./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/sum_array-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/sum_array-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7 --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 84226515a723f10f2a919f265c45890771224ac18b5dd5f986441c53175929f5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:43:55,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:43:55,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:43:55,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:43:55,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:43:55,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:43:55,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:43:55,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:43:55,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:43:55,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:43:55,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:43:55,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:43:55,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:43:55,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:43:55,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:43:55,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:43:55,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:43:55,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:43:55,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:43:55,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:43:55,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:43:55,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:43:55,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:43:55,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:43:55,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:43:55,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:43:55,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:43:55,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:43:55,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:43:55,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:43:55,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:43:55,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:43:55,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:43:55,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:43:55,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:43:55,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:43:55,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:43:55,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:43:55,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:43:55,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:43:55,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:43:55,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:43:55,349 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:43:55,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:43:55,350 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:43:55,350 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:43:55,361 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:43:55,361 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:43:55,361 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:43:55,362 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:43:55,362 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:43:55,362 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:43:55,363 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:43:55,364 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:43:55,364 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:43:55,364 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:43:55,364 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:43:55,365 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:43:55,365 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:43:55,365 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:43:55,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:43:55,366 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:43:55,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:43:55,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:43:55,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:43:55,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:43:55,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:43:55,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:43:55,370 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:43:55,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:43:55,370 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:43:55,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:43:55,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:43:55,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:43:55,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:43:55,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:43:55,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:43:55,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:43:55,372 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:43:55,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:43:55,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:43:55,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:43:55,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:43:55,374 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84226515a723f10f2a919f265c45890771224ac18b5dd5f986441c53175929f5 [2021-11-25 18:43:55,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:43:55,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:43:55,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:43:55,718 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:43:55,719 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:43:55,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/loops/sum_array-2.i [2021-11-25 18:43:55,809 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/data/1e722f936/582ea3c5f5f14e7cba83827f6b522ad6/FLAGdbdd7d114 [2021-11-25 18:43:56,334 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:43:56,335 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/sv-benchmarks/c/loops/sum_array-2.i [2021-11-25 18:43:56,344 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/data/1e722f936/582ea3c5f5f14e7cba83827f6b522ad6/FLAGdbdd7d114 [2021-11-25 18:43:56,713 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/data/1e722f936/582ea3c5f5f14e7cba83827f6b522ad6 [2021-11-25 18:43:56,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:43:56,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:43:56,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:43:56,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:43:56,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:43:56,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:43:56" (1/1) ... [2021-11-25 18:43:56,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19c3f728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:56, skipping insertion in model container [2021-11-25 18:43:56,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:43:56" (1/1) ... [2021-11-25 18:43:56,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:43:56,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:43:56,965 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_065db2b6-b8f8-4324-abb2-d2202ec33137/sv-benchmarks/c/loops/sum_array-2.i[938,951] [2021-11-25 18:43:56,988 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:43:56,997 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:43:57,013 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_065db2b6-b8f8-4324-abb2-d2202ec33137/sv-benchmarks/c/loops/sum_array-2.i[938,951] [2021-11-25 18:43:57,025 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:43:57,043 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:43:57,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:57 WrapperNode [2021-11-25 18:43:57,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:43:57,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:43:57,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:43:57,047 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:43:57,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:57" (1/1) ... [2021-11-25 18:43:57,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:57" (1/1) ... [2021-11-25 18:43:57,132 INFO L137 Inliner]: procedures = 18, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 101 [2021-11-25 18:43:57,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:43:57,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:43:57,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:43:57,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:43:57,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:57" (1/1) ... [2021-11-25 18:43:57,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:57" (1/1) ... [2021-11-25 18:43:57,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:57" (1/1) ... [2021-11-25 18:43:57,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:57" (1/1) ... [2021-11-25 18:43:57,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:57" (1/1) ... [2021-11-25 18:43:57,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:57" (1/1) ... [2021-11-25 18:43:57,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:57" (1/1) ... [2021-11-25 18:43:57,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:43:57,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:43:57,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:43:57,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:43:57,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:57" (1/1) ... [2021-11-25 18:43:57,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:43:57,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:43:57,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:43:57,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:43:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:43:57,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:43:57,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:43:57,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:43:57,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:43:57,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:43:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:43:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:43:57,407 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:43:57,410 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:43:57,601 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:43:57,640 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:43:57,640 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-25 18:43:57,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:43:57 BoogieIcfgContainer [2021-11-25 18:43:57,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:43:57,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:43:57,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:43:57,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:43:57,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:43:56" (1/3) ... [2021-11-25 18:43:57,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55de2e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:43:57, skipping insertion in model container [2021-11-25 18:43:57,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:43:57" (2/3) ... [2021-11-25 18:43:57,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55de2e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:43:57, skipping insertion in model container [2021-11-25 18:43:57,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:43:57" (3/3) ... [2021-11-25 18:43:57,651 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_array-2.i [2021-11-25 18:43:57,657 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:43:57,657 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:43:57,708 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:43:57,716 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:43:57,716 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:43:57,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:43:57,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 18:43:57,736 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:43:57,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:43:57,737 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:43:57,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:43:57,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1641154758, now seen corresponding path program 1 times [2021-11-25 18:43:57,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:43:57,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613697521] [2021-11-25 18:43:57,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:43:57,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:43:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:43:58,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:43:58,179 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:43:58,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613697521] [2021-11-25 18:43:58,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613697521] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:43:58,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:43:58,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:43:58,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909451501] [2021-11-25 18:43:58,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:43:58,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:43:58,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:43:58,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:43:58,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:43:58,267 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:43:58,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:43:58,398 INFO L93 Difference]: Finished difference Result 40 states and 58 transitions. [2021-11-25 18:43:58,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:43:58,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 18:43:58,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:43:58,411 INFO L225 Difference]: With dead ends: 40 [2021-11-25 18:43:58,412 INFO L226 Difference]: Without dead ends: 21 [2021-11-25 18:43:58,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:43:58,420 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:43:58,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 20 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:43:58,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-25 18:43:58,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 14. [2021-11-25 18:43:58,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:43:58,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2021-11-25 18:43:58,463 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 7 [2021-11-25 18:43:58,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:43:58,463 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-11-25 18:43:58,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:43:58,464 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2021-11-25 18:43:58,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:43:58,465 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:43:58,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:43:58,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:43:58,466 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:43:58,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:43:58,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1507227221, now seen corresponding path program 1 times [2021-11-25 18:43:58,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:43:58,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282879896] [2021-11-25 18:43:58,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:43:58,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:43:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:43:59,656 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:43:59,656 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:43:59,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282879896] [2021-11-25 18:43:59,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282879896] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:43:59,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089345156] [2021-11-25 18:43:59,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:43:59,659 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:43:59,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:43:59,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:43:59,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:43:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:43:59,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-25 18:43:59,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:43:59,880 INFO L388 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 14 treesize of output 12 [2021-11-25 18:44:00,011 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-25 18:44:00,012 INFO L388 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 1 case distinctions, treesize of input 21 treesize of output 24 [2021-11-25 18:44:00,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:44:00,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:44:00,495 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:44:00,496 INFO L388 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 193 treesize of output 197 [2021-11-25 18:44:05,365 INFO L354 Elim1Store]: treesize reduction 7, result has 50.0 percent of original size [2021-11-25 18:44:05,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 83 [2021-11-25 18:44:05,385 INFO L354 Elim1Store]: treesize reduction 10, result has 28.6 percent of original size [2021-11-25 18:44:05,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 52 [2021-11-25 18:44:05,413 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 18:44:05,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 1 [2021-11-25 18:44:05,431 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 18:44:05,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 196 treesize of output 1 [2021-11-25 18:44:05,456 INFO L354 Elim1Store]: treesize reduction 10, result has 28.6 percent of original size [2021-11-25 18:44:05,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 223 treesize of output 169 [2021-11-25 18:44:05,506 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 18:44:05,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 261 treesize of output 1 [2021-11-25 18:44:05,522 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 18:44:05,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 196 treesize of output 1 [2021-11-25 18:44:05,546 INFO L354 Elim1Store]: treesize reduction 10, result has 28.6 percent of original size [2021-11-25 18:44:05,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 120 [2021-11-25 18:44:05,588 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 18:44:05,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 1 [2021-11-25 18:44:05,603 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 18:44:05,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 169 treesize of output 1 [2021-11-25 18:44:06,536 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-11-25 18:44:06,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 184 treesize of output 135 [2021-11-25 18:44:06,555 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-11-25 18:44:06,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 84 [2021-11-25 18:44:06,582 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-11-25 18:44:06,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 82 [2021-11-25 18:44:08,445 INFO L354 Elim1Store]: treesize reduction 33, result has 74.4 percent of original size [2021-11-25 18:44:08,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 628 treesize of output 433 [2021-11-25 18:44:09,771 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:44:09,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 569 treesize of output 433 [2021-11-25 18:44:16,216 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-25 18:44:16,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 628 treesize of output 1 [2021-11-25 18:44:16,233 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-25 18:44:16,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 799 treesize of output 1 [2021-11-25 18:44:16,305 INFO L354 Elim1Store]: treesize reduction 102, result has 20.9 percent of original size [2021-11-25 18:44:16,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 569 treesize of output 331 [2021-11-25 18:44:16,390 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-25 18:44:16,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 231 treesize of output 1 [2021-11-25 18:44:16,414 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-25 18:44:16,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 402 treesize of output 1 [2021-11-25 18:44:16,439 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-25 18:44:16,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 799 treesize of output 1 [2021-11-25 18:44:16,453 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-25 18:44:16,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 231 treesize of output 1 [2021-11-25 18:44:16,468 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-25 18:44:16,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 402 treesize of output 1 [2021-11-25 18:44:16,481 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-25 18:44:16,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 1 [2021-11-25 18:44:16,493 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-25 18:44:16,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 231 treesize of output 1 [2021-11-25 18:44:16,620 INFO L354 Elim1Store]: treesize reduction 40, result has 70.8 percent of original size [2021-11-25 18:44:16,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 64 treesize of output 132 [2021-11-25 18:44:18,098 INFO L354 Elim1Store]: treesize reduction 40, result has 70.8 percent of original size [2021-11-25 18:44:18,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 802 treesize of output 518 [2021-11-25 18:44:23,109 INFO L354 Elim1Store]: treesize reduction 40, result has 70.8 percent of original size [2021-11-25 18:44:23,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 680 treesize of output 456 [2021-11-25 18:44:29,870 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 18:44:29,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 196 treesize of output 1 [2021-11-25 18:44:29,879 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-25 18:44:29,897 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 18:44:29,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 261 treesize of output 1 [2021-11-25 18:44:29,909 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 18:44:29,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 1 [2021-11-25 18:44:29,914 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-25 18:44:29,925 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 18:44:29,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 169 treesize of output 1 [2021-11-25 18:44:29,954 INFO L354 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-11-25 18:44:29,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 196 treesize of output 1 [2021-11-25 18:44:29,963 INFO L354 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-11-25 18:44:29,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 261 treesize of output 1 [2021-11-25 18:44:29,980 INFO L354 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-11-25 18:44:29,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 169 treesize of output 1 [2021-11-25 18:44:29,988 INFO L354 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-11-25 18:44:29,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 1 [2021-11-25 18:44:30,000 INFO L354 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-11-25 18:44:30,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 1 [2021-11-25 18:44:30,018 INFO L354 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-11-25 18:44:30,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 1 [2021-11-25 18:44:30,049 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-25 18:44:30,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 628 treesize of output 1 [2021-11-25 18:44:30,063 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-25 18:44:30,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 799 treesize of output 1 [2021-11-25 18:44:30,074 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-25 18:44:30,087 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-25 18:44:30,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 231 treesize of output 1 [2021-11-25 18:44:30,093 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-25 18:44:30,105 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-25 18:44:30,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 402 treesize of output 1 [2021-11-25 18:44:30,118 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-25 18:44:30,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 1 [2021-11-25 18:44:30,129 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-25 18:44:30,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 231 treesize of output 1 [2021-11-25 18:44:30,203 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:44:30,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089345156] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:44:30,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1900934409] [2021-11-25 18:44:30,233 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-25 18:44:30,244 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:44:30,256 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:44:30,265 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:44:30,267 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:44:30,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:30,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:30,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:30,418 INFO L354 Elim1Store]: treesize reduction 173, result has 24.5 percent of original size [2021-11-25 18:44:30,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 87 [2021-11-25 18:44:30,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:30,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:30,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:30,535 INFO L354 Elim1Store]: treesize reduction 129, result has 17.8 percent of original size [2021-11-25 18:44:30,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 55 treesize of output 73 [2021-11-25 18:44:30,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:30,599 INFO L388 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 43 treesize of output 45 [2021-11-25 18:44:30,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:30,745 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:44:30,791 INFO L354 Elim1Store]: treesize reduction 97, result has 26.0 percent of original size [2021-11-25 18:44:30,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 413 treesize of output 425 [2021-11-25 18:44:30,989 INFO L388 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 28 treesize of output 24 [2021-11-25 18:44:31,036 INFO L388 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 28 treesize of output 24 [2021-11-25 18:44:31,097 INFO L354 Elim1Store]: treesize reduction 32, result has 44.8 percent of original size [2021-11-25 18:44:31,098 INFO L388 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 89 treesize of output 103 [2021-11-25 18:44:31,182 INFO L388 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 28 treesize of output 24 [2021-11-25 18:44:31,251 INFO L354 Elim1Store]: treesize reduction 28, result has 52.5 percent of original size [2021-11-25 18:44:31,254 INFO L388 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 21 treesize of output 40 [2021-11-25 18:44:31,316 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:44:31,317 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:44:31,368 INFO L354 Elim1Store]: treesize reduction 74, result has 51.0 percent of original size [2021-11-25 18:44:31,368 INFO L388 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 90 treesize of output 109 [2021-11-25 18:44:31,508 INFO L388 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 28 treesize of output 24 [2021-11-25 18:44:31,528 INFO L388 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 28 treesize of output 24 [2021-11-25 18:44:31,532 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:44:32,147 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '185#(and (= |ULTIMATE.start_main_~i~0#1| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 4))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (< (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (mod |ULTIMATE.start_main_~M~0#1| 4294967296)) (= (ite (= (+ |ULTIMATE.start_main_#t~mem13#1| |ULTIMATE.start_main_#t~mem12#1|) |ULTIMATE.start_main_#t~mem14#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#A~0#1.base|) (+ |ULTIMATE.start_main_~#A~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 4))) |ULTIMATE.start_main_#t~mem12#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_#t~mem14#1| (select (select |#memory_int| |ULTIMATE.start_main_~#C~0#1.base|) (+ |ULTIMATE.start_main_~#C~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 4)))) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-25 18:44:32,147 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:44:32,147 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:44:32,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2021-11-25 18:44:32,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014614435] [2021-11-25 18:44:32,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:44:32,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-25 18:44:32,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:44:32,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-25 18:44:32,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2021-11-25 18:44:32,151 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 15 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:44:32,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:44:32,484 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2021-11-25 18:44:32,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:44:32,485 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 18:44:32,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:44:32,485 INFO L225 Difference]: With dead ends: 22 [2021-11-25 18:44:32,485 INFO L226 Difference]: Without dead ends: 20 [2021-11-25 18:44:32,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=128, Invalid=522, Unknown=0, NotChecked=0, Total=650 [2021-11-25 18:44:32,487 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 45 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:44:32,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 18 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:44:32,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-25 18:44:32,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 16. [2021-11-25 18:44:32,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:44:32,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-11-25 18:44:32,493 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 12 [2021-11-25 18:44:32,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:44:32,493 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-11-25 18:44:32,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:44:32,494 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2021-11-25 18:44:32,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 18:44:32,494 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:44:32,495 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:44:32,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:44:32,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:44:32,696 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:44:32,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:44:32,696 INFO L85 PathProgramCache]: Analyzing trace with hash -2071753153, now seen corresponding path program 1 times [2021-11-25 18:44:32,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:44:32,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141128972] [2021-11-25 18:44:32,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:44:32,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:44:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:44:32,930 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:44:32,930 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:44:32,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141128972] [2021-11-25 18:44:32,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141128972] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:44:32,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903805373] [2021-11-25 18:44:32,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:44:32,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:44:32,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:44:32,932 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:44:32,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:44:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:44:33,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 18:44:33,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:44:33,104 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:44:33,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:44:33,237 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:44:33,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903805373] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:44:33,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [971055251] [2021-11-25 18:44:33,240 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2021-11-25 18:44:33,240 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:44:33,241 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:44:33,241 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:44:33,241 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:44:33,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:33,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:33,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:33,357 INFO L354 Elim1Store]: treesize reduction 173, result has 24.5 percent of original size [2021-11-25 18:44:33,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 87 [2021-11-25 18:44:33,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:33,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:33,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:33,480 INFO L354 Elim1Store]: treesize reduction 129, result has 17.8 percent of original size [2021-11-25 18:44:33,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 55 treesize of output 73 [2021-11-25 18:44:33,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:33,524 INFO L388 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 43 treesize of output 45 [2021-11-25 18:44:33,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:33,639 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:44:33,686 INFO L354 Elim1Store]: treesize reduction 97, result has 26.0 percent of original size [2021-11-25 18:44:33,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 413 treesize of output 425 [2021-11-25 18:44:33,986 INFO L388 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 28 treesize of output 24 [2021-11-25 18:44:34,023 INFO L388 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 28 treesize of output 24 [2021-11-25 18:44:34,080 INFO L354 Elim1Store]: treesize reduction 32, result has 44.8 percent of original size [2021-11-25 18:44:34,083 INFO L388 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 89 treesize of output 103 [2021-11-25 18:44:34,155 INFO L388 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 28 treesize of output 24 [2021-11-25 18:44:34,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:44:34,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:44:34,225 INFO L354 Elim1Store]: treesize reduction 74, result has 51.0 percent of original size [2021-11-25 18:44:34,226 INFO L388 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 90 treesize of output 109 [2021-11-25 18:44:34,269 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:44:34,270 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:44:34,312 INFO L354 Elim1Store]: treesize reduction 74, result has 51.0 percent of original size [2021-11-25 18:44:34,312 INFO L388 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 90 treesize of output 109 [2021-11-25 18:44:34,513 INFO L388 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 28 treesize of output 24 [2021-11-25 18:44:34,531 INFO L388 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 28 treesize of output 24 [2021-11-25 18:44:34,534 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:44:35,088 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '359#(and (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-25 18:44:35,088 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:44:35,088 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:44:35,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 15 [2021-11-25 18:44:35,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448348373] [2021-11-25 18:44:35,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:44:35,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-25 18:44:35,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:44:35,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-25 18:44:35,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2021-11-25 18:44:35,091 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 16 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:44:35,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:44:35,341 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2021-11-25 18:44:35,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:44:35,341 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-25 18:44:35,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:44:35,342 INFO L225 Difference]: With dead ends: 49 [2021-11-25 18:44:35,342 INFO L226 Difference]: Without dead ends: 29 [2021-11-25 18:44:35,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2021-11-25 18:44:35,344 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 23 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:44:35,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 34 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 18:44:35,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-25 18:44:35,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2021-11-25 18:44:35,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:44:35,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-11-25 18:44:35,351 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 15 [2021-11-25 18:44:35,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:44:35,352 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-11-25 18:44:35,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:44:35,352 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-11-25 18:44:35,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 18:44:35,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:44:35,353 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:44:35,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-25 18:44:35,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:44:35,557 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:44:35,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:44:35,557 INFO L85 PathProgramCache]: Analyzing trace with hash -553679844, now seen corresponding path program 2 times [2021-11-25 18:44:35,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:44:35,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873620133] [2021-11-25 18:44:35,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:44:35,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:44:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:44:37,001 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 18:44:37,001 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:44:37,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873620133] [2021-11-25 18:44:37,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873620133] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:44:37,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303115326] [2021-11-25 18:44:37,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 18:44:37,002 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:44:37,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:44:37,005 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:44:37,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065db2b6-b8f8-4324-abb2-d2202ec33137/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:44:37,163 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-25 18:44:37,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:44:37,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-25 18:44:37,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:44:37,180 INFO L388 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 14 treesize of output 12 [2021-11-25 18:44:37,383 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 18:44:37,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 134 treesize of output 131 [2021-11-25 18:44:37,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:37,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2021-11-25 18:44:37,414 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:44:37,424 INFO L388 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 126 treesize of output 93 [2021-11-25 18:44:38,057 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:44:38,065 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:44:38,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 80 treesize of output 34 [2021-11-25 18:44:38,108 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-25 18:44:38,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:44:38,632 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:44:38,633 INFO L388 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 217 treesize of output 221 [2021-11-25 18:44:38,724 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:44:38,726 INFO L388 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 59 treesize of output 42 [2021-11-25 18:44:38,874 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2021-11-25 18:44:38,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 48 [2021-11-25 18:44:38,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:38,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2021-11-25 18:44:39,221 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-25 18:44:39,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:44:39,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2021-11-25 18:44:40,991 INFO L354 Elim1Store]: treesize reduction 40, result has 42.9 percent of original size [2021-11-25 18:44:40,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 129 treesize of output 137 [2021-11-25 18:44:41,968 INFO L354 Elim1Store]: treesize reduction 45, result has 41.6 percent of original size [2021-11-25 18:44:41,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 95 treesize of output 103 [2021-11-25 18:44:43,025 INFO L354 Elim1Store]: treesize reduction 686, result has 27.3 percent of original size [2021-11-25 18:44:43,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 427 treesize of output 552 [2021-11-25 18:45:02,162 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2021-11-25 18:45:02,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 39 [2021-11-25 18:45:02,207 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:02,208 INFO L388 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 47 treesize of output 34 [2021-11-25 18:45:02,276 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:02,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:02,278 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:02,278 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:02,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 69 [2021-11-25 18:45:02,342 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:02,344 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:02,345 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:02,347 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:02,375 INFO L354 Elim1Store]: treesize reduction 26, result has 21.2 percent of original size [2021-11-25 18:45:02,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 110 treesize of output 81 [2021-11-25 18:45:02,562 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-25 18:45:02,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:02,616 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:02,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:02,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:02,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:02,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 79 [2021-11-25 18:45:02,893 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:02,894 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:02,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:02,898 INFO L388 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 44 [2021-11-25 18:45:02,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:02,969 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:45:02,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 70 [2021-11-25 18:45:03,638 INFO L354 Elim1Store]: treesize reduction 41, result has 57.7 percent of original size [2021-11-25 18:45:03,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 129 [2021-11-25 18:45:05,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:05,620 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:05,624 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:05,651 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:45:05,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 108 treesize of output 120 [2021-11-25 18:45:07,484 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:07,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:07,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:07,487 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:07,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:07,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 74 [2021-11-25 18:45:07,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:07,719 INFO L354 Elim1Store]: treesize reduction 41, result has 57.7 percent of original size [2021-11-25 18:45:07,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 127 treesize of output 134 [2021-11-25 18:45:09,663 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:09,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:09,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:09,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 49 [2021-11-25 18:45:09,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:09,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:09,909 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:45:09,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 75 [2021-11-25 18:45:13,062 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2021-11-25 18:45:13,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 39 [2021-11-25 18:45:13,126 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:13,127 INFO L388 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 47 treesize of output 34 [2021-11-25 18:45:13,171 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:13,172 INFO L388 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 47 treesize of output 34 [2021-11-25 18:45:13,228 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2021-11-25 18:45:13,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 39 [2021-11-25 18:45:14,624 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2021-11-25 18:45:14,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 39 [2021-11-25 18:45:14,722 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:14,725 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:14,725 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:14,727 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:14,747 INFO L354 Elim1Store]: treesize reduction 26, result has 21.2 percent of original size [2021-11-25 18:45:14,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 105 [2021-11-25 18:45:14,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:14,964 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:14,967 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:14,967 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:14,971 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:14,979 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 18:45:14,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 151 treesize of output 1 [2021-11-25 18:45:15,310 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:15,311 INFO L388 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 47 treesize of output 34 [2021-11-25 18:45:15,478 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:15,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:15,480 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:15,480 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:15,481 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:15,482 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:15,482 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:15,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 74 [2021-11-25 18:45:15,586 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-25 18:45:16,924 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:16,926 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:16,927 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:16,930 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:16,995 INFO L354 Elim1Store]: treesize reduction 41, result has 53.9 percent of original size [2021-11-25 18:45:16,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 127 treesize of output 126 [2021-11-25 18:45:17,826 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:17,830 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:17,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:17,833 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:17,834 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:17,864 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:45:17,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 125 treesize of output 108 [2021-11-25 18:45:22,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:22,292 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-11-25 18:45:22,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 91 treesize of output 91 [2021-11-25 18:45:23,552 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:23,553 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:23,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:45:23,580 INFO L354 Elim1Store]: treesize reduction 14, result has 53.3 percent of original size [2021-11-25 18:45:23,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 65 [2021-11-25 18:45:25,151 INFO L354 Elim1Store]: treesize reduction 57, result has 62.7 percent of original size [2021-11-25 18:45:25,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 127 treesize of output 174 [2021-11-25 18:45:32,624 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:32,625 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:32,632 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:32,761 INFO L354 Elim1Store]: treesize reduction 37, result has 66.4 percent of original size [2021-11-25 18:45:32,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 125 treesize of output 146 [2021-11-25 18:45:50,585 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:50,586 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:50,587 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:50,587 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:50,671 INFO L354 Elim1Store]: treesize reduction 41, result has 53.9 percent of original size [2021-11-25 18:45:50,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 127 treesize of output 126 [2021-11-25 18:45:51,318 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:51,323 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:51,324 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:51,325 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:51,326 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:51,326 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:51,327 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:45:51,356 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:45:51,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 125 treesize of output 120 [2021-11-25 18:46:07,025 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:46:07,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:07,029 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:46:07,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:07,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 74 [2021-11-25 18:46:07,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:07,237 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:46:07,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 70 [2021-11-25 18:46:07,631 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:46:07,631 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:46:07,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:07,633 INFO L388 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 44 [2021-11-25 18:46:08,215 INFO L354 Elim1Store]: treesize reduction 41, result has 57.7 percent of original size [2021-11-25 18:46:08,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 129 [2021-11-25 18:46:09,285 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:46:09,286 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:46:09,294 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:46:09,330 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:46:09,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 108 treesize of output 120 [2021-11-25 18:46:11,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:11,596 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:46:11,597 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:46:11,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:11,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 74 [2021-11-25 18:46:17,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:17,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2021-11-25 18:46:17,260 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-25 18:46:17,483 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-25 18:46:17,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:17,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2021-11-25 18:46:17,763 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:46:17,764 INFO L388 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 47 treesize of output 34 [2021-11-25 18:46:17,910 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2021-11-25 18:46:17,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 39 [2021-11-25 18:46:18,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:46:18,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2021-11-25 18:46:18,058 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:46:18,059 INFO L388 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 47 treesize of output 34 [2021-11-25 18:46:23,418 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:46:23,425 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:46:24,309 INFO L354 Elim1Store]: treesize reduction 160, result has 64.7 percent of original size [2021-11-25 18:46:24,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 2764 treesize of output 2325