 INFO L356 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2022-11-03 04:07:31,093 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 182 treesize of output 66 [2022-11-03 04:07:31,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:31,105 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 12 [2022-11-03 04:07:31,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:31,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 04:07:31,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:31,350 INFO L356 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2022-11-03 04:07:31,351 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 190 treesize of output 158 [2022-11-03 04:07:31,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:31,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:31,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:31,383 INFO L356 Elim1Store]: treesize reduction 35, result has 12.5 percent of original size [2022-11-03 04:07:31,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 161 [2022-11-03 04:07:31,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:31,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:31,435 INFO L356 Elim1Store]: treesize reduction 8, result has 77.1 percent of original size [2022-11-03 04:07:31,436 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 39 [2022-11-03 04:07:31,458 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 04:07:32,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:32,802 INFO L356 Elim1Store]: treesize reduction 156, result has 25.4 percent of original size [2022-11-03 04:07:32,802 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 8 new quantified variables, introduced 9 case distinctions, treesize of input 238 treesize of output 230 [2022-11-03 04:07:32,865 INFO L356 Elim1Store]: treesize reduction 45, result has 48.9 percent of original size [2022-11-03 04:07:32,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 36 treesize of output 60 [2022-11-03 04:07:32,949 INFO L356 Elim1Store]: treesize reduction 158, result has 18.6 percent of original size [2022-11-03 04:07:32,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 247 treesize of output 133 [2022-11-03 04:07:33,021 INFO L356 Elim1Store]: treesize reduction 100, result has 20.0 percent of original size [2022-11-03 04:07:33,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 295 treesize of output 245 [2022-11-03 04:07:33,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:33,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:07:33,077 INFO L356 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2022-11-03 04:07:33,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 7 case distinctions, treesize of input 254 treesize of output 254 [2022-11-03 04:07:33,100 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 54 [2022-11-03 04:07:33,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 5 [2022-11-03 04:07:33,142 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 43 treesize of output 35 [2022-11-03 04:07:35,694 INFO L356 Elim1Store]: treesize reduction 116, result has 81.7 percent of original size [2022-11-03 04:07:35,695 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 17 new quantified variables, introduced 55 case distinctions, treesize of input 670 treesize of output 748 [2022-11-03 04:07:36,690 INFO L356 Elim1Store]: treesize reduction 64, result has 82.1 percent of original size [2022-11-03 04:07:36,691 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 12 new quantified variables, introduced 36 case distinctions, treesize of input 640 treesize of output 765